/*
 * InSync Landing Page - Enhanced Styles
 * Modern, impressive design with animations and visual effects
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Colors */
    --app-background: #0A0118;
    --glass-background: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-tertiary: rgba(255, 255, 255, 0.4);

    /* Gradients */
    --gradient-pink: #FF53C0;
    --gradient-cyan: #60FFCA;

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

    /* Border radius */
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 24px;

    /* Container */
    --container-max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--app-background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

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

.gradient-mesh {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 83, 192, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(96, 255, 202, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(255, 83, 192, 0.1) 0%, transparent 50%);
    animation: mesh-shift 20s ease-in-out infinite;
}

@keyframes mesh-shift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -30px) scale(1.05); }
    66% { transform: translate(-30px, 50px) scale(0.95); }
}

.particles {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(2px 2px at 20% 30%, white, transparent),
        radial-gradient(2px 2px at 60% 70%, white, transparent),
        radial-gradient(1px 1px at 50% 50%, white, transparent),
        radial-gradient(1px 1px at 80% 10%, white, transparent),
        radial-gradient(2px 2px at 90% 60%, white, transparent),
        radial-gradient(1px 1px at 33% 80%, white, transparent),
        radial-gradient(1px 1px at 15% 90%, white, transparent);
    background-size: 200% 200%;
    background-position: 0% 0%;
    opacity: 0.15;
    animation: particles-drift 40s linear infinite;
}

@keyframes particles-drift {
    to { background-position: 100% 100%; }
}

/* ==================== Container ==================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==================== Navigation ==================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    background: rgba(10, 1, 24, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-gradient {
    background: linear-gradient(135deg, var(--gradient-pink), var(--gradient-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-pink), var(--gradient-cyan));
    transition: width 0.3s ease;
}

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

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

/* ==================== Hero Section ==================== */
.hero {
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl) 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-text {
    z-index: 10;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, var(--gradient-pink), var(--gradient-cyan));
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.hero-title {
    font-size: 5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--gradient-pink), var(--gradient-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.gradient-text-animated {
    background: linear-gradient(135deg, var(--gradient-pink), var(--gradient-cyan), var(--gradient-pink));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease-in-out infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 550px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.125rem 2.25rem;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-pink), var(--gradient-cyan));
    color: white;
    box-shadow: 0 10px 30px rgba(255, 83, 192, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 83, 192, 0.5);
}

.btn-large {
    padding: 1.375rem 2.75rem;
    font-size: 1.125rem;
}

.apple-icon {
    width: 24px;
    height: 24px;
}

.version-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.version-info svg {
    color: var(--gradient-cyan);
}

/* Hero Phone Mockup */
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup-wrapper {
    position: relative;
}

.phone-glow {
    position: absolute;
    inset: -40px;
    background: radial-gradient(circle, rgba(255, 83, 192, 0.4) 0%, transparent 70%);
    filter: blur(60px);
    animation: glow-pulse 3s ease-in-out infinite;
    z-index: -1;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.phone-mockup {
    width: 320px;
    border-radius: 40px;
    background: var(--glass-background);
    border: 1px solid var(--glass-border);
    padding: 12px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.6);
    backdrop-filter: blur(18px);
    position: relative;
    overflow: hidden;
}

.phone-mockup::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 42px;
    background: linear-gradient(135deg,
        rgba(255,83,192,.55),
        rgba(96,255,202,.35),
        rgba(255,83,192,.35)
    );
    opacity: .35;
    filter: blur(18px);
    pointer-events: none;
}

.phone-screen {
    width: 100%;
    border-radius: 28px;
    overflow: hidden;
    background: #000;
    position: relative;
}

.hero-screenshot {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    animation: fade-in-up 0.6s ease-out 1s both;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--text-tertiary);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 3px;
    height: 8px;
    background: var(--text-tertiary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: wheel-scroll 1.5s ease-in-out infinite;
}

@keyframes wheel-scroll {
    0% { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(12px); opacity: 0; }
}

/* ==================== Stats Section ==================== */
.stats-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 83, 192, 0.03) 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--glass-background);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 83, 192, 0.3);
    box-shadow: 0 20px 40px rgba(255, 83, 192, 0.1);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--gradient-pink), var(--gradient-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
}

/* ==================== Features Section ==================== */
.features {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* Bento Grid Layout */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 280px;
    gap: 1.5rem;
}

.bento-card {
    background: var(--glass-background);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    backdrop-filter: blur(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.bento-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 83, 192, 0.05), rgba(96, 255, 202, 0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bento-card:hover::before {
    opacity: 1;
}

.bento-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 83, 192, 0.3);
    box-shadow: 0 25px 50px rgba(255, 83, 192, 0.15);
}

.bento-card.large {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-card.medium {
    grid-column: span 2;
}

.bento-card.small {
    grid-column: span 1;
}

.bento-content {
    position: relative;
    z-index: 1;
}

.feature-icon-large {
    width: 70px;
    height: 70px;
    margin-bottom: var(--spacing-sm);
    color: var(--gradient-pink);
}

