/* ==========================================================================
   VOCABULARY + GRAMMAR — Shared Premium Design System
   Clean · Modern · Green Accent #10b981
   ========================================================================== */

/* ─── CSS Variables ──────────────────────────────────────────────────────── */
:root {
    --v-bg-page: #f0f2f5;
    --v-surface: #ffffff;
    --v-card-bg: #ffffff;
    --v-card-border: rgba(15, 23, 42, 0.07);
    --v-card-border-hover: rgba(16, 185, 129, 0.25);
    --v-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --v-shadow-hover: 0 10px 30px rgba(15, 23, 42, 0.08), 0 4px 10px rgba(15, 23, 42, 0.05);
    --v-shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.1);

    --v-text: #1e293b;
    --v-text-secondary: #475569;
    --v-text-muted: #94a3b8;

    --v-accent: #10b981;
    --v-accent-dark: #059669;
    --v-accent-deep: #047857;
    --v-accent-light: #6ee7b7;
    --v-accent-soft: rgba(16, 185, 129, 0.12);
    --v-accent-border: rgba(16, 185, 129, 0.2);

    --v-nav-bg: #e8ecf1;
    --v-nav-text: #64748b;
    --v-nav-active: rgba(16, 185, 129, 0.1);
    --v-nav-active-text: #059669;

    --v-input-bg: #f8fafc;
    --v-input-border: #e2e8f0;

    --v-progress-track: #e2e8f0;
    --v-progress-fill: linear-gradient(90deg, #22c55e, #10b981);
}

[data-theme="dark"] {
    --v-bg-page: #0b0f17;
    --v-surface: #121824;
    --v-card-bg: #161d2b;
    --v-card-border: rgba(255, 255, 255, 0.06);
    --v-card-border-hover: rgba(16, 185, 129, 0.3);
    --v-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    --v-shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.35);
    --v-shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);

    --v-text: #f8fafc;
    --v-text-secondary: #cbd5e1;
    --v-text-muted: #94a3b8;

    --v-nav-bg: #1a2130;
    --v-nav-text: #94a3b8;
    --v-nav-active: rgba(16, 185, 129, 0.12);
    --v-nav-active-text: #10b981;

    --v-input-bg: #0f1624;
    --v-input-border: rgba(255, 255, 255, 0.14);

    --v-progress-track: rgba(255, 255, 255, 0.06);
}

/* ─── Base ───────────────────────────────────────────────────────────────── */
body.vocab-workspace-container {
    background: var(--v-bg-page);
    color: var(--v-text);
    font-family: 'Plus Jakarta Sans', 'Be Vietnam Pro', system-ui, sans-serif;
    min-height: 100vh;
    padding-bottom: 80px;
    transition: background 0.35s, color 0.35s;
}

/* ─── Container ──────────────────────────────────────────────────────────── */
.vocab-page-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px;
}
@media (max-width: 768px) {
    .vocab-page-container { padding: 0 16px; }
}

/* ══════════════════════════════════════════════════════════════════════════
   HERO SECTION (shared: grammar + vocabulary)
══════════════════════════════════════════════════════════════════════════ */
.vocab-hero-section {
    padding: 28px 0 32px;
    position: relative;
    background: linear-gradient(180deg, #ecfdf5 0%, #f0f2f5 100%);
    overflow: hidden;
}
[data-theme="dark"] .vocab-hero-section {
    background: linear-gradient(180deg, #0b1220 0%, #0b0f17 100%);
}
.vocab-hero-section::before {
    content: '';
    position: absolute;
    top: -100px; right: -80px;
    width: 350px; height: 350px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(16,185,129,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.vocab-hero-badges {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}
.vocab-hero-badges .soft-badge {
    font-size: 0.78rem;
    padding: 6px 16px;
    letter-spacing: 0.03em;
    background: #ffffff;
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: #047857;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}
.vocab-hero-badges .soft-badge i {
    font-size: 0.85rem;
    margin-right: 3px;
}
.vocab-hero-badges .soft-badge-outline {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #334155;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

[data-theme="dark"] .vocab-hero-badges .soft-badge,
html.dark .vocab-hero-badges .soft-badge {
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: rgba(16, 185, 129, 0.3) !important;
    color: #34d399 !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25) !important;
}

