:root {
    /* Renkler */
    --color-primary: #5EADB5;
    --color-primary-dark: #4d9ca4;
    --color-secondary: #E8B4A0;
    --color-accent-green: #A0C4B8;
    --color-accent-purple: #C4A0D8;
    --color-accent-gold: #D8C4A0;
    
    --color-text-primary: #111213;
    --color-text-secondary: rgba(17, 18, 19, 0.6);
    --color-text-muted: rgba(17, 18, 19, 0.5);
    
    --color-background: #fff;
    --color-background-alt: #f5f5f7;
    --color-background-warm: #F5F3EF;
    --color-border: #E8E4DE;
    
    /* Tipografi */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 80px;
    --spacing-3xl: 120px;
    
    /* Border Radius */
    --radius-sm: 10px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 10px 30px rgba(17, 18, 19, 0.08);
    --shadow-md: 0 20px 40px rgba(17, 18, 19, 0.12);
    --shadow-lg: 0 25px 60px rgba(17, 18, 19, 0.15);
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-text-primary);
    line-height: 1.6;
    background: var(--color-background);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.nav__links {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav__link {
    color: var(--color-text-primary);
    font-size: 14px;
    transition: opacity var(--transition-fast);
}

.nav__link:hover {
    opacity: 0.6;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    margin-top: 60px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--color-background);
}

.hero__background {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(245, 243, 239, 0.3), #fff, #fff);
}

.hero__shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
}

.hero__shape--1 {
    top: 80px;
    right: 15%;
    width: 300px;
    height: 300px;
    background: rgba(94, 173, 181, 0.08);
    animation: float1 8s ease-in-out infinite;
}

.hero__shape--2 {
    bottom: 80px;
    left: 10%;
    width: 400px;
    height: 400px;
    background: rgba(232, 228, 222, 0.5);
    animation: float2 10s ease-in-out infinite;
}

.hero__content {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    margin: 0 auto;
    padding: 120px 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero__badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    background: rgba(94, 173, 181, 0.1);
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero__title {
    font-size: 64px;
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out both;
}

.hero__title .highlight {
    color: var(--color-primary);
}

.hero__description {
    font-size: 20px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 520px;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero__cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 18px 32px;
    background: var(--color-text-primary);
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(17, 18, 19, 0.15);
}

.hero__cta-arrow {
    font-size: 20px;
    transition: transform var(--transition-fast);
}

.hero__cta:hover .hero__cta-arrow {
    transform: translateX(4px);
}

/* Hero Visual */
.hero__visual {
    position: relative;
    animation: fadeInRight 0.8s ease-out 0.3s both;
}

.hero__device {
    position: relative;
    background: linear-gradient(135deg, var(--color-background-warm), #fff);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.hero__device-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    display: block;
}

.hero__floating-card {
    position: absolute;
    right: -24px;
    top: 25%;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: floatCard 4s ease-in-out infinite;
}

.hero__card-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(94, 173, 181, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.hero__card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.hero__card-subtitle {
    font-size: 12px;
    color: var(--color-text-muted);
}

.hero__play-btn {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(17, 18, 19, 0.15);
    transition: all var(--transition-fast);
}

.hero__play-btn:hover {
    transform: translateX(-50%) scale(1.1);
    background: #fff;
}

.hero__play-btn svg {
    width: 24px;
    height: 24px;
    color: var(--color-text-primary);
}

.hero__decorative-bg {
    position: absolute;
    bottom: -32px;
    right: -32px;
    width: 100%;
    height: 100%;
    background: rgba(94, 173, 181, 0.1);
    border-radius: var(--radius-xl);
    z-index: -1;
}

/* Scroll Indicator */
.hero__scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 40px;
    border: 2px solid rgba(17, 18, 19, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 8px;
    animation: bounce 2s ease-in-out infinite;
}

.hero__scroll-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(17, 18, 19, 0.4);
    animation: scrollDot 2s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: var(--color-background);
    overflow: hidden;
}

.section-divider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-border), transparent);
}

