:root {
            --accent-cyan: #ffa92c;
            --accent-mandarina: #ffa92c;
            --dark-nav: #010e44;
            --text-color: #02105F;
            --text-secondary-dark: #d8d8d8;
            --line-height-tight: 1.1;
            --line-height-normal: 1.3;

            /* Main content typography */
            --lora-size-large: 4.5rem;
            --lora-size-small: 2.5rem;
            --roboto-size: 1.3rem;
            --title-margin: 1rem;
            --roboto-bold: 800;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html, body, .presentation, .slide {
            overflow-x: hidden !important;
            overscroll-behavior-x: none !important;
        }

        html {
            height: 100%;
            overflow: hidden;
            background: #FFFFFF;
            max-width: 100vw;
        }

        body {
            height: 100%;
            overflow: hidden;
            font-family: 'Roboto', sans-serif;
            font-weight: 300;
            background: #FFFFFF;
            transition: background 0.3s ease;
            max-width: 100vw;
            position: fixed;
            width: 100%;
        }

        html.dark-theme,
        body.dark-theme {
            background: radial-gradient(ellipse at center, #02105F 0%, #010a3a 50%, #000820 100%);
            background-attachment: fixed;
        }

        .serif {
            font-family: 'Playfair Display', serif;
        }

        .text-inverted {
            display: inline-block;
            transform: scaleY(-1);
            color: var(--accent-cyan);
        }

        /* Navigation Header */
        .nav-header {
            position: fixed;
            top: 4rem;
            left: 50%;
            transform: translateX(-50%);
            background: radial-gradient(ellipse at center, #2a5090 0%, var(--dark-nav) 70%);
            backdrop-filter: blur(10px);
            padding: 0 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
            border-radius: 4px;
            min-width: min(700px, 95vw);
            max-width: 95vw;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        /* Navbar theme variations */
        body.dark-theme .nav-header {
            background: #f5f5f5;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        body.dark-theme .logo-main span {
            color: var(--text-color);
        }

        body.dark-theme .logo-main span.logo-accent {
            color: var(--accent-cyan) !important;
        }

        body.dark-theme .care-letter {
            color: #ffffff;
        }

        body.dark-theme .nav-icon {
            border-color: #02105F;
        }

        body.dark-theme .nav-icon svg {
            fill: #02105F;
            stroke: #02105F;
        }

        body.dark-theme .nav-icon:hover {
            background-color: #02105F;
        }

        body.dark-theme .nav-icon:hover svg {
            fill: var(--dark-nav);
            stroke: var(--dark-nav);
        }

        body.dark-theme .menu-toggle span {
            background-color: #02105F;
        }

        .nav-left {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .nav-icon {
            width: 44px;
            height: 44px;
            border: 2px solid #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            background: none;
        }

        .nav-icon:hover {
            background-color: #ffffff;
            transform: scale(1.08);
        }

        .nav-icon svg {
            width: 22px;
            height: 22px;
            fill: #ffffff;
            stroke: #ffffff;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            transition: fill 0.3s ease, stroke 0.3s ease;
        }

        .nav-icon:hover svg {
            fill: var(--dark-nav);
            stroke: var(--dark-nav);
        }

        .menu-toggle {
            display: flex;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 20px 10px;
            background: none;
            border: none;
        }

        .menu-toggle span {
            width: 32px;
            height: 3px;
            background-color: #ffffff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .menu-toggle:hover span {
            background-color: #4aa5b0;
        }

        /* Hamburger to X animation */
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        .nav-brand-container {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }

        .logo-wrapper {
            position: relative;
            display: flex;
            align-items: center;
            padding: 20px 0;
        }

        .care-letter {
            position: absolute;
            font-family: 'Roboto', sans-serif;
            font-size: 12px;
            font-weight: 400;
            color: #000000;
            letter-spacing: 1px;
            z-index: 10;
        }

        .care-letter.top-left {
            top: -5px;
            left: -25px;
        }

        .care-letter.top-right {
            top: -5px;
            right: -25px;
        }

        .care-letter.bottom-left {
            bottom: -10px;
            left: -25px;
        }

        .care-letter.bottom-right {
            bottom: -10px;
            right: -25px;
        }

        .logo-main {
            font-family: 'Lora', serif;
            font-size: 48px;
            font-weight: 100;
            letter-spacing: -2px;
            line-height: 1;
            display: flex
        ;
            text-decoration: none;
        }

        .logo-main span {
            display: inline-block;
            transform: scaleX(-1);
            color: #ffffff;
        }

        .logo-main span.logo-accent {
            color: var(--accent-cyan) !important;
        }

        /* Logo image (ready for when designer provides the image) */
        .logo-image {
            height: 48px;
            width: auto;
            display: block;
        }

        /* Hide text logo when image is used */
        .logo-wrapper.has-image .logo-main {
            display: none;
        }

        .nav-link {
            text-decoration: none;
            color: #FFFFFF;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s;
            display: none; /* Hidden by default, shown in desktop menu */
        }

        .nav-link:hover {
            color: var(--accent-cyan);
        }

        /* Presentation Container - with scroll snap */
        .presentation {
            margin-top: 60px;
            position: relative;
            height: 100vh;
            width: 100vw;
            max-width: 100vw;
            overflow-x: hidden !important;
            overflow-y: scroll;
            -webkit-scroll-snap-type: y mandatory;
            scroll-snap-type: y mandatory;
            scroll-behavior: smooth;
            scrollbar-width: none; /* Firefox */
            -ms-overflow-style: none; /* IE and Edge */
            -webkit-overflow-scrolling: touch; /* Smooth scroll on iOS */
            overscroll-behavior: contain;
        }

        /* Hide scrollbar for Chrome, Safari and Opera */
        .presentation::-webkit-scrollbar {
            display: none;
        }

        /* Slide styles */
        .slide {
            width: 100%;
            height: 100vh;
            min-height: 100vh;
            max-height: 100vh;
            padding: 3rem 2rem;
            display: flex;
            flex-direction: column;
            position: relative;
            z-index: 1;
            -webkit-scroll-snap-align: start;
            scroll-snap-align: start;
            scroll-snap-stop: always;
            box-sizing: border-box;
            overflow: hidden;
        }


        /* Punto arriba */
        .slide::before {
            content: '';
            position: absolute;
            bottom: 128px;
            left: 50%;
            width: 8px;
            height: 8px;
            background: var(--accent-cyan);
            border-radius: 50%;
            transform: translateX(-50%);
            z-index: 10;
        }

        /* Línea abajo del punto */
        .slide::after {
            content: '';
            position: absolute;
            bottom: 78px;
            left: 50%;
            width: 1px;
            height: 50px;
            background: var(--accent-cyan);
            transform: translateX(-50%);
            z-index: 10;
        }

        /* Desktop */
        @media (min-width: 769px) {
            .slide::before {
                bottom: 82px;
            }
            .slide::after {
                bottom: 17px;
                height: 65px;
                width: 1.2px;
            }
        }