[data-theme="dark"] .vocab-hero-badges .soft-badge-outline,
html.dark .vocab-hero-badges .soft-badge-outline {
    background: rgba(255, 255, 255, 0.06) !important;
    border-color: rgba(255, 255, 255, 0.14) !important;
    color: #cbd5e1 !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25) !important;
}

.vocab-hero-title {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--v-text);
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin: 0 0 12px;
    position: relative;
    z-index: 1;
}
.vocab-hero-title span {
    background: linear-gradient(135deg, var(--v-accent-dark), var(--v-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.vocab-hero-desc {
    font-size: 1rem;
    color: var(--v-text-secondary);
    max-width: 600px;
    margin: 0;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ══════════════════════════════════════════════════════════════════════════
   CONTROLS — Tab & Toolbar
══════════════════════════════════════════════════════════════════════════ */
.vocab-controls-section {
    padding: 24px 0 0;
}

/* ─── Curriculum / Tab Pills ── */
.vocab-curr-tabs-wrapper {
    margin-bottom: 20px;
}
.vocab-curr-tabs {
    display: inline-flex;
    background: var(--v-nav-bg);
    border-radius: 14px;
    padding: 4px;
    gap: 3px;
    transition: background 0.3s;
}
.vocab-curr-tab {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 20px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--v-nav-text);
    text-decoration: none !important;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
    font-family: inherit;
}
.vocab-curr-tab:hover {
    color: var(--v-text);
    background: rgba(255,255,255,0.5);
}
[data-theme="dark"] .vocab-curr-tab:hover {
    background: rgba(255,255,255,0.04);
}
.vocab-curr-tab.active {
    background: #ffffff;
    color: var(--v-accent-dark);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
[data-theme="dark"] .vocab-curr-tab.active {
    background: #1e293b;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.vocab-curr-tab i, .vocab-curr-tab .material-symbols-outlined {
    font-size: 17px !important;
}

/* ─── Toolbar ── */
.vocab-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    background: var(--v-surface);
    border: 1px solid var(--v-card-border);
    border-radius: 16px;
    padding: 14px 20px;
    transition: all 0.3s;
}
.vocab-toolbar:focus-within {
    border-color: var(--v-accent-border);
    box-shadow: 0 0 0 3px var(--v-accent-soft);
}
.vocab-toolbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}
.vocab-toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

/* ─── Search Input ── */
.vocab-search-form { margin: 0; }
.vocab-search-input-wrap {
    position: relative;
}
.vocab-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--v-text-muted);
    font-size: 18px;
    pointer-events: none;
}
.vocab-search-input {
    background: var(--v-input-bg);
    border: 1px solid var(--v-input-border);
    border-radius: 10px;
    padding: 9px 14px 9px 38px;
    color: var(--v-text);
    font-size: 0.85rem;
    width: 220px;
    outline: none;
    transition: all 0.2s;
}
.vocab-search-input::placeholder { color: var(--v-text-muted); }
.vocab-search-input:focus {
    border-color: var(--v-accent);
    box-shadow: 0 0 0 3px var(--v-accent-soft);
}

/* ─── Quiz / Action Button ── */
.vocab-quiz-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: linear-gradient(135deg, var(--v-accent-dark), var(--v-accent));
    color: #fff !important;
    text-decoration: none !important;
    padding: 9px 20px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(16,185,129,0.2);
    transition: all 0.25s;
    font-family: inherit;
    border: none;
    cursor: pointer;
}
.vocab-quiz-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16,185,129,0.3);
}
.vocab-quiz-btn .material-symbols-outlined {
    font-size: 18px !important;
}

/* ══════════════════════════════════════════════════════════════════════════
   CARDS — Unified premium card (shared: grammar + vocabulary)
══════════════════════════════════════════════════════════════════════════ */

/* ─── Card container (grid) ── */
.vocab-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding-top: 8px;
}

/* ─── Card base ── */
.vocab-card {
    background: var(--v-card-bg);
    border: 1px solid var(--v-card-border);
    border-radius: 16px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--v-shadow);
}
.vocab-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--card-accent, var(--v-accent)), #34d399);
    opacity: 0;
    transition: opacity 0.3s;
}
.vocab-card:hover {
    transform: translateY(-4px);
    border-color: var(--v-card-border-hover);
    box-shadow: var(--v-shadow-hover);
}
.vocab-card:hover::before {
    opacity: 1;
}

