/* ═══════════════════════════════════════════════════════════════
   Gradebook v4.3 — «Aurora» theme (clean & modern, flat cards)
   Variants: aurora (default), classic (neumorphism), neon, ocean, solar
   ═══════════════════════════════════════════════════════════════ */

/* ── Base (Aurora light) ─────────────────────────────────────── */
:root {
    --gb-bg: #f6f7fb;
    --gb-surface: #ffffff;
    --gb-surface-raised: #fafbff;
    --gb-surface-alt: #f1f3fa;
    --gb-border: #e5e7f0;
    --gb-border-strong: #d4d7e4;
    --gb-text: #0f172a;
    --gb-text-secondary: #475569;
    --gb-text-muted: #94a3b8;

    --gb-accent: #6366f1;
    --gb-accent-light: #818cf8;
    --gb-accent-dark: #4f46e5;
    --gb-accent-bg: rgba(99, 102, 241, 0.08);
    --gb-accent-bg-strong: rgba(99, 102, 241, 0.16);
    --gb-accent-glow: rgba(99, 102, 241, 0.35);
    --gb-accent-grad: linear-gradient(135deg, #6366f1 0%, #8b5cf6 45%, #ec4899 100%);

    --gb-pass: #10b981;
    --gb-pass-bg: rgba(16, 185, 129, 0.12);
    --gb-fail: #ef4444;
    --gb-fail-bg: rgba(239, 68, 68, 0.12);
    --gb-retake: #f59e0b;
    --gb-retake-bg: rgba(245, 158, 11, 0.14);
    --gb-pending: #94a3b8;
    --gb-pending-bg: rgba(148, 163, 184, 0.12);

    --gb-radius-xl: 18px;
    --gb-radius-lg: 14px;
    --gb-radius-md: 10px;
    --gb-radius-sm: 8px;
    --gb-radius-xs: 6px;

    --gb-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --gb-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --gb-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08), 0 2px 4px rgba(15, 23, 42, 0.04);
    --gb-shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10), 0 4px 12px rgba(15, 23, 42, 0.06);
    --gb-shadow-accent: 0 6px 18px rgba(99, 102, 241, 0.28);

    /* Legacy neumorphism aliases — теперь указывают на flat shadows. */
    --gb-neu-raised: var(--gb-shadow-md);
    --gb-neu-sm: var(--gb-shadow-sm);
    --gb-neu-inset: inset 0 2px 4px rgba(15, 23, 42, 0.06);
    --gb-neu-flat: var(--gb-shadow-xs);

    --gb-transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
    --gb-font-mono: ui-monospace, 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
}

/* ── Dark — Aurora ─────────────────────────────────────────── */
[data-theme="dark"] {
    --gb-bg: #0b0d1a;
    --gb-surface: #161a2e;
    --gb-surface-raised: #1e2340;
    --gb-surface-alt: #121528;
    --gb-border: #2a2f4f;
    --gb-border-strong: #3a4066;
    --gb-text: #f1f5f9;
    --gb-text-secondary: #cbd5e1;
    --gb-text-muted: #94a3b8;
    --gb-accent-bg: rgba(129, 140, 248, 0.14);
    --gb-accent-bg-strong: rgba(129, 140, 248, 0.22);
    --gb-pass-bg: rgba(16, 185, 129, 0.18);
    --gb-fail-bg: rgba(239, 68, 68, 0.18);
    --gb-retake-bg: rgba(245, 158, 11, 0.20);
    --gb-pending-bg: rgba(148, 163, 184, 0.14);
    --gb-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
    --gb-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --gb-shadow-md: 0 6px 20px rgba(0, 0, 0, 0.35);
    --gb-shadow-lg: 0 14px 38px rgba(0, 0, 0, 0.45);
    --gb-neu-inset: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* ── Variant: Neon (cyberpunk) ─────────────────────────────── */
[data-gb-variant="neon"][data-theme="dark"],
[data-gb-variant="neon"] {
    --gb-bg: #07080f;
    --gb-surface: #0f1124;
    --gb-surface-raised: #151833;
    --gb-surface-alt: #0a0c1b;
    --gb-border: #2a1f55;
    --gb-border-strong: #4a2da5;
    --gb-text: #eef2ff;
    --gb-text-secondary: #c7d2fe;
    --gb-text-muted: #8b8fc7;
    --gb-accent: #a855f7;
    --gb-accent-light: #c084fc;
    --gb-accent-dark: #7e22ce;
    --gb-accent-bg: rgba(168, 85, 247, 0.16);
    --gb-accent-bg-strong: rgba(168, 85, 247, 0.28);
    --gb-accent-glow: rgba(168, 85, 247, 0.6);
    --gb-accent-grad: linear-gradient(135deg, #06b6d4 0%, #a855f7 50%, #ec4899 100%);
    --gb-pass: #22d3ee;
    --gb-fail: #f43f5e;
    --gb-retake: #facc15;
    --gb-shadow-accent: 0 0 20px rgba(168, 85, 247, 0.6);
}
[data-gb-variant="neon"] .gb-header__accent,
[data-gb-variant="neon"] .gb-admin-hero::before {
    box-shadow: 0 0 12px rgba(168, 85, 247, 0.8);
}

