/* ════════════════════════════════════════
   BRUTALIST EDUCATION PLATFORM
   Яркий, свежий, стильный брутализм
   ════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Space+Mono:wght@400;700&family=Unbounded:wght@700;800;900&display=swap');

:root {
    --bg: #f5f0eb;
    --bg-card: #ffffff;
    --bg-nav: #1a1a1a;
    --bg-input: #ffffff;
    --bg-hover: #ede8e3;
    --border: #1a1a1a;
    --border-thin: 2px solid #1a1a1a;
    --border-thick: 3px solid #1a1a1a;
    --text: #1a1a1a;
    --text-secondary: #555555;
    --text-muted: #888888;
    --text-light: #ffffff;
    --accent: #4361ee;
    --accent-hover: #3a56d4;
    --lime: #c6f135;
    --pink: #ff6b9d;
    --yellow: #ffe03d;
    --orange: #ff8a3d;
    --cyan: #00d4ff;
    --purple: #b06cff;
    --success: #2dc653;
    --success-light: #d4f5de;
    --warning: #ff9f1c;
    --warning-light: #fff3d6;
    --danger: #ef233c;
    --danger-light: #fde2e5;
    --radius: 0px;
    --radius-sm: 0px;
    --shadow: 4px 4px 0px #1a1a1a;
    --shadow-sm: 3px 3px 0px #1a1a1a;
    --shadow-md: 6px 6px 0px #1a1a1a;
    --shadow-hover: 6px 6px 0px #1a1a1a;
    --font: 'Space Grotesk', -apple-system, sans-serif;
    --mono: 'Space Mono', monospace;
    --display: 'Unbounded', sans-serif;
}

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

html { font-size: 15px; }

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

a { color: var(--accent); text-decoration: none; transition: all 0.1s; font-weight: 600; }
a:hover { color: var(--text); }

/* ─── Guest topbar (неавторизованные) ─── */
.guest-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: var(--bg-card);
    border-bottom: 3px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.guest-brand {
    font-family: var(--display);
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--text);
    letter-spacing: -0.02em;
}
.guest-brand:hover { color: var(--accent); }
.guest-nav { display: flex; align-items: center; gap: 1rem; }
.guest-link { color: var(--text); font-weight: 600; padding: 6px 12px; }
.guest-link:hover { color: var(--accent); }
.guest-main { padding: 2rem; max-width: 1200px; margin: 0 auto; }

/* ─── Layout: Sidebar + Main ─── */
.app-layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px;
    min-width: 240px;
    background: var(--bg-card);
    border-right: 3px solid var(--border);
    padding: 1.5rem 1.25rem;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.sidebar-brand {
    font-family: var(--display);
    font-size: 1.35rem;
    font-weight: 900;
    color: var(--text);
    letter-spacing: -0.02em;
    padding-bottom: 1.25rem;
    border-bottom: 2px solid var(--border);
    margin-bottom: 1.25rem;
    display: block;
}
.sidebar-brand:hover { color: var(--accent); }
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar-bottom { margin-top: auto; padding-top: 1rem; border-top: 2px solid var(--border); }
.sidebar-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    color: var(--text);
    font-weight: 600;
    font-size: 0.98rem;
    border: 2px solid transparent;
    text-decoration: none;
    transition: all 0.1s;
}
.sidebar-link:hover { background: var(--bg-hover); color: var(--text); border-color: var(--border); }
.sidebar-link.active { background: var(--lime); border-color: var(--border); box-shadow: 3px 3px 0 var(--border); }
.sidebar-logout { color: var(--danger); }
.sidebar-logout:hover { background: var(--danger-light); color: var(--danger); }

.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-header {
    padding: 1.25rem 2rem;
    border-bottom: 3px solid var(--border);
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.app-header-title {
    font-family: var(--display);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0;
}
.app-header-user { font-weight: 600; font-size: 0.95rem; color: var(--text-muted); }
.app-content { padding: 2rem; flex: 1; }