.about__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.about__header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--spacing-2xl);
    animation: fadeInUp 0.6s ease-out both;
}

.section-label {
    display: inline-block;
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.about__title {
    font-size: 48px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
    margin-bottom: 24px;
}

.about__title .highlight {
    color: var(--color-primary);
}

.about__description {
    font-size: 20px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Feature Cards */
.about__cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.about__card {
    position: relative;
    height: 100%;
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    background: linear-gradient(to bottom, rgba(245, 243, 239, 0.5), transparent);
    border: 1px solid rgba(232, 228, 222, 0.5);
    transition: all var(--transition-medium);
    animation: fadeInUp 0.6s ease-out both;
}

.about__card:nth-child(1) { animation-delay: 0s; }
.about__card:nth-child(2) { animation-delay: 0.15s; }
.about__card:nth-child(3) { animation-delay: 0.3s; }

.about__card:hover {
    border-color: rgba(94, 173, 181, 0.3);
    box-shadow: 0 20px 60px rgba(94, 173, 181, 0.08);
    transform: translateY(-4px);
}

.about__card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: rgba(94, 173, 181, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-fast);
}

.about__card:hover .about__card-icon {
    background: rgba(94, 173, 181, 0.2);
}

.about__card-icon svg {
    color: var(--color-primary);
}

.about__card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 12px;
}

.about__card p {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Visual Element */
.about__visual {
    position: relative;
    animation: scaleIn 0.8s ease-out both;
    animation-delay: 0.4s;
}

.about__visual-container {
    position: relative;
    aspect-ratio: 21 / 9;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-background-warm), var(--color-border));
}

.about__visual-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    mix-blend-mode: multiply;
}

.about__visual-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.8), transparent, transparent);
}

/* --------------------------------------------------------------------------
   Features Section
   -------------------------------------------------------------------------- */
.features {
    padding: var(--spacing-3xl) 0;
    background: rgba(245, 243, 239, 0.3);
    position: relative;
}

.features__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.features__header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--spacing-2xl);
    animation: fadeInUp 0.6s ease-out both;
}

.features__title {
    font-size: 48px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
    margin-bottom: 24px;
}

.features__title .highlight {
    color: var(--color-primary);
}

.features__description {
    font-size: 20px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

/* Feature Box */
.feature-box {
    position: relative;
    background: #fff;
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    border: 1px solid rgba(232, 228, 222, 0.5);
    transition: all var(--transition-smooth);
    cursor: pointer;
    overflow: hidden;
    animation: fadeInUp 0.5s ease-out both;
}

.feature-box:nth-child(1) { animation-delay: 0s; }
.feature-box:nth-child(2) { animation-delay: 0.1s; }
.feature-box:nth-child(3) { animation-delay: 0.2s; }
.feature-box:nth-child(4) { animation-delay: 0.3s; }
.feature-box:nth-child(5) { animation-delay: 0.4s; }

.feature-box:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.08);
    border-color: transparent;
}

.feature-box__gradient {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--transition-medium);
    pointer-events: none;
}

.feature-box[data-color="#5EADB5"]:hover .feature-box__gradient {
    background: linear-gradient(135deg, rgba(94, 173, 181, 0.08) 0%, transparent 60%);
    opacity: 1;
}

.feature-box[data-color="#E8B4A0"]:hover .feature-box__gradient {
    background: linear-gradient(135deg, rgba(232, 180, 160, 0.08) 0%, transparent 60%);
    opacity: 1;
}

.feature-box[data-color="#A0C4B8"]:hover .feature-box__gradient {
    background: linear-gradient(135deg, rgba(160, 196, 184, 0.08) 0%, transparent 60%);
    opacity: 1;
}

.feature-box[data-color="#C4A0D8"]:hover .feature-box__gradient {
    background: linear-gradient(135deg, rgba(196, 160, 216, 0.08) 0%, transparent 60%);
    opacity: 1;
}

