/* DESIGN SYSTEM: digitalplatformdirectory.uk */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-alt: #020617;
    --accent: #22d3ee;
    --accent-glow: rgba(34, 211, 238, 0.1);
    --text-main: #cbd5e1;
    --text-muted: #94a3b8;
    --text-heading: #ffffff;
    --border: #334155;
    --header-h: 70px;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { 
    background-color: var(--bg-primary); 
    color: var(--text-main); 
    font-family: var(--font-body); 
    line-height: 1.7;
    overflow-x: hidden;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* Sticky Header */
.site-header {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: var(--header-h);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container { display: flex; justify-content: space-between; align-items: center; height: 100%; }
.logo { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 700; color: #fff; text-decoration: none; }
.logo span { color: var(--accent); }

/* Mobile Navigation (Checkbox Hack) */
#nav-toggle { display: none; }
.nav-toggle-label { display: none; cursor: pointer; padding: 10px; }
.nav-toggle-label span { 
    display: block; width: 24px; height: 2px; background: var(--accent); position: relative; 
}
.nav-toggle-label span::before, .nav-toggle-label span::after {
    content: ''; position: absolute; width: 100%; height: 2px; background: var(--accent); transition: 0.3s;
}
.nav-toggle-label span::before { top: -8px; }
.nav-toggle-label span::after { bottom: 8px; }

.nav-links { display: flex; list-style: none; gap: 1.5rem; }
.nav-links a { 
    color: var(--text-muted); font-size: 0.85rem; text-decoration: none; 
    font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }

/* Hero */
.hero { padding: 6rem 0 4rem; background: radial-gradient(circle at 100% 0%, var(--accent-glow), transparent 40%); }
.hero-badge { 
    display: inline-block; padding: 4px 12px; border: 1px solid var(--accent); 
    color: var(--accent); font-size: 0.75rem; font-weight: 700; border-radius: 4px; margin-bottom: 2rem; 
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); color: #fff; margin-bottom: 1.5rem; }
.hero p { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--text-muted); max-width: 800px; }

/* Metrics */
.metrics-bar { background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 1.5rem 0; }
.metrics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.metric-item { text-align: center; border-right: 1px solid var(--border); }
.metric-item:last-child { border-right: none; }
.metric-value { display: block; font-size: 1.2rem; color: var(--accent); font-weight: 700; font-family: var(--font-heading); }
.metric-label { font-size: 0.7rem; text-transform: uppercase; color: var(--text-muted); }

/* Sections */
.content-section { padding: 5rem 0; }
.section-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 4rem; align-items: start; }
.bg-alt { background-color: var(--bg-alt); }

h2 { font-size: 2rem; color: #fff; margin-bottom: 1.5rem; }
h4 { color: var(--accent); margin: 1.5rem 0 1rem; font-size: 1.1rem; }

/* Cards & Registry */
.registry-grid-section { padding: 4rem 0; border-top: 1px solid var(--border); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 2.5rem; margin-top: 3rem; }
.card { 
    background: var(--bg-secondary); border: 1px solid var(--border); 
    padding: 2.5rem; border-radius: 12px; transition: 0.3s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-5px); }

.status-tag { 
    display: inline-block; background: rgba(34, 211, 238, 0.1); 
    color: var(--accent); padding: 4px 10px; font-size: 0.7rem; font-weight: 700; border-radius: 4px; margin-bottom: 1rem;
}
.tag-inactive { background: #334155; color: #94a3b8; }

.table-wrapper { overflow-x: auto; margin: 1.5rem 0; border: 1px solid var(--border); border-radius: 6px; }
table { width: 100%; border-collapse: collapse; min-width: 300px; }
th, td { padding: 0.75rem; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.85rem; }
th { color: var(--text-muted); font-weight: 500; width: 40%; }
td { color: #fff; font-weight: 600; }

.btn-doc { 
    display: block; width: 100%; text-align: center; padding: 12px; 
    border: 1px solid var(--accent); color: var(--accent); text-decoration: none;
    border-radius: 6px; font-weight: 600; font-size: 0.9rem; transition: 0.3s;
}
.btn-doc:hover { background: var(--accent); color: var(--bg-primary); }