/* ─── Subject tabs ─── */
.subject-tabs {
    display: flex;
    gap: 0;
    border-bottom: 3px solid var(--border);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.subject-tab {
    padding: 12px 20px;
    font-family: var(--font);
    font-weight: 700;
    font-size: 1rem;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    border-bottom: 4px solid transparent;
    margin-bottom: -3px;
    text-decoration: none;
    display: inline-block;
}
.subject-tab:hover { color: var(--text); }
.subject-tab.active { color: var(--text); border-bottom-color: var(--accent); }

/* ─── Course mini-card (Мои курсы, sketch-style) ─── */
.mycourse-list { display: flex; flex-direction: column; gap: 1rem; }
.mycourse-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 0;
    background: var(--bg-card);
    border: 3px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.1s, box-shadow 0.1s;
    box-shadow: 4px 4px 0 var(--border);
}
.mycourse-card:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--border); color: var(--text); }
.mycourse-photo {
    background: var(--bg-hover);
    border-right: 3px solid var(--border);
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-muted);
    position: relative;
    overflow: hidden;
}
.mycourse-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.mycourse-body { padding: 1.25rem 1.5rem; display: flex; flex-direction: column; justify-content: space-between; }
.mycourse-title { font-family: var(--display); font-size: 1.25rem; font-weight: 800; letter-spacing: -0.01em; margin-bottom: 0.5rem; }
.mycourse-subject { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; margin-bottom: 0.25rem; }
.mycourse-progress-wrap { margin-top: auto; }
.mycourse-progress-bar { height: 14px; border: 2px solid var(--border); background: var(--bg); position: relative; overflow: hidden; }
.mycourse-progress-fill { height: 100%; background: var(--lime); border-right: 2px solid var(--border); transition: width 0.3s; }
.mycourse-progress-fill.full { border-right: none; }
.mycourse-progress-label { font-size: 0.85rem; font-weight: 700; margin-top: 6px; color: var(--text-secondary); }

/* ─── Market course card ─── */
.market-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; }
.market-card {
    background: var(--bg-card);
    border: 3px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 4px 4px 0 var(--border);
    transition: transform 0.1s, box-shadow 0.1s;
    position: relative;
    cursor: pointer;
}
.market-card:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--border); }
.market-card-photo { height: 160px; background: var(--bg-hover); border-bottom: 3px solid var(--border); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.market-card-photo img { width: 100%; height: 100%; object-fit: cover; }
.market-card-body { padding: 1rem 1.25rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.market-card-title { font-family: var(--display); font-size: 1.1rem; font-weight: 800; letter-spacing: -0.01em; color: var(--text); }
.market-card-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.4; flex: 1; }
.market-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; padding-top: 0.5rem; border-top: 2px solid var(--bg-hover); }
.market-card-price { font-family: var(--mono); font-size: 1.05rem; font-weight: 700; color: var(--text); }
.market-card-price.free { color: var(--success); }

/* ─── Cart panel ─── */
.cart-panel {
    background: var(--bg-card);
    border: 3px solid var(--border);
    border-radius: 14px;
    padding: 1.25rem 1.5rem;
    box-shadow: 4px 4px 0 var(--border);
    margin-bottom: 1.5rem;
}
.cart-title { font-family: var(--display); font-size: 1.15rem; font-weight: 800; margin-bottom: 0.75rem; }
.cart-empty { color: var(--text-muted); font-style: italic; }
.cart-list { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1rem; }
.cart-item { display: flex; align-items: center; justify-content: space-between; padding: 0.6rem 0.75rem; background: var(--bg); border: 2px solid var(--border); gap: 0.5rem; }
.cart-item-title { font-weight: 700; font-size: 0.95rem; }
.cart-item-price { font-family: var(--mono); font-weight: 700; }
.cart-remove-btn { background: transparent; border: none; color: var(--danger); font-weight: 700; cursor: pointer; font-size: 1.1rem; padding: 2px 8px; }
.cart-total-row { display: flex; align-items: center; justify-content: space-between; padding-top: 0.75rem; border-top: 2px solid var(--border); font-family: var(--display); font-weight: 800; font-size: 1.15rem; }

