/* LaNova AI - Main Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;800&display=swap');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #0A192F; /* Deep Navy Blue */
    color: #E6F1FF; /* Light Blue-White */
    line-height: 1.6;
}

/* Color Variables */
:root {
    --primary-navy: #0A192F;
    --secondary-navy: #112240;
    --accent-teal: #64FFDA;
    --accent-teal-light: #84FFE4;
    --accent-orange: #FF6B35;
    --accent-warm-teal: #4ECDC4;
    --text-light: #E6F1FF;
    --text-gray: #8892B0;
    --text-dark-gray: #495670;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-light);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
}

p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-teal);
}

/* Utility Classes */
.accent-color { color: var(--accent-teal); }
.bg-accent { background-color: var(--accent-teal); }
.border-accent { border-color: var(--accent-teal); }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

.section-padding {
    padding: 6rem 1rem;
}

@media (min-width: 768px) {
    .section-padding {
        padding: 8rem 2rem;
    }
}

/* Grid System */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3 {
        grid-template-columns: 1fr;
    }
}

/* Header Styles */
.site-header {
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

.site-header.scrolled {
    background-color: rgba(10, 25, 47, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-light);
}

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--primary-navy);
        padding: 2rem;
        gap: 1rem;
    }
}

.nav-link {
    color: var(--text-gray);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-teal);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent-teal);
    color: var(--primary-navy);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(100, 255, 218, 0.3);
    color: var(--primary-navy);
}

.btn-ghost {
    background-color: transparent;
    border: 2px solid var(--accent-teal);
    color: var(--accent-teal);
}

.btn-ghost:hover {
    background-color: rgba(100, 255, 218, 0.1);
    color: var(--accent-teal);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Card Styles */
.card {
    background-color: var(--secondary-navy);
    border-radius: 0.5rem;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--secondary-navy) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%2364FFDA" stroke-width="0.1" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--text-light), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Form Styles */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: 500;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--text-dark-gray);
    border-radius: 0.375rem;
    background-color: var(--secondary-navy);
    color: var(--text-light);
    font-family: inherit;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent-teal);
    box-shadow: 0 0 0 3px rgba(100, 255, 218, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer Styles */
.site-footer {
    background-color: var(--secondary-navy);
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-gray);
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--accent-teal);
}

.footer-bottom {
    border-top: 1px solid var(--text-dark-gray);
    padding-top: 1rem;
    text-align: center;
    color: var(--text-gray);
    font-size: 0.875rem;
}

/* Utility Classes */
.hidden { display: none; }
.visible { display: block; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }

/* Animation Classes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-delay-1 { animation-delay: 0.1s; animation-fill-mode: both; }
.animate-delay-2 { animation-delay: 0.2s; animation-fill-mode: both; }
.animate-delay-3 { animation-delay: 0.3s; animation-fill-mode: both; }

/* Video Styles */
.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
    background-color: var(--secondary-navy);
}

/* Video responsive aspect ratio (16:9) */
.video-container::before {
    content: '';
    display: block;
    padding-top: 56.25%; /* 16:9 aspect ratio */
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Video controls styling */
.video-container video::-webkit-media-controls-panel {
    background-color: rgba(10, 25, 47, 0.8);
}

.video-container video::-webkit-media-controls-play-button,
.video-container video::-webkit-media-controls-mute-button,
.video-container video::-webkit-media-controls-fullscreen-button {
    color: var(--accent-teal);
}

@media (max-width: 768px) {
    .video-container {
        border-radius: 8px;
        margin: 0 1rem;
    }
}

/* Video Background Styles */
.hero-video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.hero-video-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}

.hero-video-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(10, 25, 47, 0.8) 0%, 
        rgba(17, 34, 64, 0.6) 50%, 
        rgba(10, 25, 47, 0.8) 100%);
    z-index: 2;
}