/* GORA - AI Life Assistant Styles */

:root {
    /* Colors */
    --background: #000000;
    --surface-1: #0A0A0A;
    --surface-2: #111111;
    --surface-3: #1A1A1A;
    --text-primary: #FFFFFF;
    --text-secondary: #888888;
    --text-muted: #666666;
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);

    /* Typography */
    --font-primary: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Effects */
    --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);

    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 120px 24px;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Subtle Grid Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(255,255,255,0.03) 1px, transparent 0);
    background-size: 32px 32px;
    pointer-events: none;
    z-index: -1;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.premium-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background 0.3s ease;
}

.premium-nav.scrolled {
    background: rgba(0, 0, 0, 0.98);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.05em;
    transition: color 0.3s ease;
}

.nav-logo:hover {
    color: var(--text-secondary);
}

.nav-logo img {
    width: 40px;
    height: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    transition: color 0.2s ease;
    letter-spacing: 0.02em;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-primary);
}

.nav-cta {
    display: flex;
    align-items: center;
}

.nav-btn-started {
    padding: 0.6rem 1.5rem;
    background: var(--text-primary);
    color: var(--background);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    letter-spacing: 0.02em;
}

.nav-btn-started:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-subtle);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
    gap: 5px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--surface-1);
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-menu-content a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1.1rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    text-align: center;
    border: 1px solid var(--border);
}

.mobile-menu-content a:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.mobile-menu-cta {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.mobile-menu-cta a {
    background: var(--text-primary);
    color: var(--background);
    font-weight: 600;
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-cta {
        display: none;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .nav-container {
        height: 60px;
    }
    .mobile-menu {
        top: 60px;
    }
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    line-height: 1;
}

.hero-content .tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
}

.hero-content .description {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    background: var(--text-primary);
    color: var(--background);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s ease;
    letter-spacing: 0.02em;
    border: none;
    cursor: pointer;
}

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

/* Sections */
section {
    padding: var(--section-padding);
}

.section-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Gora AI Section */
.gora-ai-section {
    background: var(--surface-1);
}

.ai-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.ai-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.ai-content > p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.chat-mockup {
    max-width: 500px;
    margin: 0 auto;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: left;
}

.chat-message {
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Features Grid */
.features-section {
    background: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.feature-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Screenshot Section */
.screenshot-section {
    background: var(--background);
}

.screenshot-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.screenshot-content,
.screenshot-visual {
    display: flex;
    flex-direction: column;
}

.screenshot-visual {
    align-items: center;
}

.phone-mockup {
    width: 100%;
    max-width: 320px;
    border-radius: 40px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.phone-screen {
    width: 100%;
    aspect-ratio: 9/19.5;
    background: var(--surface-1);
    overflow: hidden;
}

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

.glass-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.glass-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.glass-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Premium Section */
.premium-section {
    background: var(--surface-1);
    padding: var(--section-padding);
}

.premium-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    text-align: center;
}

/* Footer */
.minimal-footer {
    background: var(--background);
    border-top: 1px solid var(--border);
    padding: 4rem 2rem 2rem;
    text-align: center;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

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

.btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    background: var(--surface-2);
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    margin-bottom: 2rem;
}

.btn-download:hover {
    background: var(--surface-3);
    border-color: var(--border-hover);
}

.social-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.social-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s ease;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 20px;
}

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

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 992px) {
    .screenshot-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .screenshot-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px 24px;
    }

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

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

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

/* Utilities */
.hidden { display: none !important; }
.visible { display: block !important; }

/* Loading Spinner */
.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}