/* ─── Modal (confirm add to cart) ─── */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.4); display: none; align-items: center; justify-content: center; z-index: 1000; }
.modal-backdrop.open { display: flex; }
.modal-box {
    background: var(--bg-card);
    border: 3px solid var(--border);
    border-radius: 14px;
    padding: 1.75rem;
    box-shadow: 8px 8px 0 var(--border);
    max-width: 420px;
    width: calc(100% - 2rem);
    text-align: center;
}
.modal-title { font-family: var(--display); font-size: 1.25rem; font-weight: 800; margin-bottom: 0.5rem; }
.modal-text { color: var(--text-secondary); margin-bottom: 1.25rem; }
.modal-actions { display: flex; gap: 0.75rem; justify-content: center; }
.btn-yes { background: var(--success); color: #fff; border: 2px solid var(--border); box-shadow: 3px 3px 0 var(--border); padding: 10px 28px; font-weight: 700; cursor: pointer; font-family: var(--font); font-size: 1rem; }
.btn-yes:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--border); }
.btn-no { background: var(--danger); color: #fff; border: 2px solid var(--border); box-shadow: 3px 3px 0 var(--border); padding: 10px 28px; font-weight: 700; cursor: pointer; font-family: var(--font); font-size: 1rem; }
.btn-no:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--border); }

/* ─── Навбар ─── */
.navbar {
    background: var(--bg-nav);
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 3px solid var(--border);
}

.navbar-brand {
    font-family: var(--display);
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--lime);
    display: flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.navbar-brand span { font-size: 1.3rem; }

.navbar-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.navbar-links a {
    color: #ccc;
    padding: 8px 16px;
    border-radius: 0;
    font-size: 0.88rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    transition: all 0.1s;
    border: 2px solid transparent;
}

.navbar-links a:hover { color: #fff; background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.15); }
.navbar-links a.active { color: var(--lime); border-color: var(--lime); background: rgba(198,241,53,0.1); }

.nav-reviews {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 0;
    background: var(--pink);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 1;
    border: 2px solid #fff;
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-icon {
    background: none;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 0;
    cursor: pointer;
    padding: 6px 8px;
    color: #ccc;
    display: flex;
    align-items: center;
    transition: all 0.1s;
    text-decoration: none;
}
.nav-icon:hover { color: #fff; border-color: var(--lime); background: rgba(198,241,53,0.1); }

.nav-dropdown-wrap { position: relative; }
.nav-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--bg-card);
    border: var(--border-thick);
    box-shadow: var(--shadow);
    min-width: 180px;
    z-index: 200;
    overflow: hidden;
}
.nav-dropdown.open { display: block; }
.nav-dropdown a {
    display: block;
    padding: 12px 18px;
    font-size: 0.88rem;
    color: var(--text);
    font-weight: 600;
    transition: background 0.1s;
    border-bottom: 1px solid #eee;
}
.nav-dropdown a:last-child { border-bottom: none; }
.nav-dropdown a:hover { background: var(--yellow); color: var(--text); }

.navbar-avatar {
    width: 34px;
    height: 34px;
    border-radius: 0;
    object-fit: cover;
    border: 2px solid var(--lime);
}

.navbar-name {
    font-size: 0.88rem;
    font-weight: 700;
    color: #fff;
}

/* ─── Контейнер ─── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0;
}

.container-narrow {
    max-width: 540px;
    margin: 0 auto;
    padding: 0;
}

/* ─── Карточки ─── */
.card {
    background: var(--bg-card);
    border: var(--border-thick);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: box-shadow 0.15s, transform 0.15s;
}