/* ── Variant: Ocean (teal & deep blue) ─────────────────────── */
[data-gb-variant="ocean"][data-theme="dark"],
[data-gb-variant="ocean"] {
    --gb-bg: #061420;
    --gb-surface: #0d2438;
    --gb-surface-raised: #13304a;
    --gb-surface-alt: #0a1a28;
    --gb-border: #1d4768;
    --gb-border-strong: #2e6596;
    --gb-text: #e0f2fe;
    --gb-text-secondary: #bae6fd;
    --gb-text-muted: #7dd3fc;
    --gb-accent: #06b6d4;
    --gb-accent-light: #22d3ee;
    --gb-accent-dark: #0891b2;
    --gb-accent-bg: rgba(6, 182, 212, 0.14);
    --gb-accent-bg-strong: rgba(6, 182, 212, 0.24);
    --gb-accent-glow: rgba(6, 182, 212, 0.4);
    --gb-accent-grad: linear-gradient(135deg, #0891b2 0%, #06b6d4 50%, #22d3ee 100%);
    --gb-pass: #34d399;
    --gb-fail: #f87171;
    --gb-retake: #fbbf24;
}

/* ── Variant: Solar (warm orange & graphite) ───────────────── */
[data-gb-variant="solar"][data-theme="dark"],
[data-gb-variant="solar"] {
    --gb-bg: #1a1410;
    --gb-surface: #2a2218;
    --gb-surface-raised: #352a1f;
    --gb-surface-alt: #201a14;
    --gb-border: #4a3b2a;
    --gb-border-strong: #6b4e2e;
    --gb-text: #fff7ed;
    --gb-text-secondary: #fed7aa;
    --gb-text-muted: #d6b48c;
    --gb-accent: #f97316;
    --gb-accent-light: #fb923c;
    --gb-accent-dark: #c2410c;
    --gb-accent-bg: rgba(249, 115, 22, 0.14);
    --gb-accent-bg-strong: rgba(249, 115, 22, 0.24);
    --gb-accent-glow: rgba(249, 115, 22, 0.4);
    --gb-accent-grad: linear-gradient(135deg, #f97316 0%, #f59e0b 50%, #eab308 100%);
    --gb-pass: #84cc16;
    --gb-fail: #dc2626;
    --gb-retake: #facc15;
}

/* ── Base container ────────────────────────────────────────── */
body.path-local-gradebook,
.gb-wrap {
    background: var(--gb-bg);
}
.gb-wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px 40px;
    color: var(--gb-text);
}

/* ── Back bar ──────────────────────────────────────────────── */
.gb-back-bar { margin-bottom: 16px; display: flex; gap: 8px; align-items: center; }

.gb-btn--ghost {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--gb-radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--gb-surface);
    color: var(--gb-accent);
    border: 1px solid var(--gb-border);
    box-shadow: var(--gb-shadow-xs);
    text-decoration: none;
    transition: all var(--gb-transition);
    cursor: pointer;
}
.gb-btn--ghost:hover {
    border-color: var(--gb-accent);
    background: var(--gb-accent-bg);
    color: var(--gb-accent-dark);
    text-decoration: none;
    transform: translateY(-1px);
}

/* ── Header — hero with gradient accent ───────────────────── */
.gb-header {
    position: relative;
    border-radius: var(--gb-radius-xl);
    overflow: hidden;
    margin-bottom: 24px;
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    box-shadow: var(--gb-shadow-md);
}
.gb-header__accent {
    height: 4px;
    background: var(--gb-accent-grad);
}
.gb-header__content { padding: 26px 30px 0; }
.gb-header__identity {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 22px;
}
.gb-header__avatar img,
.gb-header__avatar .userpicture {
    width: 68px !important;
    height: 68px !important;
    border-radius: 50%;
    box-shadow: var(--gb-shadow-sm);
    border: 3px solid var(--gb-surface);
}
.gb-header__name {
    font-size: 1.55rem;
    font-weight: 800;
    margin: 0;
    color: var(--gb-text);
    letter-spacing: -0.02em;
}
.gb-header__plan {
    font-size: 0.92rem;
    color: var(--gb-text-secondary);
    margin-top: 4px;
}
.gb-header__code {
    display: inline-block;
    background: var(--gb-accent-bg);
    padding: 3px 10px;
    border-radius: 5px;
    font-size: 0.78rem;
    font-family: var(--gb-font-mono);
    color: var(--gb-accent);
    margin-left: 4px;
}