.vocab-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}
.vocab-card-badge {
    background: var(--v-input-bg);
    border: 1px solid var(--v-card-border);
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--v-text-secondary);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}
.vocab-card-meta {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--v-text-muted);
}

.vocab-card-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--v-text);
    line-height: 1.35;
    margin: 0 0 auto;
    letter-spacing: -0.01em;
}
.vocab-card:hover .vocab-card-title {
    color: var(--v-accent-dark);
}
[data-theme="dark"] .vocab-card:hover .vocab-card-title {
    color: var(--v-accent-light);
}

/* ─── Card progress ── */
.vocab-card-progress {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--v-card-border);
}
.vocab-card-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.vocab-card-progress-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--v-text-muted);
}
.vocab-card-progress-score {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--v-text-muted);
}
.vocab-card-progress-score.has-progress {
    color: var(--v-accent);
}
.vocab-card-progress-track {
    height: 5px;
    background: var(--v-progress-track);
    border-radius: 99px;
    overflow: hidden;
    margin-bottom: 14px;
}
.vocab-card-progress-fill {
    height: 100%;
    background: var(--v-progress-fill);
    border-radius: 99px;
    transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── Card CTA ── */
.vocab-card-cta {
    width: 100%;
    background: var(--v-input-bg);
    border: 1px solid var(--v-card-border);
    color: var(--v-text-secondary);
    border-radius: 10px;
    padding: 9px 14px;
    font-size: 0.82rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.25s;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
}
.vocab-card:hover .vocab-card-cta {
    background: var(--v-accent);
    border-color: var(--v-accent);
    color: #fff;
    box-shadow: 0 4px 12px rgba(16,185,129,0.25);
}

/* ─── Special lesson card (grammar lessons) ── */
.vocab-card-lesson .vocab-card-top {
    margin-bottom: 12px;
}
.vocab-card-lesson .vocab-card-preview {
    font-size: 0.82rem;
    color: var(--v-text-secondary);
    line-height: 1.6;
    margin: 10px 0 14px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.gl-completed-overlay {
    position: absolute; top: 10px; right: 10px;
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff; font-size: 1rem;
    display: none; align-items: center; justify-content: center;
    box-shadow: 0 4px 12px rgba(16,185,129,0.25);
    z-index: 2;
}

/* ══════════════════════════════════════════════════════════════════════════
   EMPTY STATE
══════════════════════════════════════════════════════════════════════════ */
.vocab-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 64px 24px;
    background: var(--v-card-bg);
    border: 1px solid var(--v-card-border);
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--v-shadow);
}
.vocab-empty-icon {
    font-size: 48px;
    color: var(--v-text-muted);
    opacity: 0.5;
    margin-bottom: 16px;
    display: block;
}
.vocab-empty-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--v-text);
    margin: 0 0 6px;
}
.vocab-empty-desc {
    color: var(--v-text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* ══════════════════════════════════════════════════════════════════════════
   SECTION HEADER (week / chapter badge)
══════════════════════════════════════════════════════════════════════════ */
.vocab-section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}
.vocab-section-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--v-surface);
    border: 1px solid var(--v-accent-border);
    border-radius: 10px;
    padding: 6px 16px;
    font-size: 0.82rem;
    font-weight: 800;
    color: var(--v-accent-dark);
    box-shadow: var(--v-shadow);
}
[data-theme="dark"] .vocab-section-badge {
    color: var(--v-accent-light);
}
.vocab-section-badge i {
    font-size: 0.85rem;
}

/* ══════════════════════════════════════════════════════════════════════════
   CONTENT CONTAINERS
══════════════════════════════════════════════════════════════════════════ */
.vocab-content-area {
    padding: 28px 0 40px;
}
.vocab-section-group {
    margin-bottom: 36px;
}
.vocab-section-group:last-child {
    margin-bottom: 0;
}

/* Feed container (grammar only) */
.grammar-feed-area {
    padding: 12px 0 40px;
}

/* Feed toolbar */
.grammar-feed-form {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    flex-wrap: wrap;
}
.grammar-feed-form .vocab-search-input-wrap {
    flex: 1;
    min-width: 200px;
}
.grammar-feed-form .vocab-search-input {
    width: 100%;
    padding-left: 38px;
}

