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

:root {
    --bg-primary: #0a0518;
    --bg-secondary: #120b28;
    --accent-primary: #8a2be2;
    --accent-secondary: #00d2ff;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-glow: rgba(138, 43, 226, 0.15);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

/* Background Gradients */
body::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    top: -200px;
    left: -200px;
    background: radial-gradient(circle, rgba(138, 43, 226, 0.2) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    bottom: -200px;
    right: -200px;
    background: radial-gradient(circle, rgba(0, 210, 255, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

/* Header & Navigation */
header {
    background: rgba(10, 5, 24, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo-dot {
    width: 10px;
    height: 10px;
    background-color: var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-primary);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

nav a:hover, nav a.active {
    color: var(--text-primary);
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
}

/* Hero Section */
.hero {
    padding: 10rem 2rem 6rem;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-primary) 20%, var(--accent-primary) 60%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    font-weight: 400;
}

/* Buttons */
.btn-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, #631bb5 100%);
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(138, 43, 226, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(138, 43, 226, 0.5);
}

.btn-secondary {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

/* App Mockup Section */
.mockup-container {
    max-width: 1000px;
    margin: 0 auto 6rem;
    padding: 0 2rem;
}

.glass-mockup {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--card-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    aspect-ratio: 16/9;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
}

.glass-mockup::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

.mockup-screen {
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: #06030e;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    border: 1px solid rgba(255,255,255,0.03);
}

.mockup-icon {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Features Grid */
.features-section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 4rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(138, 43, 226, 0.3);
    box-shadow: 0 10px 30px var(--card-glow);
}

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(138, 43, 226, 0.1);
    color: var(--accent-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(138, 43, 226, 0.25);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Legal & Text Layouts (Privacy & Disclaimer Pages) */
.legal-container {
    max-width: 800px;
    margin: 9rem auto 6rem;
    padding: 0 2rem;
}

.legal-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 3rem 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.legal-card h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    text-align: left;
}

.last-updated {
    color: var(--accent-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 2.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.legal-content h2 {
    font-size: 1.4rem;
    margin: 2.5rem 0 1rem;
    font-weight: 700;
    border-left: 3px solid var(--accent-primary);
    padding-left: 0.75rem;
}

.legal-content p, .legal-content ul {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
    line-height: 1.7;
}

.legal-content ul {
    padding-left: 1.5rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
}

.legal-content a {
    color: var(--accent-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.legal-content a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    border-top: 1px solid var(--card-border);
    background: #05020c;
    padding: 4rem 2rem;
    text-align: center;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-logo {
    display: inline-flex;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    list-style: none;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

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

.copyright {
    color: #4a5568;
    font-size: 0.85rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }

    nav ul {
        display: none; /* simple responsive fallback */
    }
    
    .legal-card {
        padding: 2rem 1.5rem;
    }
}

/* Language Selector Dropdown */
.lang-selector {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    transition: var(--transition-smooth);
}

.lang-selector:hover {
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* RTL Layout support */
.rtl-layout {
    direction: rtl;
    text-align: right;
}

.rtl-layout h1, .rtl-layout h2, .rtl-layout h3, .rtl-layout p, .rtl-layout li {
    text-align: right;
}

.rtl-layout .nav-container {
    flex-direction: row-reverse;
}

.rtl-layout nav ul {
    flex-direction: row-reverse;
    gap: 2rem;
}

.rtl-layout .logo {
    flex-direction: row-reverse;
}

.rtl-layout .legal-content h2 {
    border-left: none;
    border-right: 3px solid var(--accent-primary);
    padding-left: 0;
    padding-right: 0.75rem;
}