.gb-plan-switch { margin-top: 6px; font-size: 0.85rem; }
.gb-plan-switch__label { color: var(--gb-text-muted); margin-right: 8px; }
.gb-plan-switch__select {
    padding: 6px 12px;
    border-radius: var(--gb-radius-sm);
    border: 1px solid var(--gb-border);
    background: var(--gb-surface);
    color: var(--gb-text);
    font-size: 0.85rem;
    max-width: 260px;
    transition: border-color var(--gb-transition);
}
.gb-plan-switch__select:focus {
    outline: none;
    border-color: var(--gb-accent);
    box-shadow: 0 0 0 3px var(--gb-accent-bg-strong);
}

/* ── Stats row ─────────────────────────────────────────────── */
.gb-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 22px;
}
.gb-stat {
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    border-radius: var(--gb-radius-md);
    padding: 16px 14px;
    text-align: center;
    transition: all var(--gb-transition);
    position: relative;
    overflow: hidden;
}
.gb-stat::before {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 2px;
    background: var(--gb-accent);
    opacity: 0;
    transition: opacity var(--gb-transition);
}
.gb-stat:hover {
    border-color: var(--gb-accent);
    transform: translateY(-2px);
    box-shadow: var(--gb-shadow-md);
}
.gb-stat:hover::before { opacity: 1; }
.gb-stat__value {
    font-size: 1.7rem;
    font-weight: 800;
    line-height: 1;
    color: var(--gb-text);
    letter-spacing: -0.02em;
}
.gb-stat__value--pass { color: var(--gb-pass); }
.gb-stat__value--retake { color: var(--gb-retake); }
.gb-stat__divider { font-size: 1.1rem; font-weight: 400; color: var(--gb-text-muted); }
.gb-stat__label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--gb-text-muted);
    margin-top: 6px;
    font-weight: 600;
}
.gb-stat__alert { font-size: 0.75rem; color: var(--gb-fail); margin-top: 2px; }

/* ── Navigation tabs ───────────────────────────────────────── */
.gb-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0 4px;
    border-top: 1px solid var(--gb-border);
    gap: 10px;
    flex-wrap: wrap;
}
.gb-nav__tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.gb-nav__tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 34px;
    padding: 0 12px;
    border-radius: var(--gb-radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gb-text-secondary);
    text-decoration: none;
    background: transparent;
    border: 1px solid transparent;
    transition: all var(--gb-transition);
    position: relative;
}
.gb-nav__tab:hover {
    background: var(--gb-accent-bg);
    color: var(--gb-accent);
    text-decoration: none;
}
.gb-nav__tab--active {
    background: var(--gb-accent);
    color: #fff;
    font-weight: 600;
    box-shadow: var(--gb-shadow-accent);
}
.gb-nav__tab--future { opacity: 0.5; }
.gb-nav__tab-dot {
    position: absolute;
    top: 4px; right: 4px;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--gb-pass);
    box-shadow: 0 0 6px var(--gb-pass);
}

.gb-nav__actions { display: flex; gap: 8px; align-items: center; }

.gb-btn--action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--gb-radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    background: var(--gb-surface);
    color: var(--gb-text-secondary);
    border: 1px solid var(--gb-border);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--gb-transition);
}
.gb-btn--action:hover {
    border-color: var(--gb-accent);
    color: var(--gb-accent);
    background: var(--gb-accent-bg);
    text-decoration: none;
    transform: translateY(-1px);
}

.gb-theme-toggle,
.gb-notif-bell {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--gb-transition);
    color: var(--gb-text-secondary);
    text-decoration: none;
    position: relative;
}
.gb-theme-toggle:hover,
.gb-notif-bell:hover {
    border-color: var(--gb-accent);
    color: var(--gb-accent);
    background: var(--gb-accent-bg);
    transform: scale(1.06);
    text-decoration: none;
}
.gb-notif-bell__count {
    position: absolute;
    top: -4px; right: -4px;
    background: var(--gb-fail);
    color: #fff;
    font-size: 0.62rem;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
    border: 2px solid var(--gb-surface);
}

/* ── Semesters ─────────────────────────────────────────────── */
.gb-semesters { display: flex; flex-direction: column; gap: 18px; padding-bottom: 32px; }

.gb-semester {
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    border-radius: var(--gb-radius-lg);
    box-shadow: var(--gb-shadow-sm);
    overflow: hidden;
    transition: all var(--gb-transition);
}
.gb-semester:hover { box-shadow: var(--gb-shadow-md); }
.gb-semester--future { opacity: 0.65; }
.gb-semester--future:hover { opacity: 0.85; }

.gb-semester__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 22px;
    background: var(--gb-surface-alt);
    border-bottom: 1px solid var(--gb-border);
    gap: 14px;
    flex-wrap: wrap;
}
.gb-semester__title-group { display: flex; align-items: center; gap: 14px; }

