@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('fonts/plusjakartasans_regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('fonts/plusjakartasans_italic.ttf') format('truetype');
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('fonts/plusjakartasans_light.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('fonts/plusjakartasans_medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('fonts/plusjakartasans_semibold.ttf') format('truetype');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('fonts/plusjakartasans_bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('fonts/plusjakartasans_extrabold.ttf') format('truetype');
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

/* ===== Material 3 Green color theme ===== */
:root {
    /* Primary Colors - Sage/Lime Green Material You Theme */
    --md-primary: #9CB686;
    --md-primary-container: #E8F5E9;
    --md-on-primary: #1B3A1B;
    --md-on-primary-container: #1B5E20;

    /* Secondary Colors - Muted Green/Olive */
    --md-secondary: #7CB342;
    --md-secondary-container: #F1F8E9;
    --md-on-secondary: #FFFFFF;

    /* Tertiary - Sage/Forest */
    --md-tertiary: #6B8E6B;
    --md-tertiary-container: #E0F2E0;

    /* Surface Colors - Dark with green undertone */
    --md-surface: #121612;
    --md-surface-dim: #0E120E;
    --md-surface-bright: #1A201A;
    --md-surface-container: #161A16;
    --md-surface-container-low: #121612;
    --md-surface-container-high: #1E241E;
    --md-surface-container-highest: #282E28;

    /* On Surface - Light sage tones */
    --md-on-surface: #E8F0E8;
    --md-on-surface-variant: #C5D4C5;
    --md-outline: #8BA88B;
    --md-outline-variant: #3D4D3D;

    /* Gradients - Material You Green */
    --gradient-primary: linear-gradient(135deg, #7CB342 0%, #9CB686 50%, #AED581 100%);
    --gradient-secondary: linear-gradient(135deg, #9CB686 0%, #C5E1A5 100%);
    --gradient-accent: linear-gradient(135deg, #558B2F 0%, #7CB342 50%, #9CB686 100%);
    --gradient-surface: linear-gradient(180deg, var(--md-surface) 0%, var(--md-surface-dim) 100%);
    --gradient-card: linear-gradient(145deg, rgba(200, 230, 200, 0.05) 0%, rgba(200, 230, 200, 0.02) 100%);

    /* Expressive Color Palette - Green Theme */
    --color-purple: #7CB342;
    --color-pink: #9CB686;
    --color-magenta: #AED581;
    --color-blue: #66BB6A;
    --color-cyan: #81C784;
    --color-teal: #4CAF50;
    --color-green: #8BC34A;
    --color-orange: #9CCC65;
    --color-red: #7CB342;

    /* Typography */
    --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;

    /* Border Radius - Expressive (more rounded) */
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(124, 179, 66, 0.4);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    background: var(--md-surface);
    color: var(--md-on-surface);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ===== Particles Background ===== */
/* Showing dot particles floating in the background */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite ease-in-out;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }

    25% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.6;
    }

    50% {
        transform: translateY(-200px) translateX(-30px);
        opacity: 0.3;
    }

    75% {
        transform: translateY(-100px) translateX(-50px);
        opacity: 0.6;
    }
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: var(--transition-normal);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(13, 13, 15, 0.8);
    border-bottom: 1px solid transparent;
}

.nav.scrolled {
    background: rgba(13, 13, 15, 0.95);
    border-bottom: 1px solid var(--md-outline-variant);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
}

.nav-logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-links a {
    color: var(--md-on-surface-variant);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: var(--space-sm) 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
}

.nav-links a:hover {
    color: var(--md-on-surface);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--gradient-primary);
    color: var(--md-on-primary);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.nav-toggle {
    display: none;
    color: var(--md-on-surface);
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--md-surface-container);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-lg);
    z-index: 999;
    flex-direction: column;
    gap: var(--space-md);
    border-bottom: 1px solid var(--md-outline-variant);
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition-normal);
}

.mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav a {
    color: var(--md-on-surface-variant);
    font-weight: 500;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.mobile-nav a:hover {
    background: var(--md-surface-container-high);
    color: var(--md-on-surface);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: var(--space-4xl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-gradient {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 100%;
    height: 150%;
    background: radial-gradient(ellipse at center, rgba(124, 179, 66, 0.2) 0%, transparent 60%);
    animation: pulse 8s infinite ease-in-out;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: float-orb 20s infinite ease-in-out;
}

