/* Multimodal AI Business Site - Unique Design Stylesheet */

:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #f59e0b;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --gradient-1: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-2: linear-gradient(135deg, #7c3aed 0%, #f59e0b 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--light-bg);
    font-size: 16px;
}

/* Header Styles */
header {
    background: var(--gradient-1);
    color: white;
    padding: 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background: rgba(0, 0, 0, 0.2);
    padding: 10px 0;
    font-size: 0.875rem;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header-main {
    padding: 20px 0;
}

.header-main .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    text-decoration: none;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* Navigation */
nav {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding: 10px 0;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    padding: 10px 16px;
    display: block;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    background: var(--gradient-1);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('images/hero.jpg') center/cover no-repeat;
    opacity: 0.15;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.95;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: #dc7609;
}

/* Main Content Layout */
.main-wrapper {
    display: flex;
    gap: 30px;
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.main-content {
    flex: 1;
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

/* Sidebar (for non-TOP pages) */
.sidebar {
    width: 300px;
    flex-shrink: 0;
}

.sidebar-section {
    background: white;
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-md);
}

.sidebar-section h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

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

.sidebar-section ul li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.sidebar-section ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.sidebar-section a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s ease;
}

.sidebar-section a:hover {
    color: var(--primary-color);
}

/* Ad Space Placeholder */
.ad-space {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 2px dashed var(--border-color);
    padding: 40px 20px;
    text-align: center;
    border-radius: 12px;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Full Width Layout (TOP page) */
.full-width-content {
    width: 100%;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 25px;
}

h2 {
    font-size: 2rem;
    margin-top: 40px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--primary-color);
}

h3 {
    font-size: 1.5rem;
    margin-top: 30px;
    color: var(--secondary-color);
}

h4 {
    font-size: 1.25rem;
    margin-top: 25px;
}

p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--text-dark);
}

/* Lists */
ul, ol {
    margin-bottom: 20px;
    padding-left: 30px;
}

li {
    margin-bottom: 10px;
    line-height: 1.7;
}

/* Links */
a {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

/* News Section */
.news-section {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
}

.news-section h2 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--primary-color);
}

.news-list {
    list-style: none;
    padding: 0;
}

.news-item {
    padding: 20px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-left: 5px solid var(--accent-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.news-date {
    font-weight: 700;
    color: var(--secondary-color);
    margin-right: 15px;
    font-size: 0.95rem;
}

.news-content {
    color: var(--text-dark);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* Image Styles */
.content-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 30px 0;
    box-shadow: var(--shadow-lg);
}

/* Code Blocks */
pre {
    background: var(--dark-bg);
    color: #e2e8f0;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 25px 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

code {
    background: #e2e8f0;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--secondary-color);
}

pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
    box-shadow: var(--shadow-md);
    border-radius: 8px;
    overflow: hidden;
}

thead {
    background: var(--gradient-1);
    color: white;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background: #f1f5f9;
}

/* Footer */
footer {
    background: var(--dark-bg);
    color: white;
    padding: 50px 0 20px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--accent-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 25px;
    text-align: center;
    color: #94a3b8;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 900px) {
    .nav-menu {
        max-width: 900px;
        justify-content: center;
    }
}

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

    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        border-radius: 0;
        padding: 15px 20px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .main-wrapper {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        order: 2;
    }

    .main-content {
        order: 1;
        padding: 25px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

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

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 1rem;
    }

    .main-content {
        padding: 20px;
    }

    .sidebar-section {
        padding: 20px;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.highlight {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: white;
}