.gb-semester__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--gb-radius-md);
    background: var(--gb-accent-grad);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 800;
    box-shadow: var(--gb-shadow-accent);
}
.gb-semester__number--active {
    background: var(--gb-pass);
    box-shadow: 0 0 0 3px var(--gb-pass-bg), 0 4px 12px rgba(16, 185, 129, 0.35);
}
.gb-semester__number--past {
    background: var(--gb-text-muted);
    box-shadow: none;
}
.gb-semester__name {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--gb-text);
    letter-spacing: -0.01em;
}
.gb-semester__dates { font-size: 0.75rem; color: var(--gb-text-muted); margin-top: 2px; }
.gb-semester__meta { display: flex; align-items: center; gap: 10px; }
.gb-semester__count { font-size: 0.8rem; color: var(--gb-text-muted); font-weight: 500; }

/* ── Tags ──────────────────────────────────────────────────── */
.gb-tag {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 4px 10px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.gb-tag--active { background: var(--gb-pass-bg); color: var(--gb-pass); }
.gb-tag--future { background: var(--gb-retake-bg); color: var(--gb-retake); }
.gb-tag--past { background: var(--gb-pending-bg); color: var(--gb-text-muted); }
.gb-tag--retake { background: var(--gb-retake-bg); color: var(--gb-retake); }

/* ── Notices ───────────────────────────────────────────────── */
.gb-notice--future {
    padding: 12px 22px;
    background: var(--gb-retake-bg);
    font-size: 0.85rem;
    color: var(--gb-retake);
    font-weight: 500;
    border-bottom: 1px solid var(--gb-border);
}
.gb-notice--retake {
    padding: 12px 22px;
    background: var(--gb-accent-bg);
    font-size: 0.85rem;
    color: var(--gb-accent);
    font-weight: 500;
    border-bottom: 1px solid var(--gb-border);
}

/* ── Items grid ────────────────────────────────────────────── */
.gb-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    padding: 18px;
}

/* ═══════════════════════════════════════════════════════════
   Cards 2.0 — улучшенная иерархия: header / body / foot / retake / details.
   Inline-аккордеон <details> не требует JS.
   ═══════════════════════════════════════════════════════════ */

.gb-item--v2 {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
}
.gb-item--v2 .gb-item__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px 8px;
    margin: 0;
    border-bottom: 1px solid transparent;
}
.gb-item--v2 .gb-item__body {
    padding: 6px 18px 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.gb-item--v2 .gb-item__name {
    margin: 0 0 12px;
    font-size: 0.98rem;
    font-weight: 700;
    line-height: 1.32;
    color: var(--gb-text);
}
.gb-item--v2 .gb-item__name-link { color: inherit; text-decoration: none; }
.gb-item--v2 .gb-item__name-link:hover {
    color: var(--gb-accent);
    text-decoration: underline;
    text-decoration-color: var(--gb-accent);
    text-underline-offset: 3px;
}
.gb-item--v2 .gb-item__grade-block {
    text-align: center;
    padding: 14px 0 6px;
    border-radius: var(--gb-radius-sm);
    background: var(--gb-surface-alt);
    margin: 0 -18px;
    padding-left: 18px;
    padding-right: 18px;
}
.gb-item--passed.gb-item--v2 .gb-item__grade-block { background: rgba(16, 185, 129, 0.07); }
.gb-item--failed.gb-item--v2 .gb-item__grade-block { background: rgba(239, 68, 68, 0.07); }
.gb-item--retake.gb-item--v2 .gb-item__grade-block { background: rgba(245, 158, 11, 0.07); }

.gb-item--v2 .gb-item__grade-date {
    display: inline-block;
    margin-top: 8px;
    padding: 3px 10px;
    border-radius: 10px;
    background: var(--gb-surface);
    color: var(--gb-text-muted);
    font-size: 0.72rem;
    font-weight: 600;
    border: 1px solid var(--gb-border);
}

/* ── Footer chips ────────────────────────────────────────── */
.gb-item--v2 .gb-item__foot {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 10px 18px;
    border-top: 1px solid var(--gb-border);
    background: var(--gb-surface);
}
.gb-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 10px;
    border: 1px solid var(--gb-border);
    background: var(--gb-surface-alt);
    color: var(--gb-text-secondary);
    letter-spacing: 0.02em;
    line-height: 1.5;
}
.gb-pill--neutral {}
.gb-pill--info {
    background: var(--gb-accent-bg);
    color: var(--gb-accent);
    border-color: transparent;
}
.gb-pill--retake {
    background: var(--gb-retake-bg);
    color: var(--gb-retake);
    border-color: transparent;
    font-weight: 700;
}