.feature-box[data-color="#D8C4A0"]:hover .feature-box__gradient {
    background: linear-gradient(135deg, rgba(216, 196, 160, 0.08) 0%, transparent 60%);
    opacity: 1;
}

.feature-box__content {
    position: relative;
    z-index: 10;
}

.feature-box__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-fast);
}

.feature-box:hover .feature-box__icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-box h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    transition: color var(--transition-fast);
}

.feature-box p {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.feature-box__arrow {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-fast);
}

.feature-box:hover .feature-box__arrow {
    opacity: 1;
    transform: translateX(0);
}

.feature-box__arrow svg {
    width: 16px;
    height: 16px;
}

/* --------------------------------------------------------------------------
   Demo Section
   -------------------------------------------------------------------------- */
.demo {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: var(--color-background);
    overflow: hidden;
}

.demo__bg-shape {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    filter: blur(80px);
}

.demo__bg-shape--left {
    top: 50%;
    left: 0;
    transform: translate(-50%, -50%);
    background: rgba(94, 173, 181, 0.05);
}

.demo__bg-shape--right {
    top: 50%;
    right: 0;
    transform: translate(50%, -50%);
    background: rgba(232, 228, 222, 0.5);
}

.demo__container {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.demo__header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 64px;
    animation: fadeInUp 0.6s ease-out both;
}

.demo__title {
    font-size: 48px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
    margin-bottom: 24px;
}

.demo__title .highlight {
    color: var(--color-primary);
}

.demo__description {
    font-size: 20px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.demo__wrapper {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    animation: scaleIn 0.8s ease-out both;
    animation-delay: 0.2s;
}

.demo__video-container {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--color-text-primary);
    box-shadow: 0 25px 60px rgba(17, 18, 19, 0.2);
}

.demo__thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.demo__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(17, 18, 19, 0.6), transparent, transparent);
}

.demo__play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-fast);
    z-index: 10;
}

.demo__play-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.demo__play-btn svg {
    color: var(--color-text-primary);
    margin-left: 4px;
}

.demo__play-btn.is-playing {
    opacity: 0;
    pointer-events: none;
}

/* Demo Controls */
.demo__controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(to top, rgba(17, 18, 19, 0.9), transparent);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-fast);
}

.demo__controls.is-active {
    opacity: 1;
    transform: translateY(0);
}

.demo__controls-inner {
    display: flex;
    align-items: center;
    gap: 16px;
}

.demo__control-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
    color: white;
}

.demo__control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.demo__progress-bar {
    flex: 1;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
}

.demo__progress-fill {
    height: 100%;
    background: var(--color-primary);
    width: 0%;
    transition: width 0.3s linear;
}

.demo__progress-fill.is-animating {
    width: 35%;
    transition: width 10s linear;
}

.demo__time {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    white-space: nowrap;
}

/* Demo Info Cards */
.demo__info-card {
    position: absolute;
    background: white;
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(232, 228, 222, 0.5);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: floatCard 6s ease-in-out infinite;
}

.demo__info-card--left {
    top: 25%;
    left: -16px;
    animation-delay: 0.4s;
}

.demo__info-card--right {
    bottom: 25%;
    right: -16px;
    animation-delay: 0.6s;
    animation-direction: reverse;
}

.demo__info-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(94, 173, 181, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.demo__info-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.demo__info-subtitle {
    font-size: 12px;
    color: var(--color-text-muted);
}

.demo__cta {
    text-align: center;
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.6s ease-out both;
    animation-delay: 0.4s;
}

.demo__cta-btn {
    padding: 18px 32px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.demo__cta-btn:hover {
    background: var(--color-primary-dark);
    box-shadow: 0 20px 40px rgba(94, 173, 181, 0.2);
    transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   Testimonials Section
   -------------------------------------------------------------------------- */
.testimonials {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(to bottom, #fff, rgba(245, 243, 239, 0.3));
    overflow: hidden;
}

.testimonials__bg-gradient {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(94, 173, 181, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.testimonials__container {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.testimonials__header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--spacing-2xl);
    animation: fadeInUp 0.6s ease-out both;
}