/* Feed level select */
.grammar-feed-level {
    min-width: 145px;
}
.grammar-feed-select {
    background: var(--v-input-bg);
    border: 1px solid var(--v-input-border);
    border-radius: 10px;
    padding: 9px 32px 9px 14px;
    color: var(--v-text);
    font-size: 0.85rem;
    font-weight: 600;
    width: 100%;
    outline: none;
    cursor: pointer;
    transition: all 0.2s;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}
.grammar-feed-select:focus {
    border-color: var(--v-accent);
    box-shadow: 0 0 0 3px var(--v-accent-soft);
}

/* ══════════════════════════════════════════════════════════════════════════
   JLPT BADGES (grammar + vocabulary)
══════════════════════════════════════════════════════════════════════════ */
.jlpt-badge {
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.jlpt-badge-n5 { background: #d1fae5 !important; color: #059669 !important; }
.jlpt-badge-n4 { background: #dbeafe !important; color: #2563eb !important; }
.jlpt-badge-n3 { background: #fef3c7 !important; color: #d97706 !important; }
.jlpt-badge-n2 { background: #fed7aa !important; color: #ea580c !important; }
.jlpt-badge-n1 { background: #fee2e2 !important; color: #dc2626 !important; }

[data-theme="dark"] .jlpt-badge-n5 { background: rgba(16, 185, 129, 0.18) !important; color: #34d399 !important; border: 1px solid rgba(16, 185, 129, 0.3) !important; }
[data-theme="dark"] .jlpt-badge-n4 { background: rgba(59, 130, 246, 0.18) !important; color: #60a5fa !important; border: 1px solid rgba(59, 130, 246, 0.3) !important; }
[data-theme="dark"] .jlpt-badge-n3 { background: rgba(245, 158, 11, 0.18) !important; color: #fbbf24 !important; border: 1px solid rgba(245, 158, 11, 0.3) !important; }
[data-theme="dark"] .jlpt-badge-n2 { background: rgba(249, 115, 22, 0.18) !important; color: #fb923c !important; border: 1px solid rgba(249, 115, 22, 0.3) !important; }
[data-theme="dark"] .jlpt-badge-n1 { background: rgba(239, 68, 68, 0.18) !important; color: #f87171 !important; border: 1px solid rgba(239, 68, 68, 0.3) !important; }

/* ══════════════════════════════════════════════════════════════════════════
   GRAMMAR FEED CARD — premium grammar point card
══════════════════════════════════════════════════════════════════════════ */
.grammar-feed-card {
    cursor: default !important;
    min-height: 220px;
}
.grammar-feed-card .vocab-card-title {
    font-size: 1.5rem;
    margin-bottom: 4px;
    font-family: 'Noto Sans JP', sans-serif;
}
.grammar-feed-card:hover .vocab-card-title {
    color: var(--v-accent-light);
}
[data-theme="dark"] .grammar-feed-card:hover .vocab-card-title {
    color: var(--v-accent-light);
}
[data-theme="light"] .grammar-feed-card:hover .vocab-card-title {
    color: var(--v-accent-dark);
}

.grammar-feed-meaning {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--v-accent);
    margin-bottom: 12px;
}
.grammar-feed-example {
    background: var(--v-input-bg);
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 14px;
    border-left: 3px solid var(--v-accent);
    flex: 1;
}
.grammar-feed-example-jp {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--v-text);
    margin-bottom: 4px;
    line-height: 1.5;
    font-family: 'Noto Sans JP', sans-serif;
}
.grammar-feed-example-vi {
    font-size: 0.78rem;
    color: var(--v-text-secondary);
    font-style: italic;
    margin: 0;
}