        /* Ocultar en último slide */
        .slide:last-child::before,
        .slide:last-child::after {
            display: none;
        }

        /* Ocultar en slide 1 y 2 (slide 1 ya tiene su propia línea) */
        .slide-1::before,
        .slide-1::after,
        .slide-2::before,
        .slide-2::after {
            display: none;
        }

        /* Drag Navigation Zones */
        .drag-zone {
            position: fixed;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 80px;
            z-index: 9999;
            cursor: grab;
        }

        .drag-zone:active {
            cursor: grabbing;
        }

        .drag-zone-top {
            top: 0;
        }

        .drag-zone-bottom {
            bottom: 0;
        }

        /* Global 3D Animation Background */
        #animation-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            z-index: 1;
            pointer-events: none;
        }

        #animation-container canvas {
            pointer-events: auto;
        }

        /* Mobile Particle Background (hidden on desktop) */
        #canvas-container {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
        }

        #canvas-container canvas {
            width: 100% !important;
            height: 100% !important;
            pointer-events: none;
        }

        /* Allow clicks to pass through to canvas when not over interactive elements */
        .slide {
            pointer-events: none;
        }

        .slide > * {
            pointer-events: auto;
        }

        /* Slide 1 - Hero */
        .slide-1 {
            position: relative;
            padding: 0;
            overflow: hidden;
            justify-content: center;
            align-items: center;
        }

        /* Hero text overlay on Slide 1 */
        .hero-text-overlay {
            position: relative;
            text-align: center;
            z-index: 100;
            pointer-events: none;
            max-width: 1400px;
            width: 100%;
            padding: 0 2rem;
        }

        /* Enable pointer events only for corriente word */
        .hero-text-overlay .corriente {
            pointer-events: auto;
            cursor: pointer;
        }

        .hero-text-overlay h1 {
            font-family: 'Lora', serif;
            font-size: var(--lora-size-large);
            font-weight: 100;
            line-height: var(--line-height-tight);
            margin-bottom: var(--title-margin);
            color: var(--text-color);
        }

        body.dark-theme .hero-text-overlay h1 {
            color: #E8E4DC;
        }

        .hero-text-overlay p {
            font-family: 'Roboto', sans-serif;
            font-weight: 300;
            font-size: var(--roboto-size);
            line-height: var(--line-height-normal);
            color: #444;
        }

        body.dark-theme .hero-text-overlay p {
            color: var(--text-secondary-dark);
        }

        .hero-text-overlay p strong {
            font-weight: var(--roboto-bold);
            color: var(--text-color);
        }

        body.dark-theme .hero-text-overlay p strong {
            color: #ffffff;
        }

        /* Corriente word with rotated letters */
        .corriente {
            color: var(--accent-cyan);
            white-space: nowrap;
            display: inline-block;
        }

        .corriente span {
            display: inline-block;
            transform: scaleX(1);
            transition: transform 0.3s ease;
        }

        /* Animation on page load - each letter animates sequentially */
        @keyframes flipLetter {
            0% {
                transform: scaleX(1);
            }
            100% {
                transform: scaleX(-1);
            }
        }

        .corriente span:nth-child(1) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0s;
        }

        .corriente span:nth-child(2) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.2s;
        }

        .corriente span:nth-child(3) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.4s;
        }

        .corriente span:nth-child(4) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.6s;
        }

        .corriente span:nth-child(5) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.8s;
        }

        .corriente span:nth-child(6) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1s;
        }

        .corriente span:nth-child(7) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1.2s;
        }

        .corriente span:nth-child(8) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1.4s;
        }

        .corriente span:nth-child(9) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1.6s;
        }

        /* Hover animation - disabled in favor of JS sequential animation */
        /* After animation completes, return to normal state */
        .corriente.animation-complete span {
            animation: none;
            transform: scaleX(1);
        }

        /* Manual transition for hover animation */
        .corriente.animating span {
            transition: transform 0.3s ease;
        }

        .animation-overlay {
            position: absolute;
            bottom: 4rem;
            left: 50%;
            transform: translateX(-50%);
            text-align: center;
            z-index: 100;
            pointer-events: none;
        }

        .animation-overlay > * {
            pointer-events: auto;
        }

        .overlay-text {
            font-family: 'Playfair Display', serif;
            font-size: 2rem;
            color: white;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
            margin-bottom: 1.5rem;
            animation: floatIn 1s ease-out 0.5s both;
        }

        @keyframes floatIn {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .cta-button-overlay {
            display: inline-block;
            padding: 1rem 2.5rem;
            background: white;
            color: var(--text-color);
            text-decoration: none;
            border-radius: 50px;
            font-weight: 700;
            transition: all 0.3s;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            animation: floatIn 1s ease-out 0.8s both;
        }

        .cta-button-overlay:hover {
            background: var(--accent-cyan);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(52, 134, 144, 0.4);
        }

        /* Slide 2 - Reflejo */
        .slide-2 {
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 4rem 2rem;
        }

        .hero-text {
            max-width: 1400px;
            width: 100%;
            margin: 0 auto;
        }

        .hero-text h1 {
            font-family: 'Playfair Display', serif;
            font-size: var(--lora-size-large);
            line-height: var(--line-height-tight);
            margin-bottom: 2rem;
            color: var(--text-color);
        }

        .hero-text h1 .generica {
            color: var(--accent-cyan);
            display: inline-block;
            transform: scaleX(-1);
            font-style: italic;
        }

        .hero-text p {
            font-family: 'Roboto', sans-serif;
            font-weight: 300;
            font-size: 1.2rem;
            line-height: var(--line-height-normal);
            color: #444;
        }

        .hero-text p strong {
            font-weight: var(--roboto-bold);
            color: var(--text-color);
        }

        .scroll-indicator {
            position: absolute;
            bottom: 2rem;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
            z-index: 100;
        }

        .scroll-text {
            font-family: 'Roboto', sans-serif;
            font-size: 0.9rem;
            color: var(--accent-cyan);
            font-weight: 300;
        }

        .scroll-line {
            width: 2px;
            height: 100px;
            background: var(--accent-cyan);
            position: relative;
        }

        .scroll-line::before {
            content: '';
            position: absolute;
            top: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-cyan);
        }

        /* Indicador superior (para ir al slide anterior) */
        .scroll-indicator-top {
            position: absolute;
            top: 70px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            z-index: 100;
        }

        .scroll-line-top {
            width: 1px;
            height: 50px;
            background: var(--accent-cyan);
            position: relative;
        }

        /* Punto abajo de la línea superior */
        .scroll-line-top::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-cyan);
        }

        /* Desktop */
        @media (min-width: 769px) {
            .scroll-indicator-top {
                top: 20px;
            }
            .scroll-line-top {
                width: 1.2px;
                height: 65px;
            }
            .scroll-line-top::after {
                width: 9px;
                height: 9px;
            }
        }

        /* Slide 2 specific hero text */
        .slide-2-hero {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            max-width: 1400px;
            width: 100%;
            padding: 0 2rem;
            z-index: 100;
        }

