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

:root {
    --primary-color: #5B9BD5;
    --primary-dark: #4A7BA7;
    --primary-light: #7DB3E0;
    --secondary-color: #99AABB;
    --accent-color: #DDEEFF;
    --text-color: #0f172a;
    --text-light: #475569;
    --text-muted: #94a3b8;
    --bg-color: #ffffff;
    --bg-light: #f8fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --hover-color: #4A7BA7;
    --warning-color: #f59e0b;
    --success-color: #10b981;
    --logo-bg-dark: #1a1f2e;
    --logo-bg-teal: #1e3a3f;
    --logo-bg-purple: #2d1f3d;
    --logo-gradient: linear-gradient(135deg, #1a1f2e 0%, #1e3a3f 50%, #2d1f3d 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --gradient-primary: linear-gradient(135deg, #5B9BD5 0%, #7DB3E0 100%);
    --gradient-secondary: linear-gradient(135deg, #DDEEFF 0%, #99AABB 100%);
    --gradient-hero: linear-gradient(135deg, #5B9BD5 0%, #7DB3E0 50%, #DDEEFF 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    background: var(--logo-gradient);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

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

main {
    background: transparent;
}

/* Header */
header {
    background: rgba(26, 31, 46, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(221, 238, 255, 0.2);
    color: white;
    padding: 1.25rem 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: white;
    transition: transform 0.2s ease;
}

.logo-container:hover {
    transform: scale(1.05);
    text-decoration: none;
}

.logo-container:hover .logo-text {
    text-decoration: none;
}

.logo-container img {
    height: 56px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    object-fit: contain;
}

.logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    white-space: nowrap;
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    position: relative;
    font-size: 0.95rem;
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    background: rgba(221, 238, 255, 0.1);
    color: var(--accent-color);
}

.nav-links a:hover::before {
    width: 60%;
}

/* Hero Section */
.hero {
    background: var(--logo-gradient);
    color: white;
    padding: 6rem 0 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
    animation: fadeInUp 0.6s ease-out;
}

.hero p {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 400;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background-color: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

/* Warning Banner */
.warning-banner {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-left: 4px solid var(--warning-color);
    padding: 1.25rem 1.5rem;
    margin: 2rem 0;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.warning-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--warning-color);
    border-radius: 12px 0 0 12px;
}

.warning-banner strong {
    color: var(--warning-color);
    font-weight: 700;
}

/* Content Sections */
.content-section {
    padding: 2rem 0;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    margin: 1.5rem 0;
    padding: 2rem;
}

/* Compact Content Sections - for homepage specific sections */
.content-section-compact {
    padding: 1.5rem 0;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 1.5rem 2rem;
    margin: 1.5rem 0;
    border: 1px solid rgba(221, 238, 255, 0.3);
}

.content-section-compact h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 1rem;
    margin-top: 0;
    padding-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.section-icon {
    font-size: 1.5em;
    line-height: 1;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
}

.content-section-compact h2::before {
    content: '';
    width: 4px;
    height: 28px;
    background: var(--gradient-primary);
    border-radius: 2px;
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(99, 102, 241, 0.3);
}

.content-section-compact h2::after {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    box-shadow: 0 2px 4px rgba(99, 102, 241, 0.3);
}

.content-section-compact p {
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.content-section-compact ul,
.content-section-compact ol {
    margin-left: 1.5rem;
    margin-bottom: 0.75rem;
    margin-top: 0.5rem;
}

.content-section-compact li {
    margin-bottom: 0.4rem;
    line-height: 1.6;
}

.content-section h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    padding-bottom: 1rem;
}

.content-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.content-section h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-top: 1rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.content-section p {
    margin-bottom: 1.25rem;
    color: var(--text-light);
    font-size: 1.0625rem;
    line-height: 1.8;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2.5rem 0;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(221, 238, 255, 0.3);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.card:hover::before {
    transform: scaleX(1);
}

.card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
    font-size: 1.25rem;
}

.card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.card a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.card a::after {
    content: '→';
    transition: transform 0.3s ease;
}

.card a:hover {
    color: var(--primary-dark);
    gap: 0.75rem;
}

.card a:hover::after {
    transform: translateX(4px);
}

/* Code Blocks */
code {
    background: transparent;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--primary-dark);
    font-weight: 500;
    border: none;
}

pre {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: #ffffff;
    padding: 1.5rem;
    border-radius: 12px;
    overflow-x: auto;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

pre::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 12px 12px 0 0;
}

pre code {
    background-color: transparent;
    color: #ffffff;
    padding: 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Lists */
ul, ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.logo-container:hover,
.logo-container:hover * {
    text-decoration: none !important;
}

.external-link {
    position: relative;
}

.external-link::after {
    content: " ↗";
    font-size: 0.85em;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.external-link:hover::after {
    opacity: 1;
    transform: translate(2px, -2px);
}

/* Footer */
footer {
    background: rgba(26, 31, 46, 0.95);
    border-top: 1px solid rgba(221, 238, 255, 0.2);
    padding: 3rem 0 2rem;
    margin-top: 5rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-color);
    background: rgba(221, 238, 255, 0.1);
    text-decoration: none;
}

/* Table */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 2rem 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

th, td {
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
    font-weight: 700;
    color: var(--primary-color);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover {
    background-color: var(--bg-light);
    transition: background-color 0.2s ease;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 1rem 0;
    }
    
    nav {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav-links {
        gap: 0.25rem;
        width: 100%;
    }
    
    .nav-links a {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .hero {
        padding: 4rem 0 3rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .content-section {
        padding: 2.5rem 0;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
    
    pre {
        padding: 1rem;
        font-size: 0.85rem;
    }
    
    .content-section-compact {
        padding: 1.25rem 1.5rem;
        margin: 1rem 0;
    }
    
    .content-section-compact h2 {
        font-size: 1.5rem;
    }
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.badge-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.badge-warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
    border: 1px solid #fcd34d;
}

.badge:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}