/* ══════════════════════════════════════════════════════════════════════════
   PAGINATION
══════════════════════════════════════════════════════════════════════════ */
.grammar-pagination {
    display: flex;
    justify-content: center;
    padding-top: 36px;
}
.grammar-pagination ul {
    display: flex;
    align-items: center;
    gap: 5px;
    list-style: none;
    padding: 0;
    margin: 0;
    flex-wrap: wrap;
    justify-content: center;
}
.grammar-pagination li a,
.grammar-pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.85rem;
    background: var(--v-card-bg);
    border: 1px solid var(--v-card-border);
    color: var(--v-text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    box-shadow: var(--v-shadow);
}
.grammar-pagination li a:hover {
    background: var(--v-input-bg);
    border-color: var(--v-accent-border);
    color: var(--v-text);
    transform: translateY(-1px);
}
.grammar-pagination li.active a {
    background: linear-gradient(135deg, var(--v-accent-dark), var(--v-accent));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 12px rgba(16,185,129,0.25);
}
.grammar-pagination li.active a:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(16,185,129,0.35);
}
.grammar-pagination li.disabled a,
.grammar-pagination li.dots span {
    background: transparent;
    border-color: transparent;
    color: var(--v-text-muted);
    cursor: default;
    box-shadow: none;
    transform: none;
}

/* ══════════════════════════════════════════════════════════════════════════
   KANJI DECK CARDS — JLPT level selection (shared: kanji, kanji-jlpt)
══════════════════════════════════════════════════════════════════════════ */

/* ─── Loading spinner ── */
.vocab-loading {
    text-align: center;
    padding: 60px 20px;
}
.vocab-loading-spinner {
    width: 44px;
    height: 44px;
    border: 4px solid var(--v-card-border);
    border-top-color: var(--v-accent);
    border-radius: 50%;
    animation: vocabSpin 0.7s linear infinite;
    margin: 0 auto 16px;
}
@keyframes vocabSpin {
    to { transform: rotate(360deg); }
}
.vocab-loading-text {
    color: var(--v-text-muted);
    font-weight: 700;
    font-size: 0.9rem;
    margin: 0;
}

/* ─── Deck card (kanji JLPT level selection) ── */
.vocab-deck-card {
    cursor: pointer;
}
.vocab-deck-card.deck-card-disabled {
    cursor: default;
    opacity: 0.75;
    background: var(--v-card-bg, #fff);
    border-color: var(--v-card-border, #e5e7eb);
}
.vocab-deck-card.deck-card-disabled:hover {
    border-color: var(--v-card-border, #e5e7eb);
    transform: none;
    box-shadow: none;
}
.vocab-deck-card .vocab-card-cta.cta-disabled {
    background: var(--v-input-bg, #f3f4f6);
    border-color: var(--v-card-border, #e5e7eb);
    color: var(--v-text-muted, #9ca3af);
    cursor: default;
    pointer-events: none;
}
.vocab-deck-card .vocab-card-top {
    margin-bottom: 14px;
}
.deck-level-icon {
    font-size: 1.6rem;
    line-height: 1;
    margin-right: 4px;
}
.deck-level-name {
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--v-text);
    flex: 1;
}
.deck-count-pill {
    background: var(--v-accent-soft);
    color: var(--v-accent-dark);
    padding: 3px 11px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.75rem;
    white-space: nowrap;
    border: 1px solid var(--v-accent-border);
}
[data-theme="dark"] .deck-count-pill {
    color: var(--v-accent-light);
}

/* ─── Kanji preview strip ── */
.deck-kanji-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 14px;
    min-height: 24px;
}
.deck-char-chip {
    font-family: 'Noto Sans JP', 'Zen Maru Gothic', serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--v-text-secondary);
    background: var(--v-input-bg);
    padding: 2px 7px;
    border-radius: 7px;
    line-height: 1.3;
    transition: all 0.2s;
}
.vocab-card:hover .deck-char-chip {
    background: var(--v-accent-soft);
    color: var(--v-accent-dark);
}
.deck-char-more {
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--v-text-muted);
    display: flex;
    align-items: center;
    padding: 2px 4px;
}
.deck-desc {
    font-size: 0.82rem;
    color: var(--v-text-secondary);
    line-height: 1.5;
    margin: 0 0 14px;
    font-weight: 500;
}