        .slide-2-hero h1 {
            font-family: 'Lora', serif;
            font-size: var(--lora-size-large);
            font-weight: 100;
            line-height: var(--line-height-tight);
            margin-bottom: var(--title-margin);
            color: var(--text-color);
        }

        body.dark-theme .slide-2-hero h1 {
            color: #E8E4DC;
        }

        .slide-2-hero .hero-subtitle {
            font-size: var(--roboto-size);
            margin-bottom: var(--title-margin);
            color: var(--text-color);
        }

        body.dark-theme .slide-2-hero .hero-subtitle {
            color: #E8E4DC;
        }

        body.dark-theme .slide-2-hero .hero-subtitle strong {
            color: #E8E4DC;
        }

        .slide-2-hero p {
            font-family: 'Roboto', sans-serif;
            font-weight: 300;
            font-size: var(--roboto-size);
            line-height: var(--line-height-normal);
            color: #444;
        }

        body.dark-theme .slide-2-hero p {
            color: var(--text-secondary-dark);
        }

        .slide-2-hero .hero-subtitle strong,
        .slide-2-hero p strong {
            font-weight: var(--roboto-bold);
        }

        body.dark-theme .slide-2-hero p strong {
            color: #ffffff;
        }

        /* Reflejo word with animated letters */
        .slide-2-hero .reflejo {
            pointer-events: auto;
            cursor: pointer;
        }

        .reflejo {
            color: var(--accent-cyan);
            white-space: nowrap;
            display: inline-block;
        }

        .reflejo span {
            display: inline-block;
            transform: scaleX(1);
            transition: transform 0.3s ease;
        }

        .reflejo span:nth-child(1) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0s;
        }

        .reflejo span:nth-child(2) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.2s;
        }

        .reflejo span:nth-child(3) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.4s;
        }

        .reflejo span:nth-child(4) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.6s;
        }

        .reflejo span:nth-child(5) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.8s;
        }

        .reflejo span:nth-child(6) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1s;
        }

        .reflejo span:nth-child(7) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1.2s;
        }

        .reflejo.animation-complete span {
            animation: none;
            transform: scaleX(1);
        }

        .reflejo.animating span {
            transition: transform 0.3s ease;
        }

        .cta-button {
            display: inline-block;
            padding: 1rem 2.5rem;
            background: var(--accent-cyan);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            margin-top: 2rem;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 149, 155, 0.4);
            opacity: 0.9;
        }

        /* Slide 3 - Bienvenida */
        .slide-3 {
            justify-content: center;
            align-items: center;
            text-align: center;
        }

        .slide-3-hero {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            max-width: 1400px;
            width: 100%;
            padding: 0 2rem;
            z-index: 100;
        }

        .slide-3-hero h1 {
            font-family: 'Lora', serif;
            font-size: var(--lora-size-large);
            font-weight: 100;
            line-height: var(--line-height-tight);
            margin-bottom: var(--title-margin);
            color: var(--text-color);
        }

        body.dark-theme .slide-3-hero h1 {
            color: #E8E4DC;
        }

        .slide-3-hero p {
            font-family: 'Roboto', sans-serif;
            font-weight: 300;
            font-size: var(--roboto-size);
            line-height: var(--line-height-normal);
            color: #444;
            margin-bottom: 2rem;
        }

        body.dark-theme .slide-3-hero p {
            color: var(--text-secondary-dark);
        }

        .slide-3-hero p strong {
            font-weight: var(--roboto-bold);
        }

        body.dark-theme .slide-3-hero p strong {
            color: #ffffff;
        }

        /* Viaje word with animated letters */
        .slide-3-hero .viaje {
            pointer-events: auto;
            cursor: pointer;
        }

        .viaje {
            color: var(--accent-cyan);
            white-space: nowrap;
            display: inline-block;
        }

        .viaje span {
            display: inline-block;
            transform: scaleX(1);
            transition: transform 0.3s ease;
        }

        .viaje span:nth-child(1) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0s;
        }

        .viaje span:nth-child(2) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.2s;
        }

        .viaje span:nth-child(3) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.4s;
        }

        .viaje span:nth-child(4) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.6s;
        }

        .viaje span:nth-child(5) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.8s;
        }

        .viaje.animation-complete span {
            animation: none;
            transform: scaleX(1);
        }

        .viaje.animating span {
            transition: transform 0.3s ease;
        }

        /* Conocerte word with animated letters */
        .slide-3-hero .conocerte {
            pointer-events: auto;
            cursor: pointer;
        }

        .conocerte {
            color: var(--accent-cyan);
            white-space: nowrap;
            display: inline-block;
        }

        .conocerte span {
            display: inline-block;
            transform: scaleX(1);
            transition: transform 0.3s ease;
        }

        .conocerte span:nth-child(1) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0s;
        }

        .conocerte span:nth-child(2) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.2s;
        }

        .conocerte span:nth-child(3) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.4s;
        }

        .conocerte span:nth-child(4) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.6s;
        }

        .conocerte span:nth-child(5) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 0.8s;
        }

        .conocerte span:nth-child(6) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1s;
        }

        .conocerte span:nth-child(7) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1.2s;
        }

        .conocerte span:nth-child(8) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1.4s;
        }

        .conocerte span:nth-child(9) {
            animation: flipLetter 0.3s ease forwards;
            animation-delay: 1.6s;
        }

        .conocerte.animation-complete span {
            animation: none;
            transform: scaleX(1);
        }

        .conocerte.animating span {
            transition: transform 0.3s ease;
        }

        /* Slide 4 - Bienvenida (old slide 3) */
        .slide-4-hero {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            max-width: 1400px;
            width: 100%;
            padding: 0 2rem;
            z-index: 100;
        }

        .slide-4-hero h1 {
            font-family: 'Lora', serif;
            font-size: var(--lora-size-large);
            font-weight: 100;
            line-height: var(--line-height-tight);
            margin-bottom: var(--title-margin);
            color: var(--text-color);
        }

        body.dark-theme .slide-4-hero h1 {
            color: #E8E4DC;
        }

        .slide-4-hero p {
            font-family: 'Roboto', sans-serif;
            font-weight: 300;
            font-size: var(--roboto-size);
            line-height: var(--line-height-normal);
            color: #444;
            margin-bottom: 2rem;
        }

        body.dark-theme .slide-4-hero p {
            color: var(--text-secondary-dark);
        }

        .slide-4-hero p strong {
            font-weight: var(--roboto-bold);
        }

        body.dark-theme .slide-4-hero p strong {
            color: #ffffff;
        }

        /* Viaje word in slide 4 */
        .slide-4-hero .viaje {
            pointer-events: auto;
            cursor: pointer;
        }

        /* Slide 5 - Diagnostic interactive */
        .slide-5 {
            background: radial-gradient(ellipse at center, #02105F 0%, #010a3a 50%, #000820 100%);
            justify-content: center;
            align-items: center;
            position: relative;
            overflow-y: hidden;
        }