.hero-orb-1 {
    top: 20%;
    left: 10%;
    width: 400px;
    height: 400px;
    background: rgba(124, 179, 66, 0.35);
    animation-delay: 0s;
}

.hero-orb-2 {
    bottom: 20%;
    right: 10%;
    width: 300px;
    height: 300px;
    background: rgba(156, 182, 134, 0.3);
    animation-delay: -5s;
}

.hero-orb-3 {
    top: 50%;
    left: 50%;
    width: 500px;
    height: 500px;
    background: rgba(129, 199, 132, 0.2);
    animation-delay: -10s;
}

@keyframes float-orb {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(30px, -30px) rotate(5deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(-5deg);
    }

    75% {
        transform: translate(20px, 30px) rotate(3deg);
    }
}

.hero-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--md-surface-container-high);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--md-on-surface-variant);
    width: fit-content;
}

.hero-badge .material-icons-round {
    font-size: 1rem;
    color: var(--color-pink);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--md-on-surface-variant);
    line-height: 1.7;
    max-width: 540px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg) 0;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--md-outline-variant);
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--md-on-primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.btn-secondary {
    background: var(--md-surface-container-high);
    color: var(--md-on-surface);
    border: 1px solid var(--md-outline-variant);
}

.btn-secondary:hover {
    background: var(--md-surface-container-highest);
    border-color: var(--md-outline);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--md-on-surface);
    border: 2px solid var(--md-outline);
}

.btn-outline:hover {
    border-color: var(--color-pink);
    color: var(--color-pink);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.1rem;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-frame {
    position: relative;
    width: 280px;
    background: #1a1a1a;
    border-radius: 40px;
    padding: 12px;
    box-shadow:
        0 50px 100px -20px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.05);
    animation: phone-float 6s ease-in-out infinite;
}

@keyframes phone-float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(1deg);
    }
}

.phone-notch {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 28px;
    background: #000;
    border-radius: 20px;
    z-index: 10;
}

.phone-screen {
    border-radius: 28px;
    overflow: hidden;
    width: 100%;
}

.floating-cards {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--md-surface-container-high);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    animation: card-float 8s ease-in-out infinite;
}

.floating-card .material-icons-round {
    font-size: 1.25rem;
}

.card-1 {
    top: 10%;
    right: 0;
    animation-delay: 0s;
}

.card-1 .material-icons-round {
    color: var(--color-purple);
}

.card-2 {
    bottom: 30%;
    left: -20px;
    animation-delay: -2s;
}

.card-2 .material-icons-round {
    color: var(--color-pink);
}

.card-3 {
    bottom: 10%;
    right: 10%;
    animation-delay: -4s;
}

.card-3 .material-icons-round {
    color: var(--color-cyan);
}

@keyframes card-float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-15px) rotate(3deg);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    color: var(--md-on-surface-variant);
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* ===== Sections Base ===== */
section {
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    background: var(--gradient-primary);
    color: var(--md-on-primary);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--md-on-surface-variant);
    line-height: 1.7;
}

/* ===== Features Section ===== */
.features {
    padding: var(--space-4xl) 0;
    background: var(--md-surface-dim);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    background: var(--gradient-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--md-outline);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-large {
    grid-column: span 2;
}

.feature-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.feature-icon-wrapper .material-icons-round {
    font-size: 1.75rem;
    color: white;
}

.gradient-purple {
    background: linear-gradient(135deg, #7CB342, #9CB686);
}

.gradient-blue {
    background: linear-gradient(135deg, #66BB6A, #81C784);
}

.gradient-teal {
    background: linear-gradient(135deg, #4CAF50, #66BB6A);
}

.gradient-orange {
    background: linear-gradient(135deg, #9CCC65, #AED581);
}

.gradient-pink {
    background: linear-gradient(135deg, #8BC34A, #C5E1A5);
}

.gradient-green {
    background: linear-gradient(135deg, #558B2F, #7CB342);
}

.gradient-cyan {
    background: linear-gradient(135deg, #81C784, #A5D6A7);
}

.gradient-red {
    background: linear-gradient(135deg, #689F38, #8BC34A);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--md-on-surface-variant);
    line-height: 1.6;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.tag {
    padding: var(--space-xs) var(--space-sm);
    background: var(--md-surface-container-highest);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--md-on-surface-variant);
}

.features-extra {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-2xl);
}

.extra-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--md-surface-container);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.extra-feature:hover {
    background: var(--md-surface-container-high);
    border-color: var(--md-outline);
}