/* ─── Flashcard view (kanji-jlpt exam cards) ── */
.flashcard-exam-view {
    padding: 28px 0 40px;
}
.flashcard-exam-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}
.flashcard-exam-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--v-text);
    margin: 0;
}
.flashcard-exam-subtitle {
    font-size: 0.88rem;
    color: var(--v-text-secondary);
    margin: 2px 0 0;
}
.flashcard-exam-tabs {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.flashcard-exam-tab {
    background: var(--v-surface);
    border: 1px solid var(--v-card-border);
    border-radius: 10px;
    padding: 7px 16px;
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--v-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}
.flashcard-exam-tab:hover {
    border-color: var(--v-accent-border);
    color: var(--v-accent-dark);
}
.flashcard-exam-tab.active {
    background: var(--v-accent-soft);
    border-color: var(--v-accent-border);
    color: var(--v-accent-dark);
}
.flashcard-exam-tab .tab-count {
    font-size: 0.7rem;
    font-weight: 700;
    background: var(--v-card-border);
    border-radius: 999px;
    padding: 1px 7px;
    min-width: 22px;
    text-align: center;
}
.flashcard-exam-tab.active .tab-count {
    background: var(--v-accent);
    color: #fff;
}

/* ─── Exam flashcard card ── */
.exam-card {
    background: var(--v-card-bg);
    border: 1px solid var(--v-card-border);
    border-radius: 16px;
    padding: 18px;
    cursor: pointer;
    transition: all 0.3s;
    height: 100%;
    box-shadow: var(--v-shadow);
}
.exam-card:hover {
    transform: translateY(-3px);
    border-color: var(--v-accent-border);
    box-shadow: var(--v-shadow-hover);
}
.exam-card.flipped {
    border-color: var(--v-accent);
    background: var(--v-accent-soft);
}
.exam-card-front {
    text-align: center;
    margin-bottom: 10px;
}
.exam-kanji {
    font-family: 'Noto Sans JP', 'Zen Maru Gothic', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--v-text);
    line-height: 1.2;
}
.exam-word {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.82rem;
    color: var(--v-text-secondary);
    font-weight: 600;
    margin-top: 4px;
}
.exam-example {
    font-size: 0.8rem;
    color: var(--v-text-secondary);
    line-height: 1.6;
    background: var(--v-input-bg);
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 10px;
    border-left: 3px solid var(--v-accent);
}
.exam-meta {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}
.exam-freq {
    font-size: 0.7rem;
    font-weight: 800;
    background: #fef2f2;
    color: #dc2626;
    border-radius: 999px;
    padding: 2px 8px;
}
.exam-exams {
    font-size: 0.7rem;
    font-weight: 800;
    background: #eff6ff;
    color: #2563eb;
    border-radius: 999px;
    padding: 2px 8px;
}
.exam-part {
    font-size: 0.68rem;
    font-weight: 800;
    background: #f0fdf4;
    color: #16a34a;
    border-radius: 999px;
    padding: 2px 8px;
    margin-left: auto;
}
.exam-flip-hint {
    text-align: center;
    font-size: 0.7rem;
    color: var(--v-text-muted);
    margin-top: 8px;
    font-weight: 600;
}
.exam-card-back {
    display: none;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 2px dashed var(--v-accent-border);
}
.exam-card-back-title {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--v-accent-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}
.exam-card-back-answer {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--v-accent-dark);
    margin-bottom: 6px;
}
.exam-card-back-question {
    font-size: 0.82rem;
    color: var(--v-text);
    line-height: 1.6;
    background: var(--v-input-bg);
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 8px;
}
.exam-card-back-choices {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}
.exam-choice {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    background: var(--v-input-bg);
    border: 1px solid var(--v-card-border);
    border-radius: 8px;
    padding: 4px 10px;
    color: var(--v-text-secondary);
}
.exam-choice-correct {
    background: #dcfce7;
    border-color: var(--v-accent);
    color: #166534;
}
.exam-card-back-source {
    font-size: 0.7rem;
    color: var(--v-text-muted);
    font-weight: 600;
}

/* ─── Exam view toggle ── */
.exam-view-toggle {
    display: flex;
    gap: 4px;
    background: var(--v-input-bg);
    border-radius: 10px;
    padding: 3px;
}
.exam-view-btn {
    background: transparent;
    border: none;
    border-radius: 8px;
    padding: 6px 10px;
    color: var(--v-text-muted);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
}
.exam-view-btn:hover { color: var(--v-text); }
.exam-view-btn.active {
    background: var(--v-surface);
    color: var(--v-accent-dark);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