        .slide-5 * {
            color: white;
        }

        .diagnostic-container {
            position: relative;
            width: 100%;
            max-width: 1400px;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            align-items: center;
            padding: 2rem;
            padding-top: 100px;
        }

        .diagnostic-title {
            font-family: 'Lora', serif;
            font-size: var(--lora-size-large);
            font-weight: 100;
            margin-bottom: 3rem;
            text-align: center;
        }

        .diagnostic-title .autoconocimiento {
            color: var(--accent-cyan);
            display: inline-block;
        }

        .diagnostic-title .autoconocimiento span {
            display: inline-block;
            color: inherit;
            transform: scaleX(1);
            transition: transform 0.3s ease;
            animation: flipLetters 0.3s ease forwards;
            animation-delay: calc(var(--letter-index) * 0.05s);
        }

        .diagnostic-title .autoconocimiento span:nth-child(1) { --letter-index: 0; }
        .diagnostic-title .autoconocimiento span:nth-child(2) { --letter-index: 1; }
        .diagnostic-title .autoconocimiento span:nth-child(3) { --letter-index: 2; }
        .diagnostic-title .autoconocimiento span:nth-child(4) { --letter-index: 3; }
        .diagnostic-title .autoconocimiento span:nth-child(5) { --letter-index: 4; }
        .diagnostic-title .autoconocimiento span:nth-child(6) { --letter-index: 5; }
        .diagnostic-title .autoconocimiento span:nth-child(7) { --letter-index: 6; }
        .diagnostic-title .autoconocimiento span:nth-child(8) { --letter-index: 7; }
        .diagnostic-title .autoconocimiento span:nth-child(9) { --letter-index: 8; }
        .diagnostic-title .autoconocimiento span:nth-child(10) { --letter-index: 9; }
        .diagnostic-title .autoconocimiento span:nth-child(11) { --letter-index: 10; }
        .diagnostic-title .autoconocimiento span:nth-child(12) { --letter-index: 11; }
        .diagnostic-title .autoconocimiento span:nth-child(13) { --letter-index: 12; }
        .diagnostic-title .autoconocimiento span:nth-child(14) { --letter-index: 13; }
        .diagnostic-title .autoconocimiento span:nth-child(15) { --letter-index: 14; }
        .diagnostic-title .autoconocimiento span:nth-child(16) { --letter-index: 15; }

        .diagnostic-cards {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-bottom: -60px;
            width: 100%;
            max-width: 900px;
            position: relative;
            z-index: 1;
            padding: 1rem 1rem 0 1rem;
        }

        .diagnostic-card {
            flex: 0 0 auto;
            width: 200px;
            height: 200px;
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: 0;
            padding: 2rem 1.5rem !important;
            text-align: center;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: rgba(64, 64, 64, 0.3);
        }

        .diagnostic-card h3 {
            font-family: 'Roboto', sans-serif;
            font-size: 0.75rem;
            font-weight: 300;
            margin: 0;
            line-height: 1.5;
            padding: 0;
        }

        .diagnostic-card h3 strong {
            font-weight: 700;
        }

        .diagnostic-card .highlight {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        .diagnostic-interactive {
            position: relative;
            width: 100%;
            max-width: 1000px;
            height: 600px;
            display: flex;
            justify-content: center;
            align-items: flex-start;
            padding-top: 2rem;
            margin-top: 0;
            margin-bottom: 1rem;
            z-index: 2;
        }

        .diagnostic-image-container {
            position: relative;
            width: min(420px, 55vw);
            height: min(420px, 55vw);
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .diagnostic-image-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background:
                /* Extended hand shadow - right but not far corner */
                radial-gradient(ellipse 140px 110px at 75% 48%,
                    rgba(0, 0, 0, 0.8) 0%,
                    rgba(0, 0, 0, 0.6) 20%,
                    rgba(0, 0, 0, 0.35) 45%,
                    transparent 70%),
                /* Head/mirror shadow - top center */
                radial-gradient(ellipse 150px 140px at 52% 25%,
                    rgba(0, 0, 0, 0.75) 0%,
                    rgba(0, 0, 0, 0.55) 25%,
                    rgba(0, 0, 0, 0.3) 55%,
                    transparent 80%),
                /* Center body shadow */
                radial-gradient(ellipse 130px 100px at 50% 52%,
                    rgba(0, 0, 0, 0.7) 0%,
                    rgba(0, 0, 0, 0.45) 30%,
                    rgba(0, 0, 0, 0.25) 60%,
                    transparent 100%),
                /* Pedestal shadow - bottom */
                radial-gradient(ellipse 110px 65px at 50% 85%,
                    rgba(0, 0, 0, 0.9) 0%,
                    rgba(0, 0, 0, 0.7) 30%,
                    rgba(0, 0, 0, 0.4) 65%,
                    transparent 100%);
            filter: blur(9px);
            z-index: 1;
        }

        .diagnostic-image {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            position: relative;
            z-index: 1;
        }

        #tetrahedron-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: auto;
            z-index: 10;
            cursor: grab;
        }

        #tetrahedron-canvas:active {
            cursor: grabbing;
        }

        .diagnostic-point {
            position: absolute;
            background: rgba(255, 255, 255, 0.15);
            color: white;
            padding: 0.35rem 0.7rem;
            border-radius: 4px;
            cursor: pointer;
            font-family: 'Roboto', sans-serif;
            font-size: 0.75rem;
            font-weight: 400;
            white-space: nowrap;
            z-index: 11;
            transition: background 0.3s ease, opacity 0.3s ease;
            opacity: 1;
            transform: translate(0, -50%);
            pointer-events: none;
            backdrop-filter: blur(4px);
            user-select: none;
        }

        .diagnostic-point:hover {
            background: rgba(255, 255, 255, 0.25);
        }

        .diagnostic-point.dragging {
            cursor: grabbing;
            background: rgba(255, 255, 255, 0.3);
            z-index: 12;
        }

        .diagnostic-point.hidden {
            opacity: 0;
            pointer-events: none;
        }

        .diagnostic-toast {
            position: absolute;
            background: rgba(1, 14, 68, 0.75);
            backdrop-filter: blur(10px);
            border-radius: 8px;
            padding: 1.5rem 2rem;
            max-width: 300px;
            left: -330px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 20;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        body.dark-theme .diagnostic-toast {
            background: rgba(1, 14, 68, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .diagnostic-toast.active {
            opacity: 1;
            pointer-events: all;
        }

        .diagnostic-toast p {
            font-family: 'Roboto', sans-serif;
            font-size: 0.9rem;
            line-height: 1.6;
            color: white;
            margin: 0;
        }

        .toast-close {
            position: absolute;
            top: 8px;
            right: 8px;
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.4rem;
            cursor: pointer;
            padding: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.2s ease;
        }

        .toast-close:hover {
            color: white;
            background: rgba(255, 255, 255, 0.1);
        }