/* Sidebar Doc Box */
.section-info-card { background: var(--bg-alt); padding: 2.5rem; border: 1px solid var(--border); border-radius: 8px; }
.card-header-doc { color: #fff; font-weight: 700; text-transform: uppercase; font-size: 0.8rem; margin-bottom: 1rem; letter-spacing: 1px; }
.status-indicator { display: block; margin-top: 1.5rem; color: #10b981; font-size: 0.8rem; font-weight: 700; }

/* Lists */
.tech-list { list-style: none; margin: 1.5rem 0; }
.tech-list li { margin-bottom: 1rem; padding-left: 1.5rem; position: relative; font-size: 0.95rem; }
.tech-list li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }

/* Disclosure */
.disclosure-box { background: var(--bg-alt); padding: 3rem; border: 1px solid var(--border); border-radius: 12px; }
.disclosure-list { list-style: none; margin: 1.5rem 0; }
.disclosure-list li { margin-bottom: 0.75rem; color: var(--text-muted); font-size: 0.9rem; }
.disclosure-list li strong { color: #fff; }

/* Responsible section */
.responsible-flex { display: flex; gap: 3rem; align-items: center; background: rgba(255,255,255,0.02); padding: 3rem; border-radius: 12px; }
.age-badge { 
    font-size: 2.5rem; font-weight: 700; color: var(--accent); border: 4px solid var(--accent);
    width: 100px; height: 100px; display: flex; align-items: center; justify-content: center; border-radius: 50%; flex-shrink: 0;
}

/* Footer */
.footer { padding: 5rem 0 3rem; background: var(--bg-alt); border-top: 1px solid var(--border); margin-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 4rem; margin-bottom: 3rem; }
.footer h4 { color: #fff; text-transform: uppercase; font-size: 0.8rem; margin-bottom: 1.5rem; letter-spacing: 1px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 0.75rem; }
.footer a { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; }
.footer a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 2rem; text-align: center; font-size: 0.8rem; color: var(--text-muted); }

/* --- RESPONSIVE --- */

@media (max-width: 1024px) {
    .section-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle-label { display: block; }
    .nav-links {
        position: fixed; top: var(--header-h); left: 0; width: 100%; height: 0;
        background: var(--bg-primary); flex-direction: column; overflow: hidden;
        transition: 0.3s ease; border-bottom: 0px solid var(--border);
    }
    .nav-links li { width: 100%; text-align: center; }
    .nav-links a { display: block; padding: 20px; border-bottom: 1px solid var(--border); }
    
    #nav-toggle:checked ~ .nav-links { height: calc(100vh - var(--header-h)); border-bottom: 1px solid var(--border); }
    
    .metrics-grid { grid-template-columns: 1fr 1fr; }
    .metric-item:nth-child(even) { border-right: none; }
    
    .responsible-flex { flex-direction: column; text-align: center; }
    .footer-grid { grid-template-columns: 1fr; }
    .inner-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .metrics-grid { grid-template-columns: 1fr; }
    .metric-item { border-right: none; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
    .hero h1 { font-size: 2.2rem; }
    .disclosure-box { padding: 1.5rem; }
}

/* Принудительное центрирование для страниц без сайдбара */
.container-narrow {
    max-width: 850px; /* Оптимальная ширина для чтения */
    margin: 0 auto !important; /* Центрирует сам блок */
    padding: 4rem 1.5rem;
    display: block;
}

/* Выравнивание заголовков и текста внутри узкого контейнера */
.container-narrow h1, 
.container-narrow h2, 
.container-narrow h3, 
.container-narrow p {
    text-align: left; /* Текст остается слева, но внутри узкой центральной колонки */
}

/* Если хочешь, чтобы заголовки были по центру (как в Hero), добавь этот класс */
.text-center {
    text-align: center !important;
}

/* Улучшаем читаемость лонгридов */
.doc-body p {
    max-width: 75ch; /* Ограничение длины строки (стандарт типографики) */
    margin-bottom: 1.5rem;
}