/* =========================================================
   AIMP3.RU - дизайн-система
   Единый стиль для всего сайта
   ========================================================= */

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

:root {
    /* Основные цвета */
    --bg: #f5f6f8;
    --bg-panel: #1a1a1f;
    --surface: #ffffff;
    --surface-muted: #f0f1f3;
    --ink: #1e1e24;
    --ink-soft: #3a3a42;
    --ink-faint: #7a7a84;
    --line: #e4e5e9;
    --accent: #4a6fa5;
    --accent-hover: #3a5a8a;
    --accent-light: #e8edf5;
    --success: #2d8a4e;
    --error: #c94040;
    
    /* Радиусы - везде одинаковые */
    --radius: 6px;
    
    /* Тени */
    --shadow-panel: 0 1px 3px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.08);
    --shadow-card: 0 1px 2px rgba(0,0,0,0.05);
    
    /* Шрифты */
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    
    /* Контейнер */
    --container-w: 1200px;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.6;
    min-height: 100vh;
}

a { 
    color: var(--accent);
    text-decoration: none;
}
a:hover { 
    color: var(--accent-hover);
    text-decoration: underline;
}

.page {
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
    background: var(--bg-panel);
    padding: 14px 28px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.site-header .logo {
    font-weight: 800;
    font-size: 18px;
    letter-spacing: 0.3px;
}
.site-header .logo a {
    color: #ffffff;
    text-decoration: none;
}

.site-header nav {
    display: flex;
    gap: 24px;
}
.site-header nav a {
    color: rgba(255,255,255,0.65);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.15s ease;
}
.site-header nav a:hover {
    color: #ffffff;
    text-decoration: none;
}

/* =========================================================
   MAIN CONTENT
   ========================================================= */
.main-content {
    flex: 1;
    background: var(--surface);
    border-radius: var(--radius);
    padding: 36px 40px;
    box-shadow: var(--shadow-panel);
    margin-bottom: 24px;
}

.main-content h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 6px;
    letter-spacing: -0.3px;
}

.main-content .subtitle {
    font-size: 16px;
    color: var(--ink-faint);
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 24px;
}

.main-content h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--ink);
    margin: 28px 0 14px 0;
}

.main-content h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--ink);
    margin: 22px 0 10px 0;
}

.main-content p {
    color: var(--ink-soft);
    margin-bottom: 14px;
}

.main-content ul, 
.main-content ol {
    margin: 10px 0 18px 22px;
    color: var(--ink-soft);
}

.main-content li {
    margin-bottom: 6px;
}

/* Блок с выделением - без голубой линии слева */
.main-content .highlight-box {
    background: var(--surface-muted);
    padding: 18px 22px;
    border-radius: var(--radius);
    margin: 22px 0;
    color: var(--ink-soft);
    border: 1px solid var(--line);
}

.main-content .highlight-box strong {
    color: var(--ink);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
    background: var(--bg-panel);
    border-radius: var(--radius);
    padding: 32px 36px 24px;
    color: rgba(255,255,255,0.85);
}

.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 24px;
}

.footer-cols h4 {
    font-size: 12px;
    font-weight: 700;
    color: rgba(255,255,255,0.45);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 12px;
}

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

.footer-cols ul li {
    margin-bottom: 6px;
}

.footer-cols ul li a {
    color: rgba(255,255,255,0.65);
    font-size: 14px;
    text-decoration: none;
    transition: color 0.15s ease;
}

.footer-cols ul li a:hover {
    color: #ffffff;
    text-decoration: none;
}

.payments-block {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 20px;
}

.payments-block .label {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    font-weight: 600;
}

.payment-logos {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.payment-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.95);
    padding: 6px 14px 6px 10px;
    border-radius: var(--radius);
}

.payment-logo svg {
    height: 20px;
    width: auto;
    display: block;
}

.payment-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--ink-soft);
    letter-spacing: 0.3px;
}

.copyright {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: rgba(255,255,255,0.3);
    font-family: var(--mono);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
    .page { padding: 12px; }
    .main-content { padding: 24px 20px; }
    .site-header { padding: 12px 18px; flex-direction: column; align-items: stretch; }
    .site-header nav { gap: 14px; flex-wrap: wrap; }
    .footer-cols { grid-template-columns: 1fr 1fr; gap: 20px; }
    .site-footer { padding: 24px 20px 18px; }
    .payments-block { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .main-content { padding: 18px 14px; }
    .main-content h1 { font-size: 22px; }
    .main-content h2 { font-size: 18px; }
    .footer-cols { grid-template-columns: 1fr; gap: 16px; }
    .site-header nav { gap: 10px; }
    .site-header nav a { font-size: 13px; }
    .payment-logo { padding: 4px 10px 4px 8px; }
    .payment-logo svg { height: 16px; }
}