        .diagnostic-cta {
            text-align: center;
            margin-top: 0.5rem;
        }

        .diagnostic-cta .cta-button {
            background: var(--accent-cyan);
        }

        /* Slide 6 - Testimonials */
        .slide-6 {
            justify-content: center;
            align-items: center;
            padding: 4rem 2rem;
        }

        .testimonials-container {
            max-width: 1400px;
            width: 100%;
            margin: 0 auto;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            padding: 0 2rem;
        }

        .testimonials-title {
            font-family: 'Lora', serif !important;
            font-size: var(--lora-size-large) !important;
            font-weight: 100 !important;
            line-height: var(--line-height-tight) !important;
            margin-bottom: var(--title-margin);
            color: var(--text-color);
            max-width: 1400px;
            width: 100%;
            margin-left: auto;
            margin-right: auto;
        }

        .testimonials-title .question-mark {
            color: var(--accent-cyan);
        }

        body.dark-theme .testimonials-title {
            color: #E8E4DC;
        }

        .testimonials-title .metodologia {
            color: var(--accent-cyan);
            display: inline-block;
        }

        .testimonials-title .metodologia span {
            display: inline-block;
            color: inherit;
            transform: scaleX(1);
            transition: transform 0.3s ease;
            animation: flipLetters 0.3s ease forwards;
            animation-delay: calc(var(--letter-index) * 0.05s);
        }

        .testimonials-title .metodologia span:nth-child(1) { --letter-index: 0; }
        .testimonials-title .metodologia span:nth-child(2) { --letter-index: 1; }
        .testimonials-title .metodologia span:nth-child(3) { --letter-index: 2; }
        .testimonials-title .metodologia span:nth-child(4) { --letter-index: 3; }
        .testimonials-title .metodologia span:nth-child(5) { --letter-index: 4; }
        .testimonials-title .metodologia span:nth-child(6) { --letter-index: 5; }
        .testimonials-title .metodologia span:nth-child(7) { --letter-index: 6; }
        .testimonials-title .metodologia span:nth-child(8) { --letter-index: 7; }
        .testimonials-title .metodologia span:nth-child(9) { --letter-index: 8; }
        .testimonials-title .metodologia span:nth-child(10) { --letter-index: 9; }
        .testimonials-title .metodologia span:nth-child(11) { --letter-index: 10; }

        .testimonials-grid {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-bottom: 2rem;
            width: 100%;
            max-width: 900px;
            padding: 1rem;
        }

        .testimonial-card {
            flex: 0 0 auto;
            width: 200px;
            height: 200px;
            border: 1px solid rgba(60, 60, 59, 0.15);
            border-radius: 0;
            padding: 1.5rem 1.2rem;
            text-align: left;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            background: rgba(240, 240, 240, 0.5);
            box-sizing: border-box;
        }

        body.dark-theme .testimonial-card {
            background: rgba(64, 64, 64, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .testimonial-quote {
            font-family: 'Roboto', sans-serif;
            font-size: 0.75rem;
            font-weight: 300;
            font-style: italic;
            line-height: 1.5;
            color: var(--text-color);
            margin-bottom: 1rem;
        }

        body.dark-theme .testimonial-quote {
            color: #E8E4DC;
        }

        .testimonial-author {
            font-family: 'Roboto', sans-serif;
            font-size: 0.75rem;
            font-weight: 300;
            color: var(--text-color);
            margin-top: auto;
        }

        body.dark-theme .testimonial-author {
            color: #E8E4DC;
        }

        .testimonial-role {
            font-family: 'Roboto', sans-serif;
            font-size: 0.65rem;
            font-weight: 300;
            font-style: italic;
            color: rgba(60, 60, 59, 0.7);
            margin-top: 0.25rem;
        }

        body.dark-theme .testimonial-role {
            color: rgba(232, 228, 220, 0.7);
        }

        /* Slide 7: FAQs */
        .slide-7 {
            padding-top: 100px;
            overflow-y: auto;
            pointer-events: auto;
        }

        /* Hide FAQs slide by default */
        .slide-7.hidden {
            display: none;
        }

        .faqs-container,
        .faqs-accordion,
        .faq-category,
        .faq-category-header,
        .faq-category-content,
        .faq-item,
        .faq-question,
        .faq-answer {
            pointer-events: auto;
        }

        .faqs-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 2rem 2rem;
        }

        .faqs-title {
            font-family: 'Lora', serif;
            font-size: 3rem;
            font-weight: 100;
            color: var(--text-color);
            text-align: center;
            margin-bottom: 1rem;
        }

        body.dark-theme .faqs-title {
            color: #E8E4DC;
        }

        .faqs-intro {
            font-family: 'Roboto', sans-serif;
            font-size: 1rem;
            font-weight: 300;
            color: var(--text-color);
            text-align: center;
            margin-bottom: 2rem;
            line-height: 1.5;
        }

        body.dark-theme .faqs-intro {
            color: #E8E4DC;
        }

        .faqs-accordion {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .faq-category {
            border: 1px solid rgba(0, 7, 32, 0.1);
            border-radius: 8px;
            overflow: hidden;
        }

        body.dark-theme .faq-category {
            border-color: rgba(232, 228, 220, 0.2);
        }

        .faq-category-header {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.5rem;
            background: rgba(0, 7, 32, 0.03);
            border: none;
            cursor: pointer;
            font-family: 'Roboto', sans-serif;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-color);
            text-align: left;
            transition: background 0.3s ease;
            -webkit-tap-highlight-color: transparent;
            touch-action: manipulation;
            user-select: none;
            -webkit-user-select: none;
        }

        body.dark-theme .faq-category-header {
            background: rgba(232, 228, 220, 0.05);
            color: #E8E4DC;
        }

        .faq-category-header:hover {
            background: rgba(0, 7, 32, 0.08);
        }

        body.dark-theme .faq-category-header:hover {
            background: rgba(232, 228, 220, 0.1);
        }

        .faq-category.active .faq-category-header {
            background: var(--accent-cyan);
            color: white;
        }

        .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s ease;
        }

        .faq-category.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-category-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-category.active .faq-category-content {
            max-height: 2000px;
        }

        .faq-item {
            border-top: 1px solid rgba(0, 7, 32, 0.05);
        }

        body.dark-theme .faq-item {
            border-color: rgba(232, 228, 220, 0.1);
        }

        .faq-question {
            width: 100%;
            display: block;
            padding: 0.8rem 1.5rem;
            background: transparent;
            border: none;
            cursor: pointer;
            font-family: 'Roboto', sans-serif;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-color);
            text-align: left;
            transition: background 0.2s ease;
            -webkit-tap-highlight-color: transparent;
            touch-action: manipulation;
            user-select: none;
            -webkit-user-select: none;
        }

        body.dark-theme .faq-question {
            color: #E8E4DC;
        }

        .faq-question:hover {
            background: rgba(0, 7, 32, 0.02);
        }

        body.dark-theme .faq-question:hover {
            background: rgba(232, 228, 220, 0.05);
        }