.card:hover { box-shadow: var(--shadow-hover); }

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.card-title {
    font-family: var(--display);
    font-size: 1rem;
    font-weight: 800;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* ─── Статистика (дашборд) ─── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: var(--border-thick);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--accent);
}

.stat-card:nth-child(1)::before { background: var(--lime); }
.stat-card:nth-child(2)::before { background: var(--pink); }
.stat-card:nth-child(3)::before { background: var(--yellow); }
.stat-card:nth-child(4)::before { background: var(--cyan); }
.stat-card:nth-child(5)::before { background: var(--purple); }

.stat-value {
    font-family: var(--mono);
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ─── Таблицы ─── */
.table-wrap {
    overflow-x: auto;
    border: var(--border-thick);
    background: var(--bg-card);
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 14px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: var(--border-thick);
    background: var(--yellow);
}

td {
    padding: 14px 16px;
    font-size: 0.92rem;
    border-bottom: 2px solid #eee;
    vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: #faf8f5; }

/* ─── Формы ─── */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-input);
    border: var(--border-thin);
    font-family: var(--font);
    font-size: 0.92rem;
    color: var(--text);
    transition: border-color 0.1s, box-shadow 0.1s;
    outline: none;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    border-color: var(--accent);
    box-shadow: 3px 3px 0px var(--accent);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 500;
}

/* ─── Кнопки ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    font-family: var(--font);
    font-size: 0.88rem;
    font-weight: 700;
    border: var(--border-thin);
    cursor: pointer;
    transition: all 0.1s;
    text-decoration: none;
    line-height: 1.4;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.btn:hover {
    transform: translate(-1px, -1px);
    box-shadow: 5px 5px 0px #1a1a1a;
}

.btn:active {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px #1a1a1a;
}

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

.btn-outline {
    background: var(--bg-card);
    color: var(--text);
    border-color: var(--border);
}
.btn-outline:hover { background: var(--yellow); color: var(--text); }

.btn-success { background: var(--success); color: #fff; border-color: var(--border); }
.btn-success:hover { background: #25a546; color: #fff; }

.btn-danger { background: var(--danger); color: #fff; border-color: var(--border); }
.btn-danger:hover { background: #d01030; color: #fff; }

.btn-warning { background: var(--warning); color: #fff; border-color: var(--border); }

.btn-lime { background: var(--lime); color: var(--text); border-color: var(--border); }
.btn-lime:hover { background: #b8e430; color: var(--text); }

.btn-pink { background: var(--pink); color: #fff; border-color: var(--border); }
.btn-pink:hover { background: #e85a88; color: #fff; }

.btn-sm {
    padding: 6px 14px;
    font-size: 0.78rem;
    box-shadow: 2px 2px 0px #1a1a1a;
}
.btn-sm:hover { box-shadow: 3px 3px 0px #1a1a1a; }

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 5px 10px;
    box-shadow: none;
    text-transform: none;
}
.btn-ghost:hover { color: var(--text); background: var(--bg-hover); box-shadow: none; transform: none; }

/* ─── Бейджи ─── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 1.4;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border: 2px solid var(--border);
}

.badge-success { background: var(--lime); color: var(--text); }
.badge-warning { background: var(--yellow); color: var(--text); }
.badge-danger { background: var(--pink); color: #fff; }
.badge-info { background: var(--cyan); color: var(--text); }
.badge-purple { background: var(--purple); color: #fff; }
.badge-orange { background: var(--orange); color: #fff; }

/* ─── Алерты ─── */
.alert {
    padding: 14px 18px;
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    font-weight: 600;
    border: var(--border-thin);
    box-shadow: var(--shadow-sm);
}

.alert-error { background: #fde2e5; color: var(--danger); }
.alert-success { background: #d4f5de; color: #1a7a35; }

/* ─── Страницы логина / регистрации ─── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-card);
    border: var(--border-thick);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    position: relative;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: 8px;
    bottom: 8px;
    border: 3px solid var(--lime);
    z-index: -1;
}