/* ─── Exam list view row ── */
.exam-list-row {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 4px 0;
}
.exam-list-kanji {
    font-family: 'Noto Sans JP', 'Zen Maru Gothic', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--v-text);
    min-width: 48px;
    text-align: center;
    flex-shrink: 0;
}
.exam-list-info { flex: 1; min-width: 0; }
.exam-list-word {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.8rem;
    color: var(--v-text-secondary);
    font-weight: 600;
}
.exam-list-meta {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════════════════════
   QUIZ SETUP CARDS — Vocabulary/Grammar quiz selection
══════════════════════════════════════════════════════════════════════════ */
.quiz-setup-page {
    padding: 28px 0 60px;
}
.quiz-setup-header {
    text-align: center;
    margin-bottom: 32px;
}
.quiz-setup-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--v-accent-soft);
    color: var(--v-accent-dark);
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 16px;
}
.quiz-setup-title {
    font-size: 2rem;
    font-weight: 900;
    color: var(--v-text);
    margin: 0 0 8px;
}
.quiz-setup-desc {
    font-size: 0.95rem;
    color: var(--v-text-secondary);
    margin: 0;
}

/* ─── Config card ── */
.quiz-config-card {
    background: var(--v-card-bg);
    border: 1px solid var(--v-card-border);
    border-radius: 18px;
    padding: 28px;
    margin-bottom: 32px;
    box-shadow: var(--v-shadow);
}
.quiz-config-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--v-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.quiz-config-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.quiz-config-btn {
    background: var(--v-input-bg);
    border: 1px solid var(--v-input-border);
    border-radius: 999px;
    padding: 8px 20px;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--v-text);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}
.quiz-config-btn:hover {
    border-color: var(--v-accent-border);
    color: var(--v-accent-dark);
}
.quiz-config-btn.active {
    background: var(--v-accent);
    border-color: var(--v-accent);
    color: #fff;
    box-shadow: 0 4px 12px rgba(16,185,129,0.2);
}
.quiz-config-btn:active {
    transform: scale(0.97);
}

/* ─── Quiz lesson card ── */
.quiz-lesson-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.quiz-lesson-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}
.quiz-lesson-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--v-text);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.quiz-lesson-count {
    font-size: 0.85rem;
    color: var(--v-text-muted);
    font-weight: 600;
}
.quiz-play-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--v-accent-dark), var(--v-accent));
    color: #fff;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.25s;
    box-shadow: 0 4px 12px rgba(16,185,129,0.15);
    border: none;
    cursor: pointer;
}
.quiz-play-all-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(16,185,129,0.3);
}

/* ══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .vocab-hero-section { padding: 20px 0 20px; }
    .vocab-hero-title { font-size: 1.6rem; }
    .vocab-hero-desc { font-size: 0.88rem; }

    .vocab-curr-tabs { flex-wrap: wrap; }
    .vocab-curr-tab { padding: 8px 14px; font-size: 0.8rem; }

    .vocab-toolbar { flex-direction: column; align-items: stretch; }
    .vocab-toolbar-right { margin-left: 0; justify-content: stretch; }
    .vocab-search-input { width: 100%; }

    .vocab-card-grid { grid-template-columns: 1fr; }

    .grammar-feed-form { flex-direction: column; }
    .grammar-feed-form .vocab-search-input-wrap { min-width: 100%; }
    .grammar-feed-level { min-width: 100%; }
}

/* ══════════════════════════════════════════════════════════════════════════
   EXPLICIT LIGHT MODE & DARK MODE CONTRAST OVERRIDES
   Guarantees 100% WCAG 2.1 AA contrast for all cards, toolbars, inputs & badges
══════════════════════════════════════════════════════════════════════════ */

/* ─── Light Mode ─── */
[data-theme="light"] .vocab-workspace-container,
:root:not([data-theme="dark"]) .vocab-workspace-container {
    background: #f0f2f5 !important;
    color: #0f172a !important;
}

[data-theme="light"] .vocab-hero-section,
:root:not([data-theme="dark"]) .vocab-hero-section {
    background: linear-gradient(180deg, #ecfdf5 0%, #f0f2f5 100%) !important;
}

[data-theme="light"] .vocab-toolbar,
:root:not([data-theme="dark"]) .vocab-toolbar {
    background: #ffffff !important;
    border-color: rgba(15, 23, 42, 0.08) !important;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05) !important;
}