        .faq-item.active .faq-question {
            color: var(--accent-cyan);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 1.5rem;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0.5rem 1.5rem 1rem;
        }

        .faq-answer p {
            font-family: 'Roboto', sans-serif;
            font-size: 0.85rem;
            font-weight: 300;
            color: var(--text-color);
            line-height: 1.6;
            margin-bottom: 0.5rem;
        }

        body.dark-theme .faq-answer p {
            color: rgba(232, 228, 220, 0.8);
        }

        .faqs-footer {
            font-family: 'Roboto', sans-serif;
            font-size: 0.9rem;
            font-weight: 300;
            color: var(--text-color);
            text-align: center;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(0, 7, 32, 0.1);
        }

        body.dark-theme .faqs-footer {
            color: #E8E4DC;
            border-color: rgba(232, 228, 220, 0.2);
        }

        /* Mobile Scroll Test Button - base styles (before media queries) */
        .mobile-test-btn {
            display: none;
            position: fixed;
            top: 0;
            left: 50%;
            transform: translateX(-50%) translateY(-100%);
            background: var(--accent-cyan);
            color: white;
            text-decoration: none;
            padding: 0.7rem 1.5rem;
            border-radius: 0 0 25px 25px;
            font-family: 'Roboto', sans-serif;
            font-size: 0.9rem;
            font-weight: 600;
            z-index: 998;
            box-shadow: 0 4px 15px rgba(255, 169, 44, 0.4);
            transition: transform 0.3s ease;
            align-items: center;
            gap: 0.5rem;
        }

        .mobile-test-btn .play-icon {
            font-size: 0.7rem;
        }

        .mobile-test-btn.visible {
            transform: translateX(-50%) translateY(120px);
        }

        @media (max-width: 768px) {
            .presentation {
                scroll-snap-type: y mandatory;
                -webkit-overflow-scrolling: touch;
                overflow-x: hidden;
                overscroll-behavior: contain;
            }

            .slide {
                min-height: 100vh;
                height: 100vh;
                max-height: 100vh;
                overflow-y: auto;
                overflow-x: hidden;
                scroll-snap-align: start;
                scroll-snap-stop: always;
            }

            .hero-text-overlay,
            .slide-2-hero,
            .slide-3-hero,
            .slide-4-hero {
                pointer-events: none;
                width: 90% !important;
            }

            #animation-container {
                display: none;
            }

            #canvas-container {
                display: block;
                pointer-events: none;
            }

            .testimonials-title {
                font-size: clamp(1.5rem, 5vw, 2.5rem) !important;
                margin-bottom: 1rem;
            }

            .testimonials-grid {
                display: flex !important;
                flex-direction: column !important;
                align-items: center !important;
                justify-content: center !important;
                gap: 1rem;
                width: 85% !important;
                max-width: 85% !important;
                margin: 0 auto 1rem auto !important;
                padding: 0 !important;
            }

            .testimonial-card {
                width: 100% !important;
                max-width: 100% !important;
                height: auto !important;
                padding: 1.5rem !important;
                margin: 0 !important;
            }

            .testimonial-quote {
                font-size: 0.85rem;
                line-height: 1.4;
                margin-bottom: 0.5rem;
            }

            .testimonial-author {
                font-size: 0.85rem;
            }

            .testimonial-role {
                font-size: 0.75rem;
            }

            .diagnostic-title {
                font-size: 1.6rem;
                line-height: 1.3;
            }

            .diagnostic-cards {
                flex-direction: column;
                align-items: center;
                gap: 1rem;
                padding: 1rem 1rem 0 1rem;
            }

            .diagnostic-card {
                width: 85%;
                max-width: 320px;
                height: auto;
                min-height: auto;
                padding: 1.2rem 1rem !important;
            }

            .diagnostic-card h3 {
                font-size: 0.85rem;
                line-height: 1.4;
            }

            .diagnostic-interactive {
                margin-top: 0;
                padding-top: 1rem;
                height: 500px;
                min-height: 500px;
            }

            .diagnostic-image-container {
                width: min(320px, 70vw);
                height: min(320px, 70vw);
            }

            .slide-counter {
                display: none;
            }

            .floating-chat-btn {
                left: 2rem;
            }

            .vertical-test-btn {
                display: none !important;
            }

            .mobile-test-btn {
                display: flex;
            }
        }

        @media (max-width: 480px) {
            .testimonial-quote {
                font-size: 0.85rem !important;
                line-height: 1.5 !important;
            }

            /* Smaller footer buttons on mobile portrait */
            .floating-chat-btn {
                width: 44px;
                height: 44px;
                font-size: 18px;
                left: 1rem;
                bottom: 1rem;
            }

            .slide-controls {
                bottom: 1rem;
                right: 1rem;
                gap: 0.5rem;
            }

            .control-btn {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }

            .hero-text-overlay h1,
            .slide-2-hero h1,
            .slide-3-hero h1 {
                font-size: 2rem !important;
                line-height: 1.2 !important;
                margin-bottom: 1rem !important;
            }

            /* Slide 5 - allow internal scroll on small screens */
            .slide-5 {
                overflow-y: auto;
                -webkit-overflow-scrolling: touch;
            }

            /* Slide 4 - compact text to fit screen (has animation behind) */
            .slide-4-hero h1 {
                font-size: 1.4rem !important;
                margin-bottom: 0.5rem !important;
                line-height: 1.2 !important;
            }

            .slide-4-hero p {
                font-size: 0.75rem !important;
                line-height: 1.3 !important;
                margin-bottom: 0.5rem !important;
            }

            .slide-4-hero p br {
                display: none;
            }

            /* Slide 5 - diagnostic with horizontal carousel */
            .slide-5 {
                overflow: hidden;
            }

            .diagnostic-container {
                padding: 0.5rem;
                padding-top: 90px;
                height: 100%;
                display: flex;
                flex-direction: column;
            }

            .diagnostic-title {
                font-size: 2.2rem !important;
                line-height: 1.2 !important;
                margin-bottom: 0.8rem;
                padding: 0 0.5rem;
            }

            /* Horizontal scrolling cards */
            .diagnostic-cards {
                flex-direction: row !important;
                flex-wrap: nowrap !important;
                overflow-x: auto;
                overflow-y: hidden;
                scroll-snap-type: x mandatory;
                -webkit-overflow-scrolling: touch;
                gap: 0.8rem;
                padding: 0.5rem 1rem;
                margin-bottom: 0.5rem;
                width: 100%;
            }

            .diagnostic-cards::-webkit-scrollbar {
                display: none;
            }

            .diagnostic-card {
                flex: 0 0 75vw;
                max-width: 75vw;
                min-width: 75vw;
                padding: 1rem !important;
                height: auto;
                min-height: auto;
                scroll-snap-align: center;
            }

            .diagnostic-card h3 {
                font-size: 0.8rem;
                line-height: 1.4;
            }