.extra-feature .material-icons-round {
    font-size: 1.25rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Screenshots Section ===== */
.screenshots {
    padding: var(--space-4xl) 0;
    background: var(--md-surface);
}

.screenshot-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
}

.screenshot-tab {
    padding: var(--space-sm) var(--space-xl);
    background: var(--md-surface-container);
    color: var(--md-on-surface-variant);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.screenshot-tab:hover {
    background: var(--md-surface-container-high);
}

.screenshot-tab.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.screenshot-gallery.hidden {
    display: none;
}

.screenshot-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-normal);
}

.screenshot-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.8) 100%);
    opacity: 0;
    transition: var(--transition-fast);
    z-index: 1;
}

.screenshot-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.screenshot-item:hover::before {
    opacity: 1;
}

.screenshot-item img {
    width: 100%;
    aspect-ratio: 9/19;
    object-fit: cover;
    transition: var(--transition-slow);
}

.screenshot-label {
    position: absolute;
    bottom: var(--space-md);
    left: var(--space-md);
    right: var(--space-md);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 2;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition-fast);
}

.screenshot-item:hover .screenshot-label {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Tech Stack Section ===== */
.tech {
    padding: var(--space-4xl) 0;
    background: var(--md-surface-dim);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.tech-card {
    background: var(--gradient-card);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    transition: var(--transition-normal);
}

.tech-card:hover {
    transform: translateY(-8px);
    border-color: var(--md-outline);
    box-shadow: var(--shadow-md);
}

.tech-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--md-surface-container-highest);
}

.tech-icon img {
    width: 40px;
    height: 40px;
}

.tech-icon .material-icons-round {
    font-size: 2rem;
}

.tech-icon.compose .material-icons-round {
    color: var(--color-cyan);
}

.tech-icon.exo .material-icons-round {
    color: var(--color-orange);
}

.tech-icon.room .material-icons-round {
    color: var(--color-green);
}

.tech-icon.coil .material-icons-round {
    color: var(--color-purple);
}

.tech-icon.native .material-icons-round {
    color: var(--color-red);
}

.tech-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.tech-card p {
    font-size: 0.9rem;
    color: var(--md-on-surface-variant);
}

.architecture {
    margin-top: var(--space-3xl);
    background: var(--md-surface-container);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    overflow: hidden;
}

.architecture h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.structure-tree {
    overflow-x: auto;
}

.structure-tree pre {
    background: var(--md-surface-container-low);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.875rem;
    line-height: 1.8;
    overflow-x: auto;
}

.structure-tree .folder {
    color: var(--color-cyan);
    font-weight: 600;
}

.structure-tree .file {
    color: var(--color-pink);
}

.structure-tree .comment {
    color: var(--md-outline);
}

/* ===== Changelog Section ===== */
.changelog {
    padding: var(--space-4xl) 0;
    background: var(--md-surface);
}

.changelog-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.changelog-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--md-outline-variant);
}

.changelog-item {
    display: flex;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
    position: relative;
}

.changelog-marker {
    position: relative;
    z-index: 1;
}

.version-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 40px;
    background: var(--md-surface-container);
    border: 2px solid var(--md-outline-variant);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 1rem;
}

.version-badge.latest {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.changelog-content {
    flex: 1;
    background: var(--gradient-card);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.changelog-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.changelog-content ul {
    list-style: none;
}

.changelog-content li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    color: var(--md-on-surface-variant);
    font-size: 0.95rem;
}

.changelog-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.changelog-content li strong {
    color: var(--md-on-surface);
}

/* ===== Getting Started Section ===== */
.getting-started {
    padding: var(--space-4xl) 0;
    background: var(--md-surface-dim);
}

.start-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-xl);
}

.start-card {
    background: var(--gradient-card);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
}

.start-card.download {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.start-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.start-icon .material-icons-round {
    font-size: 2.5rem;
    color: white;
}

.start-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.start-card p {
    color: var(--md-on-surface-variant);
    margin-bottom: var(--space-lg);
}

.code-block {
    background: var(--md-surface-container-low);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-lg);
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--md-surface-container);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--md-on-surface-variant);
}

.copy-btn {
    color: var(--md-on-surface-variant);
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.copy-btn:hover {
    background: var(--md-surface-container-high);
    color: var(--md-on-surface);
}

.code-block pre {
    padding: var(--space-lg);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.875rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-block .comment {
    color: var(--md-outline);
}

.requirements h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.requirements ul {
    list-style: none;
}

.requirements li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-xs);
    color: var(--md-on-surface-variant);
    font-size: 0.95rem;
}