.auth-title {
    font-family: var(--display);
    font-size: 1.8rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

.auth-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
}

/* ─── Сетка курсов ─── */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

.course-card {
    background: var(--bg-card);
    border: var(--border-thick);
    padding: 0;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    transition: box-shadow 0.15s, transform 0.15s;
    overflow: hidden;
}

.course-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translate(-2px, -2px);
}

.course-card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 3px solid var(--border);
}

.course-card-body {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}

.course-card-title {
    font-family: var(--display);
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.3;
}

.course-card-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    flex: 1;
    line-height: 1.5;
}

.course-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
    padding-top: 0.75rem;
    border-top: 2px solid #eee;
}

/* ─── Кликабельная карточка-ссылка ─── */
.course-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}
.course-card-link:hover { color: inherit; }
.course-card-link .course-card { cursor: pointer; }

/* ─── Видео-контейнер ─── */
.video-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: #0a0a0a;
    border: var(--border-thick);
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.video-container video, .video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* ─── Секции ─── */
.section-title {
    font-family: var(--display);
    font-size: 1.4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

/* ─── Список уроков ─── */
.lesson-list {
    list-style: none;
    border: var(--border-thick);
    overflow: hidden;
    background: var(--bg-card);
    box-shadow: var(--shadow);
}

.lesson-item-wrap {
    border-bottom: 2px solid #eee;
}

.lesson-item-wrap:last-child { border-bottom: none; }

.lesson-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    transition: background 0.1s;
}

.lesson-item:hover { background: #faf8f5; }

.lesson-item a {
    flex: 1;
    color: var(--text);
    font-weight: 600;
    font-size: 0.92rem;
}

.btn-toggle-desc {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px;
    display: flex;
    align-items: center;
    transition: color 0.1s;
}

.btn-toggle-desc:hover { color: var(--text); }

.lesson-item-wrap.open .btn-toggle-desc svg {
    transform: rotate(180deg);
}

.lesson-short-desc {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 18px 0 58px;
    background: #faf8f5;
}

.lesson-item-wrap.open .lesson-short-desc {
    max-height: 200px;
    padding: 10px 18px 14px 58px;
}

.lesson-short-desc p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.lesson-num {
    width: 32px;
    height: 32px;
    background: var(--bg);
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    font-weight: 700;
    flex-shrink: 0;
    border: 2px solid var(--border);
    font-family: var(--mono);
}

.lesson-num.done {
    background: var(--lime);
    color: var(--text);
    border-color: var(--border);
}

/* ─── Пустые состояния ─── */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* ─── Аватар ─── */
.avatar-large {
    width: 96px;
    height: 96px;
    object-fit: cover;
    border: 3px solid var(--border);
}

.avatar-placeholder {
    width: 96px;
    height: 96px;
    background: var(--lime);
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    border: 3px solid var(--border);
}

/* ─── Flex-утилиты ─── */
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-gap { gap: 8px; }
.flex-gap-lg { gap: 16px; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.82rem; }
.w-full { width: 100%; }

/* ─── Адаптив ─── */
@media (max-width: 768px) {
    .navbar { padding: 0 1rem; }
    .container, .container-narrow { padding: 1rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .course-grid { grid-template-columns: 1fr; }
    .navbar-links { display: none; }
}

/* ─── Страница сообщения ─── */
.message-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.message-card {
    max-width: 460px;
    background: var(--bg-card);
    border: var(--border-thick);
    padding: 3rem 2.5rem;
    box-shadow: var(--shadow-md);
}

.message-card h1 { font-family: var(--display); font-size: 1.5rem; margin-bottom: 0.75rem; text-transform: uppercase; }
.message-card p { color: var(--text-secondary); margin-bottom: 1.5rem; }

/* ─── ДЗ карточки ─── */
.hw-card {
    background: var(--bg-card);
    border: var(--border-thin);
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.hw-card-new {
    border-left: 5px solid var(--accent);
    background: #eef2ff;
}