            .diagnostic-interactive {
                flex: 1;
                height: auto;
                min-height: 200px;
                padding-top: 0;
                margin-top: 0;
            }

            .diagnostic-image-container {
                width: min(240px, 55vw);
                height: min(240px, 55vw);
            }

            /* Smaller labels on mobile, positioned right next to points */
            .diagnostic-point {
                font-size: 0.5rem;
                padding: 0.15rem 0.3rem;
                backdrop-filter: blur(2px);
                transform: translate(0, -50%);
                white-space: nowrap;
            }

            /* Hide CTA button in slide 5 on mobile */
            .diagnostic-cta {
                display: none;
            }

            /* Toast centered over image on mobile */
            .diagnostic-toast {
                left: 50% !important;
                top: 50% !important;
                transform: translate(-50%, -50%) !important;
                max-width: 85%;
                padding: 1rem 1.2rem;
                text-align: center;
            }

            .diagnostic-toast p {
                font-size: 0.8rem;
                line-height: 1.5;
            }

            /* Natural floor shadow for mobile */
            .diagnostic-image-container::before {
                background: none !important;
                filter: none !important;
            }

            .diagnostic-image-container::after {
                content: '';
                position: absolute;
                bottom: 5%;
                left: 50%;
                transform: translateX(-50%);
                width: 60%;
                height: 20px;
                background: radial-gradient(ellipse at center,
                    rgba(0, 0, 0, 0.4) 0%,
                    rgba(0, 0, 0, 0.2) 40%,
                    transparent 70%);
                border-radius: 50%;
                filter: blur(8px);
                z-index: 0;
            }

            .testimonial-author {
                font-size: 0.85rem;
            }

            .testimonial-role {
                font-size: 0.8rem;
            }
        }

        /* Slide 7-8 - Content slides */
        .slide-7,
        .slide-8 {
            background: #f8f7f5;
            justify-content: center;
            align-items: center;
        }

        body.dark-theme .slide-7,
        body.dark-theme .slide-8 {
            background: transparent;
        }

        .content-box {
            max-width: 900px;
            text-align: center;
            padding: 3rem;
        }

        .content-box h2 {
            font-family: 'Playfair Display', serif;
            font-size: 2.5rem;
            line-height: var(--line-height-tight);
            margin-bottom: 2rem;
            color: var(--text-color);
        }

        .content-box p {
            font-family: 'Roboto', sans-serif;
            font-weight: 300;
            font-size: 1.1rem;
            line-height: var(--line-height-normal);
            color: #444;
            margin-bottom: 1.5rem;
        }

        /* Slide 8 - Testimonials */
        .slide-8 {
            background: linear-gradient(135deg, #f5f3f0 0%, #e5e2dd 100%);
            justify-content: center;
            padding: 4rem;
        }


        /* Slide 9 - Final CTA */
        .slide-9 {
            background: linear-gradient(135deg, #2a6d7a 0%, #348690 50%, #3ea0ac 100%);
            justify-content: center;
            align-items: center;
            color: white;
            text-align: center;
        }

        .final-cta {
            max-width: 800px;
        }

        .final-cta h1 {
            font-family: 'Playfair Display', serif;
            font-size: 2.8rem;
            line-height: var(--line-height-normal);
            margin-bottom: 2rem;
        }

        .final-cta p {
            font-size: 1.3rem;
            line-height: 1.6;
            margin-bottom: 1rem;
        }

        .final-cta .emphasis {
            font-weight: 700;
            font-size: 1.4rem;
            margin-top: 2rem;
        }

        .steps-box {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            padding: 2rem;
            border-radius: 20px;
            margin: 3rem 0;
        }

        .steps-box h3 {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
        }

        .steps-list {
            list-style: none;
            text-align: left;
            max-width: 400px;
            margin: 0 auto;
        }

        .steps-list li {
            padding: 0.8rem 0;
            font-weight: 600;
            font-size: 1.1rem;
            position: relative;
            padding-left: 2rem;
        }

        .steps-list li:before {
            content: "→";
            position: absolute;
            left: 0;
        }

        .disclaimer {
            font-size: 0.9rem;
            opacity: 0.9;
            margin-top: 2rem;
        }

        .cta-button-light {
            display: inline-block;
            padding: 1rem 2.5rem;
            background: white;
            color: var(--accent-cyan);
            text-decoration: none;
            border-radius: 50px;
            font-weight: 700;
            margin-top: 2rem;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .cta-button-light:hover {
            background: var(--accent-cyan);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(52, 134, 144, 0.4);
        }

        /* Navigation controls */
        .slide-controls {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            display: flex;
            gap: 1rem;
            z-index: 1000;
        }

        .control-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--accent-cyan);
            color: white;
            border: none;
            cursor: pointer;
            font-size: 1.2rem;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0, 149, 155, 0.3);
        }

        .control-btn:hover {
            transform: scale(1.1);
            opacity: 0.9;
        }

        .control-btn:disabled {
            background: #ccc;
            cursor: not-allowed;
            opacity: 0.5;
        }

        .slide-counter {
            display: none;
        }

        /* Floating action buttons */
        .floating-chat-btn {
            position: fixed;
            bottom: 2rem;
            left: 2rem;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--accent-cyan);
            color: white;
            border: none;
            cursor: pointer;
            font-size: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(52, 134, 144, 0.4);
            transition: all 0.3s ease;
            z-index: 999;
        }

        .floating-chat-btn:hover {
            transform: translateY(-4px) scale(1.05);
            box-shadow: 0 8px 30px rgba(52, 134, 144, 0.6);
        }

        /* Mobile Menu Dropdown */
        .mobile-menu {
            position: fixed;
            top: 130px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--dark-nav);
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            padding: 0.5rem 0;
            z-index: 999;
            display: none;
            min-width: 200px;
        }

        .mobile-menu.active {
            display: block;
        }

        body.dark-theme .mobile-menu {
            background: var(--dark-nav);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .mobile-menu-link {
            display: block;
            padding: 1rem 1.5rem;
            text-decoration: none;
            color: #ffffff;
            font-family: 'Roboto', sans-serif;
            font-size: 1rem;
            font-weight: 500;
            transition: background 0.2s ease;
        }

        body.dark-theme .mobile-menu-link {
            color: #ffffff;
        }

        .mobile-menu-link:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        body.dark-theme .mobile-menu-link:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Vertical sticky test button */
        .vertical-test-btn {
            position: fixed;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            background: var(--accent-cyan);
            color: white;
            padding: 1rem 0.5rem;
            border: none;
            cursor: pointer;
            text-decoration: none;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            box-shadow: -3px 0 12px rgba(52, 134, 144, 0.3);
            transition: all 0.3s ease;
            z-index: 998;
            border-radius: 4px 0 0 4px;
            width: 50px;
            max-width: 50px;
            overflow: hidden;
        }

        .vertical-test-btn .text-wrapper {
            display: flex;
            flex-direction: row;
            gap: 4px;
            align-items: flex-start;
        }