.requirements li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-green);
    font-weight: 700;
}

/* Download Info */
.download-info {
    margin-top: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--md-on-surface-variant);
    font-size: 0.9rem;
}

.info-item .material-icons-round {
    font-size: 1.25rem;
    color: var(--md-primary);
}

/* Build Steps */
.build-step {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--md-outline-variant);
}

.build-step:first-of-type {
    margin-top: var(--space-md);
    padding-top: 0;
    border-top: none;
}

.step-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    color: var(--md-on-primary);
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.step-header h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.step-content {
    padding-left: 0;
}

.step-content p {
    color: var(--md-on-surface-variant);
    margin-bottom: var(--space-sm);
}

.step-list {
    list-style: none;
    padding-left: 0;
    counter-reset: step-counter;
}

.step-list li {
    position: relative;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-sm);
    color: var(--md-on-surface-variant);
    font-size: 0.95rem;
    counter-increment: step-counter;
}

.step-list li::before {
    content: counter(step-counter, lower-alpha) ".";
    position: absolute;
    left: 0;
    color: var(--md-primary);
    font-weight: 600;
}

.step-list li code {
    background: var(--md-surface-container-highest);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85em;
}

.step-note {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: var(--md-surface-container);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--md-on-surface-variant);
}

.step-note .material-icons-round {
    font-size: 1.25rem;
    color: var(--md-secondary);
    flex-shrink: 0;
}

.step-note a {
    color: var(--md-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.step-note a:hover {
    color: var(--md-secondary);
}

/* Troubleshooting */
.troubleshoot-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.troubleshoot-item {
    padding: var(--space-md);
    background: var(--md-surface-container);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--md-primary);
}

.troubleshoot-item strong {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--md-on-surface);
    font-size: 0.95rem;
}

.troubleshoot-item p {
    margin: 0;
    color: var(--md-on-surface-variant);
    font-size: 0.9rem;
}

.troubleshoot-item code {
    background: var(--md-surface-container-highest);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85em;
}

/* ===== CTA Section ===== */
.cta {
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
}

.cta-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.cta-orb-1 {
    top: -20%;
    left: 20%;
    width: 400px;
    height: 400px;
    background: rgba(124, 179, 66, 0.35);
}

.cta-orb-2 {
    bottom: -20%;
    right: 20%;
    width: 300px;
    height: 300px;
    background: rgba(156, 182, 134, 0.3);
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-md);
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--md-on-surface-variant);
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background: var(--md-surface-container-low);
    border-top: 1px solid var(--md-outline-variant);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
}

.footer-brand img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.footer-links {
    display: flex;
    gap: var(--space-xl);
}

.footer-links a {
    color: var(--md-on-surface-variant);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--md-on-surface);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--md-outline-variant);
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
}

.footer-bottom p:first-child {
    margin-bottom: var(--space-xs);
}

.heart {
    color: var(--color-red);
}

/* ===== Lightbox ===== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: var(--space-xl);
    right: var(--space-xl);
    color: white;
    background: var(--md-surface-container);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    background: var(--md-surface-container-high);
    transform: scale(1.1);
}

.lightbox img {
    max-width: 90%;
    max-height: 90vh;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        align-items: center;
    }

    .hero-visual {
        order: -1;
    }

    .phone-frame {
        width: 240px;
    }

    .floating-cards {
        display: none;
    }

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

    .feature-large {
        grid-column: span 2;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .mobile-nav {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding: 120px 0 var(--space-3xl);
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

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

    .feature-large {
        grid-column: span 1;
    }

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

    .changelog-timeline::before {
        left: 20px;
    }

    .version-badge {
        width: 50px;
        font-size: 0.875rem;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    /* Getting Started Responsive */
    .start-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .start-card {
        padding: var(--space-lg);
    }

    .start-icon {
        width: 64px;
        height: 64px;
    }

    .start-icon .material-icons-round {
        font-size: 2rem;
    }

    .start-card h3 {
        font-size: 1.25rem;
    }

    .code-block pre {
        font-size: 0.8rem;
        padding: var(--space-md);
    }

    .code-block pre code {
        white-space: pre-wrap;
        word-break: break-word;
    }
}

@media (max-width: 480px) {
    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .screenshot-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }
}

/* ===== Animations (AOS-like) ===== */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"] {
    transform: translateY(40px);
}

[data-aos="fade-right"] {
    transform: translateX(-40px);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translate(0) scale(1);
}