.hw-card-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.hw-card-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.grade-display {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 14px;
    font-family: var(--mono);
    font-weight: 700;
    font-size: 0.88rem;
    border: 2px solid var(--border);
}

.grade-high { background: var(--lime); color: var(--text); }
.grade-mid { background: var(--yellow); color: var(--text); }
.grade-low { background: var(--pink); color: #fff; }

/* ─── Inline формы ─── */
.inline-form {
    display: inline;
}

.actions-cell {
    display: flex;
    gap: 4px;
    align-items: center;
}

/* ─── Review items ─── */
.review-item {
    background: var(--bg-card);
    border: var(--border-thin);
    padding: 16px 20px;
    margin-bottom: 8px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.15s, transform 0.15s;
}
.review-item:hover { box-shadow: var(--shadow); transform: translate(-1px, -1px); }
.review-title { font-weight: 700; font-size: 0.95rem; }
.review-status { font-size: 0.78rem; font-weight: 700; padding: 4px 12px; border: 2px solid var(--border); text-transform: uppercase; }
.review-status-pending { background: var(--yellow); color: var(--text); }
.review-status-done { background: var(--lime); color: var(--text); }
.review-details { margin-top: 10px; }
.review-details summary { cursor: pointer; font-size: 0.85rem; font-weight: 700; color: var(--accent); text-transform: uppercase; }
.review-details-body { padding-top: 10px; }

/* ─── Theme toggle — скрыт в брутализме ─── */
.theme-toggle { display: none; }

/* ─── Табы ─── */
.hw-tabs, .course-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border-bottom: 3px solid var(--border);
}
.hw-tab, .course-tab {
    padding: 12px 24px;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    background: none;
    color: var(--text-muted);
    font-family: var(--font);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 3px solid transparent;
    margin-bottom: -3px;
    transition: all 0.1s;
}
.hw-tab.active, .course-tab.active { color: var(--text); border-bottom-color: var(--accent); background: var(--bg-card); }
.hw-tab:hover, .course-tab:hover { color: var(--text); background: #faf8f5; }
.hw-tab-content, .course-tab-content { display: none; }
.hw-tab-content.active, .course-tab-content.active { display: block; }

/* ─── Progress bar ─── */
.progress-bar-wrap { width: 100%; height: 14px; background: #eee; border: 2px solid var(--border); overflow: hidden; margin-top: 8px; }
.progress-bar-fill { height: 100%; transition: width 0.5s ease; }

/* ─── Course price ─── */
.course-price { font-family: var(--mono); font-size: 1.5rem; font-weight: 700; color: var(--text); }
.course-price-free { color: var(--success); }

/* ─── Пробник — Таймер ─── */
.probnik-timer {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--pink);
    color: #fff;
    font-family: var(--mono);
    font-size: 1.2rem;
    font-weight: 700;
    border: var(--border-thick);
    box-shadow: var(--shadow);
    animation: timerPulse 2s ease infinite;
}

.probnik-timer.expired {
    background: var(--danger);
    animation: none;
}

@keyframes timerPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

/* ─── Расписание ─── */
.schedule-grid {
    display: grid;
    gap: 12px;
}

.schedule-item {
    display: flex;
    align-items: stretch;
    background: var(--bg-card);
    border: var(--border-thin);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform 0.1s, box-shadow 0.1s;
}

.schedule-item:hover {
    transform: translate(-1px, -1px);
    box-shadow: var(--shadow);
}

.schedule-item-date {
    padding: 16px 20px;
    min-width: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--mono);
    font-weight: 700;
    border-right: 3px solid var(--border);
}

.schedule-item-date .day {
    font-size: 1.6rem;
    line-height: 1;
}

.schedule-item-date .month {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.schedule-item-body {
    padding: 14px 20px;
    flex: 1;
}

.schedule-item-title {
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.schedule-item-course {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
}

