:root {
    --color-bg: #0f1218;
    --color-bg-alt: #161b24;
    --color-bg-card: #1c2230;
    --color-primary: #38bdf8;
    --color-primary-dark: #0ea5e9;
    --color-accent: #22d3ee;
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-border: #2d3748;
    --color-success: #10b981;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-display: 'Outfit', sans-serif;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.5);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 16px;
    min-height: 100vh;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

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

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.3;
    color: #fff;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); font-weight: 500; }

#page-loader {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.4s ease;
}

.loader-spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(15, 18, 24, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-mark {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--color-bg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    width: 42px; height: 42px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.2rem;
    color: #fff;
}

.main-nav ul {
    display: flex;
    gap: 0.25rem;
    list-style: none;
}

.main-nav a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: #fff;
    background: var(--color-bg-card);
}

.burger-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.burger-menu span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
    border-radius: 2px;
}

.burger-menu.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.burger-menu.active span:nth-child(2) { opacity: 0; }
.burger-menu.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

main { padding-top: 72px; }

.hero {
    position: relative;
    min-height: 540px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.25;
    filter: blur(2px);
}

.hero-content {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
    padding: 4rem 2rem;
    z-index: 1;
}

.hero-content h1 { margin-bottom: 1.25rem; }

.hero-content p {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 640px;
    line-height: 1.8;
}

.hero-meta {
    margin-top: 1.5rem;
    display: flex;
    gap: 1.5rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section-title {
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--color-bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-image {
    height: 220px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.card:hover .card-image img { transform: scale(1.05); }

.card-body {
    padding: 1.75rem;
}

.card-body h3 {
    margin-bottom: 0.75rem;
}

.card-body p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.card-link {
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.card-link::after {
    content: '\2192';
    transition: transform var(--transition);
}

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

.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 4rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
}

.split-section.reverse { direction: rtl; }
.split-section.reverse > * { direction: ltr; }

.split-image {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.split-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.split-text h2 { margin-bottom: 1.25rem; }

.split-text p {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.info-box {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
}

.info-box h3 {
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.info-box p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.article-content {
    max-width: 820px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.article-content h1 { margin-bottom: 1rem; }

.article-meta {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.article-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.article-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.article-content p {
    margin-bottom: 1.25rem;
    color: var(--color-text-muted);
}

.article-content ul, .article-content ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
    color: var(--color-text-muted);
}

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

.article-content img {
    border-radius: var(--radius);
    margin: 2rem 0;
    border: 1px solid var(--color-border);
}

.article-content a { text-decoration: underline; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
}

.data-table th, .data-table td {
    padding: 0.85rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    background: var(--color-bg-card);
    color: #fff;
    font-weight: 600;
    font-family: var(--font-heading);
}

.data-table tr:hover td { background: rgba(56, 189, 248, 0.04); }

.contact-form {
    max-width: 560px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

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

.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font-body);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
}

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

.btn-secondary {
    background: transparent;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

.site-footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: #fff;
}

.footer-col p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

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

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

.footer-col ul a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-col ul a:hover { color: var(--color-primary); }

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

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

.cookie-banner {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 2rem;
    z-index: 9998;
    box-shadow: var(--shadow-lg);
}

.cookie-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.cookie-inner p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    flex: 1;
}

.cookie-buttons { display: flex; gap: 0.75rem; }

.page-content {
    max-width: 820px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.page-content h1 { margin-bottom: 1.5rem; }
.page-content h2 { margin-top: 2rem; margin-bottom: 1rem; }

.page-content p {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.page-content ul {
    color: var(--color-text-muted);
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

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

@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .split-section { grid-template-columns: 1fr; }
    .split-section.reverse { direction: ltr; }
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 72px; left: 0; right: 0;
        background: var(--color-bg-alt);
        border-bottom: 1px solid var(--color-border);
        padding: 1.5rem 2rem;
        transform: translateY(-120%);
        transition: transform var(--transition);
        z-index: 999;
    }

    .main-nav.active { transform: translateY(0); }

    .main-nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    .burger-menu { display: flex; }

    .hero { min-height: 400px; }

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

    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }

    .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }

    .cookie-inner { flex-direction: column; text-align: center; }

    .header-inner { padding: 0 1.25rem; }

    .section { padding: 3rem 1.25rem; }
}