/* ── Retake badge (когда кнопки нет) ─────────────────────── */
.gb-item__retake-info {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0 18px 10px;
    padding: 8px 12px;
    border-radius: var(--gb-radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    line-height: 1.4;
}
.gb-item__retake-info--ok {
    background: var(--gb-accent-bg);
    color: var(--gb-accent);
    margin-top: 8px;
    margin-bottom: 0;
    text-align: center;
    justify-content: center;
}
.gb-item__retake-info--window_closed {
    background: var(--gb-pending-bg);
    color: var(--gb-text-muted);
    border: 1px dashed var(--gb-border);
}
.gb-item__retake-info--limit_reached {
    background: var(--gb-fail-bg);
    color: var(--gb-fail);
}
.gb-item__retake-info--in_progress {
    background: var(--gb-retake-bg);
    color: var(--gb-retake);
}
.gb-item__retake-info--no_grade {
    background: var(--gb-surface-alt);
    color: var(--gb-text-muted);
    font-weight: 500;
}
.gb-item__retake-info--admin {
    background: var(--gb-accent-bg);
    color: var(--gb-accent);
    font-weight: 500;
    margin-top: 6px;
}

/* ── Inline-аккордеон <details> ──────────────────────────── */
.gb-item__details {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--gb-border);
    background: var(--gb-surface);
}
.gb-item__details[open] {
    background: var(--gb-surface-alt);
}
.gb-item__details-summary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gb-text-secondary);
    cursor: pointer;
    user-select: none;
    transition: all var(--gb-transition);
    list-style: none;
}
.gb-item__details-summary::-webkit-details-marker { display: none; }
.gb-item__details-summary:hover {
    color: var(--gb-accent);
    background: var(--gb-accent-bg);
}
.gb-item__details-icon { font-size: 0.95rem; }
.gb-item__details-chevron {
    margin-left: auto;
    transition: transform var(--gb-transition);
    color: var(--gb-text-muted);
    font-size: 0.9rem;
}
.gb-item__details[open] .gb-item__details-chevron {
    transform: rotate(180deg);
    color: var(--gb-accent);
}

.gb-item__details-body {
    padding: 14px 18px 16px;
    border-top: 1px dashed var(--gb-border);
    animation: gb-details-fade-in 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes gb-details-fade-in {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.gb-item__details-list {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 6px 14px;
    margin: 0;
    font-size: 0.82rem;
}
.gb-item__details-list dt {
    color: var(--gb-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.4px;
    align-self: center;
}
.gb-item__details-list dd {
    margin: 0;
    color: var(--gb-text);
    font-weight: 600;
}

.gb-item__details-section {
    margin: 14px 0 8px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--gb-accent);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.gb-item__attempts {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.gb-item__attempt {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 8px 12px;
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    border-radius: var(--gb-radius-sm);
    font-size: 0.82rem;
}
.gb-item__attempt-num {
    font-weight: 800;
    color: var(--gb-accent);
    min-width: 28px;
}
.gb-item__attempt-info {
    display: flex;
    justify-content: space-between;
    flex: 1;
    gap: 10px;
}
.gb-item__attempt-grade { font-weight: 700; }
.gb-item__attempt-date { color: var(--gb-text-muted); font-size: 0.76rem; }
.gb-item__attempt--completed { border-left: 3px solid var(--gb-pass); }
.gb-item__attempt--initiated,
.gb-item__attempt--inprogress { border-left: 3px solid var(--gb-retake); }
.gb-item__attempt--expired { border-left: 3px solid var(--gb-text-muted); opacity: 0.7; }

.gb-item__components {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.gb-item__component {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 6px 10px;
    border-bottom: 1px dashed var(--gb-border);
    font-size: 0.82rem;
}
.gb-item__component:last-child { border-bottom: none; }
.gb-item__component-name {
    color: var(--gb-text-secondary);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.gb-item__component-grade {
    font-weight: 700;
    color: var(--gb-text);
    font-variant-numeric: tabular-nums;
}
.gb-item__component-grade--empty { color: var(--gb-text-muted); font-weight: 500; }

/* ── Item card — rich, vivid status colors ─────────────────── */
.gb-item {
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    border-radius: var(--gb-radius-md);
    padding: 18px 18px 14px;
    transition: all var(--gb-transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-height: 215px;
}
/* Цветная полоса слева (5px) + градиентный фон-акцент от статуса. */
.gb-item::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 5px;
    background: var(--gb-pending);
}
.gb-item::after {
    content: '';
    position: absolute;
    left: 5px; right: 0; top: 0;
    height: 70%;
    background: linear-gradient(180deg, transparent, transparent);
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity var(--gb-transition);
}
.gb-item > * { position: relative; z-index: 1; }

.gb-item--passed::before { background: var(--gb-pass); box-shadow: 0 0 12px var(--gb-pass-bg); }
.gb-item--passed::after {
    background: linear-gradient(180deg, var(--gb-pass-bg) 0%, transparent 100%);
    opacity: 0.6;
}
.gb-item--passed { border-color: rgba(16, 185, 129, 0.25); }

