/* Sambandh - Multi-Generational Social Platform Styles */

:root {
    /* Primary Colors */
    --primary-gradient: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 50%, #FF6B9D 100%);
    --primary: #FF6B6B;
    --primary-dark: #E85555;
    
    /* Mode Colors */
    --spark: #FF6B6B;
    --spark-light: #FFE5E5;
    --comfort: #4ECDC4;
    --comfort-light: #E5F9F7;
    --wonder: #9B59B6;
    --wonder-light: #F0E5F9;
    
    /* Neutrals */
    --bg: #0A0A0F;
    --bg-light: #12121A;
    --bg-card: #1A1A24;
    --text: #FFFFFF;
    --text-muted: #9CA3AF;
    --border: #2A2A3A;
    
    /* Spacing */
    --section-padding: 120px;
    --container-width: 1200px;
    
    /* Typography */
    --font-primary: 'Inter', 'Noto Sans Devanagari', sans-serif;
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-text {
    font-size: 20px;
    font-weight: 600;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.3);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 5% var(--section-padding);
    gap: 60px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

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

.hero-subtitle {
    font-size: 20px;
    color: var(--text-muted);
    max-width: 500px;
    margin-bottom: 40px;
}

/* Mode Switcher */
.mode-switcher {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.mode-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 16px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
    min-width: 100px;
}

.mode-btn span {
    font-size: 12px;
    opacity: 0.7;
}

.mode-btn.active[data-mode="spark"] {
    border-color: var(--spark);
    background: var(--spark-light);
    color: var(--spark);
}

.mode-btn.active[data-mode="comfort"] {
    border-color: var(--comfort);
    background: var(--comfort-light);
    color: var(--comfort);
}

.mode-btn.active[data-mode="wonder"] {
    border-color: var(--wonder);
    background: var(--wonder-light);
    color: var(--wonder);
}

/* CTA Group */
.cta-group {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text);
}

.btn-secondary:hover {
    border-color: var(--text);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* Hero Visual */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 320px;
    height: 640px;
    background: var(--bg-card);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg);
    border-radius: 32px;
    overflow: hidden;
    position: relative;
}

.screen-content {
    padding: 20px;
    height: 100%;
}

.story-ring {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    overflow-x: auto;
}

.story-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 3px solid var(--border);
    flex-shrink: 0;
}

.story-avatar.active {
    border-color: var(--spark);
    background: var(--primary-gradient);
}

.feed-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 16px;
}

.feed-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-gradient);
}

.feed-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    margin-bottom: 12px;
}

.feed-actions {
    display: flex;
    gap: 20px;
    color: var(--text-muted);
    font-size: 14px;
}

/* Problem Section */
.problem {
    padding: var(--section-padding) 5%;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 20px;
    color: var(--text-muted);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    transition: transform 0.3s;
}

.problem-card:hover {
    transform: translateY(-8px);
}

.problem-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.problem-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

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

/* Modes Section */
.modes {
    padding: var(--section-padding) 5%;
}

.modes-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.mode-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s;
}

.mode-panel:hover {
    transform: translateY(-8px);
}

.mode-header {
    padding: 32px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.mode-header.spark {
    background: var(--spark-light);
}

.mode-header.comfort {
    background: var(--comfort-light);
}

.mode-header.wonder {
    background: var(--wonder-light);
}

.mode-icon {
    font-size: 40px;
}

.mode-header h3 {
    font-size: 24px;
    margin-bottom: 4px;
}

.mode-header p {
    color: var(--text-muted);
    font-size: 14px;
}

.mode-features {
    padding: 32px;
}

.feature {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.feature:last-child {
    margin-bottom: 0;
}

.feature-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.feature h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.feature p {
    font-size: 14px;
    color: var(--text-muted);
}

/* AI Bridge Section */
.ai-bridge {
    padding: var(--section-padding) 5%;
    background: var(--bg-light);
}

.bridge-demo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.bridge-step {
    flex: 1;
    min-width: 280px;
    max-width: 320px;
}

.step-label {
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.demo-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 24px;
    border: 2px solid var(--border);
}

.demo-card.spark {
    border-color: var(--spark);
}

.demo-card.comfort {
    border-color: var(--comfort);
}

.demo-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.demo-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-gradient);
}

.demo-content p {
    margin-bottom: 12px;
    line-height: 1.6;
}

.simple-text {
    font-size: 18px;
    line-height: 1.8;
}

.demo-media {
    background: var(--bg);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
}

.voice-btn {
    background: var(--comfort);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
}

.bridge-arrow {
    font-size: 32px;
    color: var(--primary);
}

.ai-processing {
    background: var(--bg-card);
    border: 2px dashed var(--primary);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
}

.ai-badge {
    background: var(--primary-gradient);
    color: white;
    padding: 8px 16px;
    border-radius: 50px;
    font-weight: 600;
    margin-bottom: 20px;
    display: inline-block;
}

.ai-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ai-actions span {
    color: var(--text-muted);
    font-size: 14px;
}

/* Safety Section */
.safety {
    padding: var(--section-padding) 5%;
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.safety-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    transition: all 0.3s;
}

.safety-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.safety-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.safety-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.safety-card p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
}

/* CTA Section */
.cta {
    padding: var(--section-padding) 5%;
    background: var(--primary-gradient);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 40px;
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 40px;
}

.waitlist-form {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.waitlist-form input,
.waitlist-form select {
    padding: 16px 24px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    min-width: 200px;
}

.waitlist-form button {
    padding: 16px 40px;
    background: var(--bg);
    color: var(--primary);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.waitlist-form button:hover {
    transform: scale(1.05);
}

.trust-badges {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    font-size: 14px;
    opacity: 0.8;
}

/* Footer */
footer {
    padding: 60px 5%;
    background: var(--bg);
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
}

.footer-brand .logo {
    font-size: 32px;
}

.footer-brand span {
    font-size: 24px;
    font-weight: 600;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

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

.copyright {
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 968px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 120px;
    }

    .hero h1 {
        font-size: 40px;
    }

    .mode-switcher {
        justify-content: center;
    }

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

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

    .nav-links {
        display: none;
    }

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

    .section-header h2 {
        font-size: 32px;
    }

    .bridge-demo {
        flex-direction: column;
    }

    .bridge-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 32px;
    }

    .phone-mockup {
        width: 280px;
        height: 560px;
    }

    .waitlist-form {
        flex-direction: column;
        align-items: stretch;
    }

    .waitlist-form input,
    .waitlist-form select,
    .waitlist-form button {
        width: 100%;
    }
}