.testimonials__title {
    font-size: 48px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
    margin-bottom: 24px;
}

.testimonials__title .highlight {
    color: var(--color-primary);
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Testimonial Card */
.testimonial-card {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    border: 1px solid rgba(232, 228, 222, 0.5);
    transition: all var(--transition-smooth);
    animation: fadeInUp 0.6s ease-out both;
}

.testimonial-card:nth-child(1) { animation-delay: 0.1s; }
.testimonial-card:nth-child(2) { animation-delay: 0.2s; }
.testimonial-card:nth-child(3) { animation-delay: 0.3s; }

.testimonial-card--featured {
    background: linear-gradient(135deg, rgba(94, 173, 181, 0.03) 0%, white 100%);
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(17, 18, 19, 0.08);
    border-color: rgba(94, 173, 181, 0.3);
}

.testimonial-card__quote-icon {
    font-size: 64px;
    line-height: 1;
    color: rgba(94, 173, 181, 0.2);
    font-family: Georgia, serif;
    margin-bottom: 16px;
}

.testimonial-card__quote {
    font-size: 18px;
    color: var(--color-text-primary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial-card__footer {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.testimonial-card__avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 18px;
    flex-shrink: 0;
}

.testimonial-card__info {
    flex: 1;
}

.testimonial-card__name {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.testimonial-card__position {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.testimonial-card__location {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: var(--color-text-muted);
}

.testimonial-card__rating {
    display: flex;
    gap: 4px;
}

.testimonial-card__star {
    color: #FFB800;
    font-size: 16px;
}

/* Testimonials Navigation */
.testimonials__nav {
    display: flex;
    justify-content: center;
    gap: 12px;
    animation: fadeInUp 0.6s ease-out both;
    animation-delay: 0.4s;
}

.testimonials__nav-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: rgba(17, 18, 19, 0.2);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.testimonials__nav-dot:hover {
    background: rgba(17, 18, 19, 0.4);
}

.testimonials__nav-dot.is-active {
    background: var(--color-primary);
    width: 32px;
    border-radius: 5px;
}

/* --------------------------------------------------------------------------
   Books Section
   -------------------------------------------------------------------------- */
.books {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: var(--color-background);
    overflow: hidden;
}

.books__divider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-border), transparent);
}

.books__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.books__header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 64px;
    animation: fadeInUp 0.6s ease-out both;
}

.books__title {
    font-size: 48px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
    margin-bottom: 24px;
}

.books__title .highlight {
    color: var(--color-primary);
}

.books__description {
    font-size: 20px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Coming Soon Card */
.books__coming-soon {
    max-width: 700px;
    margin: 0 auto;
    background: linear-gradient(to bottom, rgba(245, 243, 239, 0.5), transparent);
    border: 1px solid rgba(232, 228, 222, 0.5);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    animation: fadeInUp 0.6s ease-out both;
    animation-delay: 0.2s;
}

.books__coming-soon-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    background: rgba(94, 173, 181, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.books__coming-soon-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 16px;
}

.books__coming-soon-text {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 480px;
    margin: 0 auto var(--spacing-lg);
}

.books__form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 480px;
    margin: 0 auto;
}

.books__input {
    padding: 16px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 16px;
    transition: all var(--transition-fast);
    background: white;
}

.books__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(94, 173, 181, 0.1);
}

.books__submit-btn {
    padding: 16px 24px;
    background: var(--color-text-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 500;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.books__submit-btn:hover {
    background: rgba(17, 18, 19, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(17, 18, 19, 0.15);
}

/* Books Grid */
.books__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: 64px;
    animation: fadeInUp 0.6s ease-out both;
    animation-delay: 0.4s;
}

/* Book Card */
.book-card {
    aspect-ratio: 3 / 4;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.book-card__cover {
    position: relative;
    flex: 1;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(94, 173, 181, 0.3);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.book-card__cover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(94, 173, 181, 0.4);
}

.book-card__cover-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
}

.book-card__cover-content {
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    text-align: center;
}