.gb-item--failed::before { background: var(--gb-fail); box-shadow: 0 0 12px var(--gb-fail-bg); }
.gb-item--failed::after {
    background: linear-gradient(180deg, var(--gb-fail-bg) 0%, transparent 100%);
    opacity: 0.55;
}
.gb-item--failed { border-color: rgba(239, 68, 68, 0.25); }

.gb-item--retake::before { background: var(--gb-retake); box-shadow: 0 0 12px var(--gb-retake-bg); }
.gb-item--retake::after {
    background: linear-gradient(180deg, var(--gb-retake-bg) 0%, transparent 100%);
    opacity: 0.55;
}
.gb-item--retake { border-color: rgba(245, 158, 11, 0.3); }

.gb-item--pending::after {
    background: linear-gradient(180deg, var(--gb-accent-bg) 0%, transparent 100%);
    opacity: 0.35;
}

.gb-item:hover {
    border-color: var(--gb-accent);
    box-shadow: var(--gb-shadow-lg);
    transform: translateY(-3px);
}
.gb-item:hover::after { opacity: 0.8; }

.gb-item__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}
.gb-item__control-type {
    font-size: 0.66rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid currentColor;
    background: var(--gb-surface);
}
.gb-item__control-type--exam { color: var(--gb-fail); background: var(--gb-fail-bg); border-color: transparent; }
.gb-item__control-type--credit { color: var(--gb-accent); background: var(--gb-accent-bg); border-color: transparent; }
.gb-item__control-type--diffcredit { color: var(--gb-pass); background: var(--gb-pass-bg); border-color: transparent; }
.gb-item__control-type--coursework { color: var(--gb-retake); background: var(--gb-retake-bg); border-color: transparent; }

/* Статус-иконка — круглая плашка с фоном */
.gb-item__status-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 0.95rem;
    font-weight: 800;
    box-shadow: var(--gb-shadow-sm);
}
.gb-item__status-icon--passed {
    color: #fff;
    background: var(--gb-pass);
}
.gb-item__status-icon--failed {
    color: #fff;
    background: var(--gb-fail);
}
.gb-item__status-icon--retake {
    color: #fff;
    background: var(--gb-retake);
}
.gb-item__status-icon--pending {
    color: var(--gb-text-muted);
    background: var(--gb-surface-alt);
    box-shadow: none;
}

.gb-item__name {
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.35;
    margin: 6px 0 14px;
    color: var(--gb-text);
    letter-spacing: -0.01em;
    flex: 1;
}
.gb-item__name a { color: inherit; text-decoration: none; border-bottom: 1px dashed transparent; }
.gb-item__name a:hover { color: var(--gb-accent); text-decoration: none; border-bottom-color: var(--gb-accent); }
.gb-item__name--locked { color: var(--gb-text-muted); }

/* Grade display — контрастный, заметный */
.gb-item__grade {
    text-align: center;
    padding: 12px 0 8px;
    border-top: 1px solid var(--gb-border);
    background: var(--gb-surface-alt);
    margin: 0 -18px;
    padding-left: 18px;
    padding-right: 18px;
}
.gb-item--passed .gb-item__grade { background: rgba(16, 185, 129, 0.06); }
.gb-item--failed .gb-item__grade { background: rgba(239, 68, 68, 0.06); }
.gb-item--retake .gb-item__grade { background: rgba(245, 158, 11, 0.06); }

.gb-item__grade-number {
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.04em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
.gb-item__grade-number--passed { color: var(--gb-pass); }
.gb-item__grade-number--failed { color: var(--gb-fail); }
.gb-item__grade-number--retake { color: var(--gb-retake); }
.gb-item__grade-number--empty {
    color: var(--gb-text-muted);
    font-size: 1.8rem;
    opacity: 0.5;
}
.gb-item__grade-label {
    font-size: 0.82rem;
    color: var(--gb-text-secondary);
    font-weight: 600;
    margin-top: 6px;
    letter-spacing: 0.02em;
}

.gb-item__progress {
    height: 6px;
    background: var(--gb-surface);
    border-radius: 3px;
    margin-top: 12px;
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.08);
}
.gb-item__progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 6px currentColor;
}
.gb-item__progress-fill--pass {
    background: linear-gradient(90deg, var(--gb-pass), #34d399);
    color: var(--gb-pass);
}
.gb-item__progress-fill--fail {
    background: linear-gradient(90deg, var(--gb-fail), #f87171);
    color: var(--gb-fail);
}
.gb-item__progress-fill--retake {
    background: linear-gradient(90deg, var(--gb-retake), #fbbf24);
    color: var(--gb-retake);
}

.gb-item__grade-date {
    font-size: 0.72rem;
    color: var(--gb-text-muted);
    margin-top: 8px;
    font-weight: 500;
}

.gb-item__retake-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 12px;
    background: var(--gb-retake-bg);
    color: var(--gb-retake);
    margin-top: 10px;
    align-self: flex-start;
    letter-spacing: 0.02em;
}
.gb-item__retake-badge::before { content: '🔄'; font-size: 0.75rem; }

