/* Material 3 Expressive Design System for AppTime */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* Material 3 Expressive Color Palette */
    --primary: hsl(265, 85%, 58%);
    --primary-light: hsl(265, 85%, 68%);
    --primary-dark: hsl(265, 85%, 48%);
    --secondary: hsl(190, 85%, 55%);
    --secondary-light: hsl(190, 85%, 65%);
    --tertiary: hsl(320, 75%, 60%);
    --accent: hsl(45, 100%, 60%);

    /* Surface Colors */
    --surface: hsl(260, 20%, 8%);
    --surface-container: hsl(260, 18%, 12%);
    --surface-container-high: hsl(260, 16%, 16%);
    --surface-container-highest: hsl(260, 14%, 20%);
    --surface-dim: hsl(260, 22%, 6%);
    --surface-bright: hsl(260, 15%, 24%);

    /* Text Colors */
    --on-surface: hsl(260, 10%, 95%);
    --on-surface-variant: hsl(260, 8%, 75%);
    --on-primary: hsl(0, 0%, 100%);
    --on-secondary: hsl(0, 0%, 10%);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-accent: linear-gradient(135deg, var(--tertiary) 0%, var(--primary) 100%);
    --gradient-hero: linear-gradient(180deg, var(--surface) 0%, var(--surface-container) 100%);

    /* 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-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    --glow-primary: 0 0 40px rgba(147, 51, 234, 0.4);
    --glow-secondary: 0 0 40px rgba(34, 211, 238, 0.4);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 9999px;

    /* Typography */
    --font-display: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Light Mode Theme */
body.light-mode {
    --surface: hsl(260, 20%, 98%);
    --surface-container: hsl(260, 18%, 95%);
    --surface-container-high: hsl(260, 16%, 92%);
    --surface-container-highest: hsl(260, 14%, 88%);
    --surface-dim: hsl(260, 22%, 90%);
    --surface-bright: hsl(260, 15%, 100%);

    --on-surface: hsl(260, 20%, 10%);
    --on-surface-variant: hsl(260, 8%, 35%);
    --on-primary: hsl(0, 0%, 100%);
    --on-secondary: hsl(0, 0%, 10%);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
}


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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--surface);
    color: var(--on-surface);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animated Background */
.animated-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--gradient-primary);
    top: -10%;
    right: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--gradient-accent);
    bottom: -10%;
    left: -10%;
    animation-delay: 5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--tertiary) 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {

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

    33% {
        transform: translate(30px, -30px) scale(1.1);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(20, 16, 28, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

nav.scrolled {
    padding: var(--spacing-sm) var(--spacing-xl);
    background: rgba(20, 16, 28, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--glow-primary);
}

.logo-icon-img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    box-shadow: var(--glow-primary);
    transition: transform var(--transition-base);
}

.logo:hover .logo-icon-img {
    transform: scale(1.1) rotate(5deg);
}


.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-links a {
    color: var(--on-surface-variant);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

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

/* Theme Toggle Button */
.theme-toggle {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--surface-container-high);
    border: 2px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.25rem;
    margin-left: var(--spacing-md);
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    background: var(--surface-container-highest);
    border-color: var(--primary);
    box-shadow: var(--glow-primary);
}

.theme-toggle:active {
    transform: scale(0.95);
}


/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--glow-primary);
}

.btn-secondary {
    background: var(--surface-container-high);
    color: var(--on-surface);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    position: relative;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text {
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--surface-container-high);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(34, 211, 238, 0.3);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--on-surface) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero p {
    font-size: 1.25rem;
    color: var(--on-surface-variant);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.download-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeInUp 1s ease-out 1s both;
}

.download-stat {
    display: flex;
    flex-direction: column;
}

.download-stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-stat-label {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

/* Hero Image */
.hero-image {
    position: relative;
    animation: fadeInRight 1s ease-out 0.5s both;
}

.phone-mockup {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    animation: float-gentle 6s infinite ease-in-out;
}

.phone-frame {
    background: var(--surface-container);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-xl), var(--glow-primary);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.phone-screen {
    background: var(--gradient-hero);
    border-radius: var(--radius-lg);
    aspect-ratio: 9/19.5;
    overflow: hidden;
    position: relative;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@keyframes float-gentle {

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

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

/* Features Section */
.features {
    padding: var(--spacing-3xl) var(--spacing-xl);
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--surface-container-high);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--tertiary);
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(244, 114, 182, 0.3);
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--on-surface) 0%, var(--secondary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    line-height: 1.8;
}

.features-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--surface-container);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--glow-primary);
    transition: transform var(--transition-bounce);
}

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

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--on-surface);
}

.feature-card p {
    color: var(--on-surface-variant);
    line-height: 1.7;
}

/* Download Section */
.download {
    padding: var(--spacing-3xl) var(--spacing-xl);
    position: relative;
}

.download-container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--surface-container);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.download-container::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.1;
    border-radius: 50%;
    filter: blur(60px);
}

.download-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.download-content h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.download-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.platform-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--surface-container-high);
    border-radius: var(--radius-md);
    border: 2px solid rgba(255, 255, 255, 0.1);
    text-decoration: none;
    color: var(--on-surface);
    transition: all var(--transition-base);
    min-width: 200px;
}

.platform-btn:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    background: var(--surface-container-highest);
}

.platform-icon {
    font-size: 2.5rem;
}

.platform-text {
    text-align: left;
}

.platform-text small {
    display: block;
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

.platform-text strong {
    display: block;
    font-size: 1.125rem;
    font-weight: 700;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    margin-top: var(--spacing-xs);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-coming-soon {
    background: rgba(147, 51, 234, 0.2);
    color: var(--primary-light);
    border: 1px solid rgba(147, 51, 234, 0.4);
}

.status-alpha {
    background: rgba(34, 211, 238, 0.2);
    color: var(--secondary-light);
    border: 1px solid rgba(34, 211, 238, 0.4);
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(34, 211, 238, 0.3);
    }

    50% {
        box-shadow: 0 0 20px rgba(34, 211, 238, 0.6);
    }
}

/* Platform Button States */
.platform-btn-active {
    border-color: var(--secondary);
    box-shadow: var(--glow-secondary);
}

.platform-btn-active:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: var(--secondary-light);
    box-shadow: var(--shadow-xl), var(--glow-secondary);
}

.platform-btn-disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.platform-btn-disabled:hover {
    transform: none;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

.download-note {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}


/* Footer */
footer {
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: var(--surface-container);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.footer-links a {
    color: var(--on-surface-variant);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--surface-container-high);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--on-surface);
    text-decoration: none;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--gradient-primary);
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

    .download-info {
        justify-content: center;
    }

    .hero h1 {
        font-size: 3rem;
    }
}

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

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }

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

    .download-container {
        padding: var(--spacing-xl);
    }

    .download-buttons {
        flex-direction: column;
    }

    .platform-btn {
        width: 100%;
    }
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}