.book-card__icon {
    font-size: 48px;
    margin-bottom: 16px;
    animation: float 3s ease-in-out infinite;
}

.book-card__title {
    font-size: 24px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.book-card__authors {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.book-card__author {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.book-card__badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-primary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.book-card__cta {
    padding: 12px 20px;
    background: var(--color-text-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.book-card__cta:hover {
    background: rgba(17, 18, 19, 0.9);
    transform: translateY(-2px);
}

/* Book Placeholder */
.books__placeholder {
    aspect-ratio: 3 / 4;
    border-radius: var(--radius-lg);
    background: rgba(245, 243, 239, 0.5);
    border: 2px dashed var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.books__placeholder:hover {
    border-style: solid;
    background: rgba(245, 243, 239, 0.8);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background: var(--color-background-alt);
    padding: 60px 30px;
    text-align: center;
}

.footer__logo {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer__title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 10px;
}

.footer__tagline {
    font-size: 21px;
    color: #6e6e73;
    margin-bottom: 30px;
}

.footer__social {
    display: flex;
    gap: 30px;
    justify-content: center;
    margin-top: 20px;
}

.footer__social-link {
    color: var(--color-text-primary);
    font-size: 17px;
    transition: opacity var(--transition-fast);
}

.footer__social-link:hover {
    opacity: 0.6;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float1 {
    0%, 100% { transform: scale(1) translateY(0); opacity: 0.3; }
    50% { transform: scale(1.2) translateY(-20px); opacity: 0.5; }
}

@keyframes float2 {
    0%, 100% { transform: scale(1.2) translateY(0); opacity: 0.4; }
    50% { transform: scale(1) translateY(20px); opacity: 0.6; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

@keyframes scrollDot {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(12px); }
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero__content {
        grid-template-columns: 1fr;
        gap: 60px;
        padding: 80px 30px;
    }

    .hero__title {
        font-size: 48px;
    }

    .hero__floating-card {
        right: 10px;
        padding: 12px;
    }

    .about__title,
    .features__title,
    .demo__title,
    .testimonials__title,
    .books__title {
        font-size: 40px;
    }

    .about__cards {
        grid-template-columns: 1fr;
    }

    .features__grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .testimonials__grid {
        grid-template-columns: 1fr;
    }

    .testimonial-card--featured {
        order: -1;
    }

    .books__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero__title {
        font-size: 36px;
    }

    .hero__description {
        font-size: 18px;
    }

    .about__title,
    .features__title,
    .demo__title,
    .testimonials__title,
    .books__title {
        font-size: 32px;
    }

    .about__description,
    .features__description,
    .demo__description,
    .books__description {
        font-size: 18px;
    }

    .hero__device {
        padding: 24px;
    }

    .hero__floating-card {
        display: none;
    }

    .hero__shape--1,
    .hero__shape--2 {
        width: 200px;
        height: 200px;
    }

    .about__visual-container {
        aspect-ratio: 16 / 9;
    }

    .about__cards {
        gap: var(--spacing-md);
    }

    .features__grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-box {
        padding: var(--spacing-md);
    }

    .demo__info-card {
        display: none;
    }

    .demo__play-btn {
        width: 72px;
        height: 72px;
    }

    .demo__controls {
        padding: 16px;
    }

    .demo__controls-inner {
        gap: 12px;
    }

    .demo__time {
        display: none;
    }

    .testimonial-card {
        padding: 32px 24px;
    }

    .testimonial-card__quote-icon {
        font-size: 48px;
    }

    .testimonial-card__quote {
        font-size: 16px;
    }

    .testimonial-card__avatar {
        width: 48px;
        height: 48px;
        font-size: 16px;
    }

    .books__coming-soon {
        padding: 32px 24px;
    }

    .books__coming-soon-icon {
        width: 64px;
        height: 64px;
    }

    .books__coming-soon-title {
        font-size: 24px;
    }

    .books__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.highlight {
    color: var(--color-primary);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}