.gb-item__retake-btn {
    display: block;
    margin-top: 12px;
    padding: 10px 14px;
    border-radius: var(--gb-radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
    text-align: center;
    background: linear-gradient(135deg, var(--gb-retake), #fbbf24);
    color: #fff !important;
    cursor: pointer;
    text-decoration: none !important;
    transition: all var(--gb-transition);
    border: none;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.45);
    letter-spacing: 0.02em;
}
.gb-item__retake-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(245, 158, 11, 0.55);
    filter: brightness(1.05);
}
.gb-item__retake-btn:active { transform: translateY(0); }

.gb-item__meta {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 0.7rem;
    color: var(--gb-text-muted);
    padding-top: 10px;
    margin-top: 8px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
.gb-item__meta span {
    padding: 3px 8px;
    background: var(--gb-surface-alt);
    border-radius: 4px;
}

/* ── Loading / skeleton ────────────────────────────────────── */
.gb-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
    color: var(--gb-text-muted);
    font-size: 0.9rem;
}
.gb-loading__spinner {
    width: 26px; height: 26px;
    border: 3px solid var(--gb-accent-bg);
    border-top-color: var(--gb-accent);
    border-radius: 50%;
    animation: gb-spin 0.6s linear infinite;
    margin-right: 12px;
}
@keyframes gb-spin { to { transform: rotate(360deg); } }

.gb-skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    padding: 18px;
}
.gb-skeleton-item {
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    border-radius: var(--gb-radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 150px;
}
.gb-skeleton-item > span {
    display: block;
    height: 12px;
    border-radius: 6px;
    background: linear-gradient(90deg,
        var(--gb-surface-alt) 0%,
        var(--gb-accent-bg) 50%,
        var(--gb-surface-alt) 100%);
    background-size: 200% 100%;
    animation: gb-shimmer 1.4s ease-in-out infinite;
}
.gb-skeleton-item > span:nth-child(1) { width: 40%; }
.gb-skeleton-item > span:nth-child(2) { width: 85%; }
.gb-skeleton-item > span:nth-child(3) { width: 60%; height: 40px; border-radius: 8px; margin-top: 6px; }
.gb-skeleton-item > span:nth-child(4) { width: 50%; }
@keyframes gb-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ── Empty state ───────────────────────────────────────────── */
.gb-empty {
    text-align: center;
    padding: 48px 20px;
    color: var(--gb-text-muted);
}
.gb-empty__icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 12px;
    opacity: 0.7;
}

/* ═══════════════════════════════════════════════════════════
   Admin hub (дублирую сюда из admin.css, чтобы не зависеть от
   очередности подключения / кеша CSS).
   ═══════════════════════════════════════════════════════════ */
.gb-admin-hero {
    position: relative;
    border-radius: var(--gb-radius-xl);
    overflow: hidden;
    margin-bottom: 28px;
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    box-shadow: var(--gb-shadow-md);
}
.gb-admin-hero::before {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 5px;
    background: var(--gb-accent-grad);
}
.gb-admin-hero__body {
    padding: 30px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.gb-admin-hero__text { flex: 1; min-width: 260px; }
.gb-admin-hero__title {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--gb-text);
    margin: 0 0 6px;
}
.gb-admin-hero__subtitle {
    color: var(--gb-text-secondary);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}
.gb-admin-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--gb-accent-bg);
    color: var(--gb-accent);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 10px;
}

.gb-admin-section { margin-bottom: 32px; }
.gb-admin-section__title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--gb-text-muted);
    margin: 0 0 14px;
    padding-left: 4px;
}
.gb-admin-section__title::before {
    content: '';
    width: 4px;
    height: 16px;
    background: var(--gb-accent);
    border-radius: 2px;
}

.gb-admin-hub {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 14px;
}
.gb-admin-card {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 14px;
    align-items: start;
    padding: 18px;
    border-radius: var(--gb-radius-lg);
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    box-shadow: var(--gb-shadow-xs);
    text-decoration: none !important;
    color: var(--gb-text) !important;
    transition: all var(--gb-transition);
    position: relative;
    overflow: hidden;
}
.gb-admin-card:hover {
    border-color: var(--gb-accent);
    box-shadow: var(--gb-shadow-md);
    text-decoration: none !important;
    transform: translateY(-2px);
}
.gb-admin-card::after {
    content: '→';
    position: absolute;
    top: 18px; right: 18px;
    color: var(--gb-text-muted);
    font-size: 1.2rem;
    font-weight: 700;
    opacity: 0;
    transform: translateX(-4px);
    transition: all var(--gb-transition);
}
.gb-admin-card:hover::after {
    opacity: 1;
    transform: translateX(0);
    color: var(--gb-accent);
}
.gb-admin-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--gb-radius-md);
    background: var(--gb-accent-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
}
.gb-admin-card-title {
    font-weight: 700 !important;
    font-size: 1rem;
    display: block !important;
    margin-bottom: 4px !important;
    color: var(--gb-text) !important;
}
.gb-admin-card-desc {
    display: block !important;
    font-size: 0.84rem !important;
    color: var(--gb-text-secondary) !important;
    line-height: 1.45;
    font-weight: 400 !important;
}

