:root {
    --brand: #243f8f;
    --brand-dark: #1a2d68;
    --brand-light: #eef1fa;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --radius: 12px;
    --max-width: 1140px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
    --shadow-md: 0 6px 16px rgba(15, 23, 42, .08);
    --shadow-lg: 0 16px 32px rgba(15, 23, 42, .12);
    --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
}

html, body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
}

/* Прижимает футер к низу на коротких страницах публичного сайта, растягивая
   контент между шапкой и футером до высоты экрана. Оформлено отдельным
   классом (а не тегом body), чтобы не задеть раскладку панели управления
   (.admin-body — сайдбар + контент в строку). */
body.site-body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-body main {
    flex: 1 0 auto;
}

.site-body .site-footer {
    flex-shrink: 0;
}

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

img, svg { max-width: 100%; }

/*
 * .container задаёт горизонтальные отступы страницы. Важно: ни один другой
 * класс, комбинируемый с .container на одном элементе (.section,
 * .header-inner, .footer-inner и т.п.), не должен задавать padding через
 * сокращённую запись вида "padding: 20px 0" — это обнуляет левый/правый
 * отступ независимо от порядка объявления в CSS и ломает вёрстку на мобильных.
 * Такие классы ниже используют только padding-top/padding-bottom.
 */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

@media (max-width: 480px) {
    .container { padding-left: 16px; padding-right: 16px; }
}

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid transparent;
    transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}

.site-header.is-scrolled {
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    padding-bottom: 16px;
}

.logo {
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: -.01em;
    color: var(--brand);
    transition: opacity .2s var(--ease);
}
.logo:hover { text-decoration: none; opacity: .8; }

.main-nav { display: none; gap: 4px; }

.nav-link {
    position: relative;
    padding: 8px 14px;
    border-radius: 8px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: .95rem;
    transition: background-color .2s var(--ease), color .2s var(--ease);
}
.nav-link:hover { background: var(--brand-light); color: var(--brand); text-decoration: none; }
.nav-link.is-active { background: var(--brand-light); color: var(--brand); }

.menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 8px;
    transition: background-color .2s var(--ease);
}
.menu-toggle:hover { background: var(--brand-light); }
.burger, .burger::before, .burger::after {
    display: block;
    width: 22px; height: 2px;
    border-radius: 2px;
    background: var(--text);
    position: relative;
    transition: transform .2s var(--ease), opacity .2s var(--ease);
}
.burger::before, .burger::after { content: ""; position: absolute; left: 0; }
.burger::before { top: -7px; }
.burger::after { top: 7px; }
.menu-toggle[aria-expanded="true"] .burger { background: transparent; }
.menu-toggle[aria-expanded="true"] .burger::before { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .burger::after { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
    display: none;
    flex-direction: column;
    gap: 2px;
    padding: 8px 20px 16px;
    border-top: 1px solid var(--border);
}
.mobile-nav.is-open { display: flex; }
.mobile-nav .nav-link { padding: 10px 12px; }

@media (max-width: 480px) {
    .mobile-nav { padding-left: 16px; padding-right: 16px; }
}

@media (min-width: 768px) {
    .main-nav { display: flex; }
    .menu-toggle { display: none; }
}

/* Hero */
.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(900px 480px at 12% -15%, rgba(36, 63, 143, .14), transparent 60%),
        radial-gradient(700px 420px at 92% 0%, rgba(36, 63, 143, .10), transparent 55%),
        var(--brand-light);
    padding-top: 64px;
    padding-bottom: 64px;
}

@media (max-width: 640px) {
    .hero { padding-top: 44px; padding-bottom: 44px; }
}

.hero h1 {
    font-size: 2.3rem;
    line-height: 1.15;
    letter-spacing: -.01em;
    color: var(--brand-dark);
    margin: 0 0 16px;
    max-width: 720px;
}
@media (max-width: 640px) {
    .hero h1 { font-size: 1.7rem; }
}

.hero-lead {
    max-width: 940px;
    color: var(--text-muted);
    font-size: 1.05rem;
    white-space: pre-line;
    overflow-wrap: break-word;
}

.hero-actions {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.section {
    padding-top: 56px;
    padding-bottom: 56px;
}
@media (max-width: 640px) {
    .section { padding-top: 40px; padding-bottom: 40px; }
}
.section h2 {
    font-size: 1.6rem;
    margin: 0 0 24px;
    position: relative;
    padding-bottom: 14px;
}
.section h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 44px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--brand), #5670bd);
}
.lead { color: var(--text-muted); max-width: 940px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border-radius: 10px;
    font-weight: 600;
    font-size: .95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .18s var(--ease), box-shadow .18s var(--ease), background-color .18s var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 6px 16px rgba(36, 63, 143, .25); }
.btn-primary:hover { background: var(--brand-dark); box-shadow: 0 10px 22px rgba(36, 63, 143, .3); }
.btn-secondary { background: #fff; color: var(--brand); border-color: #c7d1ee; }
.btn-secondary:hover { background: var(--brand-light); box-shadow: var(--shadow-sm); }
.btn-sm { padding: 8px 14px; font-size: .85rem; }

/* Cards */
.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card.muted { color: var(--text-muted); text-align: center; margin-top: 32px; }

.stack > .card:hover,
.grid-3 > .card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: #d7deef;
}