.feature-icon-large svg {
    width: 100%;
    height: 100%;
}

.feature-icon {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-sm);
    color: var(--gradient-pink);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.bento-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.bento-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.bento-visual {
    flex: 1;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    position: relative;
}

.map-visualization {
    width: 100%;
    height: 200px;
    background: radial-gradient(circle at center, rgba(96, 255, 202, 0.1) 0%, transparent 70%);
    border-radius: var(--radius-sm);
    position: relative;
}

.pulse-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.pulse-dot::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-cyan);
    border-radius: 50%;
}

.pulse-dot::after {
    content: '';
    position: absolute;
    inset: -10px;
    border: 2px solid var(--gradient-cyan);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(0.5); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

/* ==================== Gallery Section ==================== */
.gallery {
    padding: var(--spacing-xl) 0;
}

.cyber-gallery {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.75rem;
    align-items: start;
}

.cyber-card {
    margin: 0;
    transform-style: preserve-3d;
    transition: transform .25s ease, filter .25s ease;
}

.cyber-phone {
    position: relative;
    border-radius: 30px;
    padding: 10px;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.10);
    backdrop-filter: blur(18px);
    box-shadow: 0 22px 70px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.12);
    overflow: hidden;
}

.cyber-phone::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 32px;
    background: linear-gradient(135deg,
        rgba(255,83,192,.55),
        rgba(96,255,202,.35),
        rgba(255,83,192,.35)
    );
    opacity: .35;
    filter: blur(18px);
    pointer-events: none;
}

.cyber-phone::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 30px;
    background: linear-gradient(120deg,
        transparent 0%,
        rgba(255,255,255,.12) 35%,
        transparent 60%
    );
    transform: translateX(-60%) translateY(-10%) rotate(8deg);
    opacity: 0;
    transition: opacity .25s ease, transform .6s ease;
    pointer-events: none;
    mix-blend-mode: screen;
}

.cyber-screen {
    border-radius: 22px;
    overflow: hidden;
    background: #000;
    position: relative;
}

.cyber-screen::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 10%, rgba(255,83,192,.10), transparent 40%),
        radial-gradient(circle at 80% 90%, rgba(96,255,202,.10), transparent 45%),
        repeating-linear-gradient(
            0deg,
            rgba(255,255,255,.04),
            rgba(255,255,255,.04) 1px,
            transparent 1px,
            transparent 3px
        );
    opacity: .22;
    pointer-events: none;
    mix-blend-mode: overlay;
}

.cyber-img {
    width: 100%;
    height: auto;
    aspect-ratio: 1320 / 2868;
    display: block;
    object-fit: contain;
    background: #000;
}

.cyber-card figcaption {
    margin-top: .85rem;
    text-align: center;
    font-size: .95rem;
    font-weight: 700;
    letter-spacing: .2px;
    color: rgba(255,255,255,.72);
}

.cyber-card:hover {
    transform: translateY(-10px) scale(1.02);
    filter: drop-shadow(0 18px 40px rgba(255,83,192,.12))
            drop-shadow(0 18px 40px rgba(96,255,202,.10));
}

.cyber-card:hover .cyber-phone::after {
    opacity: 1;
    transform: translateX(45%) translateY(5%) rotate(8deg);
}

/* ==================== Download CTA Section ==================== */
.download-cta {
    position: relative;
    overflow: hidden;
    padding: calc(var(--spacing-xl) * 1.5) 0;
}

.download-cta::before {
    content: "";
    position: absolute;
    inset: -35%;
    background:
        radial-gradient(circle at 50% 35%, rgba(255, 83, 192, 0.22), transparent 60%),
        radial-gradient(circle at 20% 80%, rgba(96, 255, 202, 0.16), transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.download-cta .container {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
}

.cta-content {
    width: min(980px, 100%);
    text-align: center;
    padding: 4rem 3rem;
    border-radius: 28px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    backdrop-filter: blur(18px);
    box-shadow: 0 30px 90px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.12);
}

.cta-content h2 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* ==================== Footer ==================== */
.footer {
    background: var(--glass-background);
    border-top: 1px solid var(--glass-border);
    padding: var(--spacing-lg) 0 var(--spacing-md) 0;
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.footer-brand p {
    color: var(--text-secondary);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.footer-column h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
    color: var(--text-tertiary);
}

/* ==================== Animations ==================== */
.fade-in-up {
    animation: fade-in-up 0.6s ease-out both;
}

.fade-in-up-delay {
    animation: fade-in-up 0.6s ease-out 0.2s both;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bento-card.large {
        grid-column: span 2;
        grid-row: span 1;
    }

    .bento-card.medium {
        grid-column: span 1;
    }
}

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-image {
        order: -1;
    }

    .phone-mockup {
        width: 280px;
    }

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

    .section-title {
        font-size: 2.5rem;
    }

    .cyber-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

    .phone-mockup {
        width: 240px;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }

    .bento-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }

    .bento-card.large,
    .bento-card.medium,
    .bento-card.small {
        grid-column: span 1;
        grid-row: span 1;
    }

    .cyber-gallery {
        grid-template-columns: 1fr;
    }
}