@media (max-width: 768px) {
    .gb-admin-hub { grid-template-columns: 1fr; }
    .gb-admin-hero__body { padding: 22px 20px; }
    .gb-admin-hero__title { font-size: 1.3rem; }
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
    .gb-wrap { padding: 0 12px 32px; }
    .gb-header__content { padding: 22px 18px 0; }
    .gb-stats { grid-template-columns: repeat(2, 1fr); }
    .gb-items { grid-template-columns: 1fr; padding: 14px; }
    .gb-skeleton-grid { grid-template-columns: 1fr; padding: 14px; }
    .gb-semester__header { flex-direction: column; align-items: flex-start; }
    .gb-nav { flex-direction: column; align-items: stretch; }
    .gb-nav__tabs { justify-content: center; }
    .gb-header__name { font-size: 1.25rem; }
}

/* ── Final-test gate: hard-block modal on course page ─────── */
.gb-final-test-modal {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin: 1rem auto;
    padding: 1.25rem 1.5rem;
    max-width: 920px;
    background: linear-gradient(135deg, #fff7e6 0%, #fff1d6 100%);
    border: 1px solid #f0c36d;
    border-left: 6px solid #d97706;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(217, 119, 6, 0.15);
    color: #5b3a05;
    font-size: 0.95rem;
    line-height: 1.45;
}
.gb-final-test-modal__icon {
    font-size: 1.75rem;
    flex: 0 0 auto;
    line-height: 1;
}
.gb-final-test-modal__body {
    flex: 1 1 auto;
    min-width: 0;
}
.gb-final-test-modal__title {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: #7a4a05;
}
.gb-final-test-modal__msg {
    margin: 0 0 0.5rem 0;
}
.gb-final-test-modal__when {
    margin: 0.5rem 0;
    font-size: 0.95rem;
}
.gb-final-test-modal__when-label {
    font-weight: 600;
    margin-right: 0.25rem;
}
.gb-final-test-modal__when-value {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid #f0c36d;
    border-radius: 6px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.9rem;
    user-select: all;
    cursor: text;
}
.gb-final-test-modal__dismiss {
    margin-top: 0.5rem;
    padding: 0.5rem 1.1rem;
    background: #d97706;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease;
}
.gb-final-test-modal__dismiss:hover { background: #b45309; }
.gb-final-test-modal__dismiss:focus { outline: 2px solid #fbbf24; outline-offset: 2px; }

[data-theme="dark"] .gb-final-test-modal {
    background: linear-gradient(135deg, #3a2a0a 0%, #2a1f08 100%);
    border-color: #b07b1d;
    border-left-color: #fbbf24;
    color: #fde9b8;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
[data-theme="dark"] .gb-final-test-modal__title { color: #fde9b8; }
[data-theme="dark"] .gb-final-test-modal__when-value {
    background: rgba(0, 0, 0, 0.35);
    border-color: #b07b1d;
    color: #fde9b8;
}

/* ── Final-test gate: preview banner on quiz/view.php ─────── */
.gb-final-test-preview {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0 0 1.25rem 0;
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
    border: 1px solid #a5b4fc;
    border-left: 6px solid #6366f1;
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.15);
    color: #312e81;
}
.gb-final-test-preview__icon {
    font-size: 1.75rem;
    line-height: 1;
}
.gb-final-test-preview__body { flex: 1 1 auto; min-width: 0; }
.gb-final-test-preview__msg {
    font-weight: 600;
    margin-bottom: 0.25rem;
}
.gb-final-test-preview__countdown {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: #4338ca;
}
.gb-final-test-preview__disabled,
button.gb-final-test-preview__disabled,
input.gb-final-test-preview__disabled {
    opacity: 0.55 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
}
[data-theme="dark"] .gb-final-test-preview {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    border-color: #6366f1;
    color: #c7d2fe;
}
[data-theme="dark"] .gb-final-test-preview__countdown { color: #c7d2fe; }

/* ── Print ─────────────────────────────────────────────────── */
@media print {
    .gb-header, .gb-stat, .gb-item, .gb-semester {
        box-shadow: none !important;
        border: 1px solid #ddd;
    }
    .gb-header__accent { background: #333 !important; print-color-adjust: exact; }
    .gb-nav, .gb-nav__actions, .gb-item__retake-btn,
    .gb-theme-toggle, .gb-notif-bell { display: none !important; }
    .gb-semester--future { opacity: 1; }
    .gb-items { grid-template-columns: repeat(2, 1fr); }
}