.schedule-item-type {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 2px 8px;
    border: 2px solid var(--border);
    display: inline-block;
    margin-top: 4px;
}

/* ─── Оплата ─── */
.payment-card {
    background: var(--bg-card);
    border: var(--border-thick);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    max-width: 500px;
    margin: 2rem auto;
}

.payment-amount {
    font-family: var(--mono);
    font-size: 2.5rem;
    font-weight: 700;
    margin: 1rem 0;
    color: var(--text);
}

/* ─── Question dots (lesson page) ─── */
.hw-toggle-btn {
    width: 100%;
    padding: 14px 20px;
    background: var(--bg-card);
    border: var(--border-thin);
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.1s;
    margin-bottom: 4px;
    box-shadow: var(--shadow-sm);
}
.hw-toggle-btn:hover { box-shadow: var(--shadow); transform: translate(-1px, -1px); }
.hw-toggle-btn .hw-deadline { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); }
.hw-toggle-btn .hw-deadline.expired { color: var(--danger); }
.hw-toggle-btn .hw-arrow { transition: transform 0.2s; }
.hw-toggle-btn.open .hw-arrow { transform: rotate(180deg); }
.hw-body { display: none; padding: 1rem 0; }
.hw-body.open { display: block; }

.q-nav { display: flex; gap: 8px; margin-bottom: 1.5rem; flex-wrap: wrap; }
.q-dot {
    width: 40px;
    height: 40px;
    border: 2px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 700;
    font-family: var(--mono);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}
.q-dot.active { border-color: var(--accent); color: var(--accent); box-shadow: 3px 3px 0px var(--accent); }
.q-dot.answered { background: var(--accent); border-color: var(--border); color: #fff; animation: dotPulse 0.4s ease; }
.q-dot.correct { background: var(--lime); border-color: var(--border); color: var(--text); }
.q-dot.wrong { background: var(--pink); border-color: var(--border); color: #fff; }
@keyframes dotPulse { 0% { transform: scale(1); } 50% { transform: scale(1.2); } 100% { transform: scale(1); } }

.q-panel { display: none; }
.q-panel.active { display: block; }
.q-explanation { padding: 12px 0; margin-top: 12px; border-top: 2px solid var(--border); }
.q-explanation strong { color: var(--border); text-transform: uppercase; letter-spacing: 0.02em; }
.q-nav-next { margin-top: 14px; display: flex; justify-content: flex-end; }
.finish-bar { margin-top: 1.5rem; padding-top: 1rem; border-top: 2px solid #eee; display: flex; align-items: center; justify-content: space-between; }
.finish-counter { font-size: 0.85rem; color: var(--text-muted); font-weight: 600; }

/* ─── Декоративные элементы ─── */
.decor-stripe {
    height: 6px;
    background: repeating-linear-gradient(90deg, var(--lime) 0, var(--lime) 20%, var(--pink) 20%, var(--pink) 40%, var(--yellow) 40%, var(--yellow) 60%, var(--cyan) 60%, var(--cyan) 80%, var(--purple) 80%, var(--purple) 100%);
}

.decor-tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border: 2px solid var(--border);
    transform: rotate(-2deg);
}

/* ─── Cropper overrides ─── */
.cropper-area { display: none; margin-top: 12px; }
.cropper-area.active { display: block; }
.cropper-preview { max-width: 100%; max-height: 350px; }
.crop-controls { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.crop-ratio-btn { padding: 6px 14px; font-size: 0.8rem; font-weight: 700; border: 2px solid var(--border); background: var(--bg-card); cursor: pointer; font-family: var(--font); text-transform: uppercase; }
.crop-ratio-btn.active { background: var(--accent); color: #fff; }

/* ─── Question block (admin homework) ─── */
.question-block { position: relative; }
.remove-q { position: absolute; top: 8px; right: 8px; background: none; border: none; color: var(--danger); cursor: pointer; font-size: 1.2rem; }