        .vertical-test-btn:hover {
            background: #e8951f;
            box-shadow: -5px 0 18px rgba(255, 169, 44, 0.5);
        }

        .vertical-test-btn .play-icon {
            width: 32px;
            height: 32px;
            border: 2px solid white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }

        .vertical-test-btn .test-text-line1 {
            writing-mode: vertical-rl;
            text-orientation: mixed;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            white-space: nowrap;
            color: white;
        }

        .vertical-test-btn .test-text-line2 {
            writing-mode: vertical-rl;
            text-orientation: mixed;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            white-space: nowrap;
            color: white;
        }

        /* Chatbot Modal */
        .chatbot-modal {
            position: fixed;
            bottom: 100px;
            left: 2rem;
            width: 360px;
            height: 500px;
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
            display: none;
            flex-direction: column;
            z-index: 1000;
            overflow: hidden;
        }

        .chatbot-modal.active {
            display: flex;
            animation: slideUp 0.3s ease;
        }

        .chatbot-header {
            background: var(--accent-cyan);
            color: white;
            padding: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .chatbot-header h3 {
            margin: 0;
            font-size: 1.1rem;
        }

        .chatbot-close {
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
            padding: 0;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .chatbot-body {
            flex: 1;
            padding: 1.5rem;
            overflow-y: auto;
            background: #f8f8f8;
        }

        .chatbot-message {
            margin-bottom: 1rem;
            padding: 0.75rem 1rem;
            border-radius: 15px;
            max-width: 80%;
        }

        .chatbot-message.bot {
            background: white;
            margin-right: auto;
        }

        .chatbot-message.user {
            background: var(--accent-cyan);
            color: white;
            margin-left: auto;
        }

        .chatbot-footer {
            padding: 1rem 1.5rem;
            background: white;
            border-top: 1px solid #e0e0e0;
            display: flex;
            gap: 0.5rem;
        }

        .chatbot-input {
            flex: 1;
            padding: 0.75rem;
            border: 1px solid #ddd;
            border-radius: 25px;
            font-size: 14px;
            outline: none;
        }

        .chatbot-input:focus {
            border-color: var(--accent-cyan);
        }

        .chatbot-send {
            background: var(--accent-cyan);
            color: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            cursor: pointer;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Card detail modal */
        .card-detail-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(0, 0, 0, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            backdrop-filter: blur(5px);
            animation: fadeIn 0.3s ease;
        }

        .card-detail-content {
            background: #E8E4DC;
            padding: 60px;
            max-width: 600px;
            width: 90%;
            position: relative;
            border-radius: 0;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
            animation: slideUp 0.3s ease;
        }

        @keyframes slideUp {
            from {
                transform: translateY(30px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .close-btn {
            position: absolute;
            top: 20px;
            right: 20px;
            background: none;
            border: none;
            font-size: 40px;
            color: var(--text-color);
            cursor: pointer;
            line-height: 1;
            padding: 0;
            width: 40px;
            height: 40px;
            transition: transform 0.2s ease;
        }

        .close-btn:hover {
            transform: rotate(90deg);
        }

        .detail-word {
            font-family: Georgia, serif;
            font-size: 48px;
            font-weight: bold;
            color: var(--text-color);
            margin: 0 0 15px 0;
            padding-top: 20px;
            border-top: 3px solid var(--text-color);
        }

        .detail-etymology {
            font-family: Georgia, serif;
            font-style: italic;
            font-size: 18px;
            color: var(--text-color);
            margin: 0 0 30px 0;
        }

        .detail-divider {
            width: 100%;
            height: 3px;
            background: var(--text-color);
            margin: 30px 0;
        }

        .detail-definition {
            font-family: Georgia, serif;
            font-size: 20px;
            line-height: 1.8;
            color: var(--text-color);
            margin: 0;
        }

        /* Responsive */
        @media (max-width: 768px) {
            :root {
                --lora-size-large: 3.5rem;
                --lora-size-small: 2rem;
            }

            .slide {
                padding: 2rem 1.5rem;
            }

            .hero-text p {
                font-size: 1.5rem;
            }

            .slide-2 {
                padding-left: 2rem;
            }

            .slide-2-hero, .slide-3-hero, .slide-4-hero {
                max-width: 90vw;
            }

            .slide-2-hero, .slide-3-hero, .slide-4-hero {
                width: 90% !important;
            }

            .slide-2-hero p, .slide-3-hero p, .slide-4-hero p {
                font-size: 1.2rem;
            }

            .nav-header {
                min-width: 90vw;
                padding: 0 2rem;
                top: 1.5rem;
            }

            .care-letter {
                font-size: 10px;
                letter-spacing: 0.5px;
            }

            .care-letter.top-left {
                top: -3px;
                left: -20px;
            }

            .care-letter.top-right {
                top: -3px;
                right: -20px;
            }

            .care-letter.bottom-left {
                bottom: -8px;
                left: -20px;
            }

            .care-letter.bottom-right {
                bottom: -8px;
                right: -20px;
            }

            .logo-wrapper {
                padding: 15px 0;
            }

            .logo-main {
                font-size: 42px;
                letter-spacing: 2px;
            }

            .nav-icon {
                width: 38px;
                height: 38px;
            }

            .nav-icon svg {
                width: 18px;
                height: 18px;
            }

            .menu-toggle {
                padding: 15px 8px;
            }

            .menu-toggle span {
                width: 28px;
                height: 2.5px;
            }

            .final-cta h1 {
                font-size: 2rem;
            }

            .final-cta p {
                font-size: 1.1rem;
            }

            .overlay-text {
                font-size: 1.5rem;
            }

            .hero-text-overlay h1,
            .slide-2-hero h1, .slide-3-hero h1, .slide-4-hero h1 {
                font-size: var(--lora-size-large);
            }

            .hero-text-overlay p {
                font-size: 1rem;
            }
        }

        @media (max-width: 480px) {
            .hero-text-overlay,
            .slide-2-hero, .slide-3-hero, .slide-4-hero {
                width: 90% !important;
                max-width: 90vw;
            }

            .hero-text-overlay h1,
            .slide-2-hero h1, .slide-3-hero h1, .slide-4-hero h1 {
                font-size: 2.2rem !important;
                line-height: 1.2 !important;
                margin-bottom: 1rem !important;
            }

            .slide-2-hero p, .slide-3-hero p, .slide-4-hero p {
                font-size: 0.9rem;
            }

            .scroll-indicator {
                bottom: 1.5rem;
            }

            .scroll-line {
                height: 60px;
            }
            .nav-header {
                min-width: 95vw;
                padding: 0 1.5rem;
            }

            .care-letter {
                font-size: 8px;
            }

            .logo-main {
                font-size: 32px;
                letter-spacing: 1.5px;
            }

            .nav-right {
                gap: 8px;
            }

            .nav-icon {
                width: 36px;
                height: 36px;
            }

            .nav-icon svg {
                width: 16px;
                height: 16px;
            }

            .menu-toggle span {
                width: 24px;
            }
        }