.stack { display: flex; flex-direction: column; gap: 20px; margin-top: 32px; }

.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 32px;
}
@media (min-width: 640px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.company-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 0 0 16px;
}

.company-name {
    margin: 0;
    font-size: 1.15rem;
    color: var(--brand-dark);
}

.company-heading .flag {
    font-size: 1.4rem;
    line-height: 1;
    flex-shrink: 0;
}

.details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin: 0;
}
@media (min-width: 640px) { .details-grid { grid-template-columns: 1fr 1fr; } }
.details-grid dt { font-size: .85rem; color: var(--text-muted); margin-bottom: 4px; }
.details-grid dd { margin: 0; overflow-wrap: break-word; }
.details-grid .span-2 { grid-column: 1 / -1; }

.meta { color: var(--text-muted); font-size: .9rem; margin: 4px 0 12px; }
.description { white-space: pre-line; overflow-wrap: break-word; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--brand-light);
    color: var(--brand-dark);
    font-size: .8rem;
    font-weight: 600;
    transition: background-color .2s var(--ease), transform .2s var(--ease);
}
.card:hover .tag { background: #e2e8fb; }

.contact-details { margin: 12px 0 0; font-size: .95rem; }
.contact-details div { margin-bottom: 6px; overflow-wrap: break-word; }
.muted { color: var(--text-muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-soft); }
.footer-inner { padding-top: 28px; padding-bottom: 28px; font-size: .875rem; color: var(--text-muted); }

/* Scroll-reveal (прогрессивное усиление, без JS остаётся полностью видимым) */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
    .reveal, .btn, .card, .site-header, .nav-link, .burger { transition: none !important; }
}

/* Admin */
.admin-body { display: flex; min-height: 100vh; background: var(--bg-soft); }
.admin-sidebar {
    width: 240px;
    flex-shrink: 0;
    background: #fff;
    border-right: 1px solid var(--border);
    padding: 24px;
    display: none;
}
@media (min-width: 768px) { .admin-sidebar { display: block; } }
.admin-brand { font-weight: 700; color: var(--brand); font-size: 1.1rem; }
.admin-nav { margin-top: 24px; display: flex; flex-direction: column; gap: 4px; }
.admin-nav a { padding: 10px 12px; border-radius: 8px; color: var(--text-muted); font-weight: 500; font-size: .9rem; transition: background-color .2s var(--ease), color .2s var(--ease); }
.admin-nav a:hover { background: var(--brand-light); color: var(--brand); text-decoration: none; }
.admin-nav a.is-active { background: var(--brand-light); color: var(--brand); }
.admin-main {
    flex: 1;
    min-width: 0;
    padding: 20px;
}
@media (min-width: 480px) { .admin-main { padding: 24px; } }
@media (min-width: 992px) { .admin-main { padding: 40px; } }

.admin-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.admin-header h1 { margin: 0; font-size: 1.5rem; }

.alert { padding: 12px 16px; border-radius: 10px; font-size: .9rem; margin-bottom: 20px; }
.alert-success { background: #ecfdf3; color: #027a48; border: 1px solid #abefc6; }
.alert-error { background: #fef3f2; color: #b42318; border: 1px solid #fda29b; }

.table-wrap {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
table { width: 100%; min-width: 480px; border-collapse: collapse; font-size: .9rem; }
thead { background: var(--bg-soft); text-transform: uppercase; font-size: .75rem; color: var(--text-muted); }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
tbody tr { transition: background-color .15s var(--ease); }
tbody tr:hover { background: var(--bg-soft); }
tbody tr:last-child td { border-bottom: none; }
.text-right { text-align: right; }
.link-danger { color: #b42318; }

.stats-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 640px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-value { font-size: 2rem; font-weight: 700; margin-top: 8px; }

.form-card { max-width: 640px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .9rem; font-weight: 600; margin-bottom: 6px; }
.form-row { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 640px) { .form-row-3 { grid-template-columns: repeat(3, 1fr); } .form-row-2 { grid-template-columns: repeat(2, 1fr); } }

input[type=text], input[type=email], input[type=number], input[type=password], textarea, select {
    width: 100%;
    max-width: 100%;
    padding: 10px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: .95rem;
    font-family: inherit;
    background: #fff;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(36,63,143,.15); }
textarea { resize: vertical; }

.requisites-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 12px;
}
.requisite-row {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 8px;
    align-items: center;
}
@media (max-width: 480px) {
    .requisite-row { grid-template-columns: 1fr; }
}
.requisite-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: #fff;
    color: var(--text-muted);
    cursor: pointer;
    transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.requisite-remove:hover { color: #b42318; border-color: #fda29b; background: #fef3f2; }
template { display: none; }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: .9rem; }
.hint { font-size: .8rem; color: var(--text-muted); margin-top: 4px; }
.form-actions { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg-soft); padding: 20px; }
.login-card {
    width: 100%;
    max-width: 360px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-md);
}
.login-card .admin-brand { font-size: 1.25rem; }
.login-card p { color: var(--text-muted); font-size: .9rem; }
.login-card .btn { width: 100%; margin-top: 20px; }

.logout-form { margin-top: 32px; }
.logout-form button { background: none; border: none; padding: 0; color: var(--text-muted); font-size: .85rem; cursor: pointer; }
.logout-form button:hover { color: var(--brand); text-decoration: underline; }