[data-theme="light"] .vocab-search-input,
:root:not([data-theme="dark"]) .vocab-search-input {
    background: #f8fafc !important;
    border-color: #cbd5e1 !important;
    color: #0f172a !important;
}

[data-theme="light"] .vocab-search-input::placeholder,
:root:not([data-theme="dark"]) .vocab-search-input::placeholder {
    color: #64748b !important;
}

[data-theme="light"] .vocab-card,
[data-theme="light"] .vocab-deck-card,
:root:not([data-theme="dark"]) .vocab-card,
:root:not([data-theme="dark"]) .vocab-deck-card {
    background: #ffffff !important;
    border-color: rgba(15, 23, 42, 0.09) !important;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04) !important;
}

[data-theme="light"] .vocab-card-title,
:root:not([data-theme="dark"]) .vocab-card-title {
    color: #0f172a !important;
}

[data-theme="light"] .vocab-card-meta,
:root:not([data-theme="dark"]) .vocab-card-meta {
    color: #475569 !important;
}

[data-theme="light"] .vocab-card-badge,
:root:not([data-theme="dark"]) .vocab-card-badge {
    background: #f1f5f9 !important;
    border-color: #cbd5e1 !important;
    color: #334155 !important;
}

[data-theme="light"] .vocab-card-progress-label,
[data-theme="light"] .vocab-card-progress-score,
:root:not([data-theme="dark"]) .vocab-card-progress-label,
:root:not([data-theme="dark"]) .vocab-card-progress-score {
    color: #475569 !important;
}

[data-theme="light"] .vocab-card-progress-score.has-progress,
:root:not([data-theme="dark"]) .vocab-card-progress-score.has-progress {
    color: #059669 !important;
}

[data-theme="light"] .vocab-card-cta,
:root:not([data-theme="dark"]) .vocab-card-cta {
    background: #f8fafc !important;
    border-color: #cbd5e1 !important;
    color: #1e293b !important;
}

[data-theme="light"] .vocab-card:hover .vocab-card-cta,
:root:not([data-theme="dark"]) .vocab-card:hover .vocab-card-cta {
    background: #10b981 !important;
    border-color: #10b981 !important;
    color: #ffffff !important;
}

/* ─── Dark Mode ─── */
[data-theme="dark"] .vocab-workspace-container,
html.dark .vocab-workspace-container {
    background: #0b0f17 !important;
    color: #f8fafc !important;
}

[data-theme="dark"] .vocab-hero-section,
html.dark .vocab-hero-section {
    background: linear-gradient(180deg, #0b1220 0%, #0b0f17 100%) !important;
}

[data-theme="dark"] .vocab-toolbar,
html.dark .vocab-toolbar {
    background: #161d2b !important;
    border-color: rgba(255, 255, 255, 0.12) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3) !important;
}

[data-theme="dark"] .vocab-search-input,
html.dark .vocab-search-input {
    background: #0f1624 !important;
    border-color: rgba(255, 255, 255, 0.14) !important;
    color: #f8fafc !important;
}

[data-theme="dark"] .vocab-search-input::placeholder,
html.dark .vocab-search-input::placeholder {
    color: #94a3b8 !important;
}

[data-theme="dark"] .vocab-card,
[data-theme="dark"] .vocab-deck-card,
html.dark .vocab-card,
html.dark .vocab-deck-card {
    background: #161d2b !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25) !important;
}

[data-theme="dark"] .vocab-card-title,
html.dark .vocab-card-title {
    color: #f8fafc !important;
}

[data-theme="dark"] .vocab-card-meta,
html.dark .vocab-card-meta {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .vocab-card-badge,
html.dark .vocab-card-badge {
    background: #0f1624 !important;
    border-color: rgba(255, 255, 255, 0.14) !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .vocab-card-progress-label,
[data-theme="dark"] .vocab-card-progress-score,
html.dark .vocab-card-progress-label,
html.dark .vocab-card-progress-score {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .vocab-card-progress-score.has-progress,
html.dark .vocab-card-progress-score.has-progress {
    color: #34d399 !important;
}

[data-theme="dark"] .vocab-card-preview,
html.dark .vocab-card-preview {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .vocab-card-cta,
html.dark .vocab-card-cta {
    background: #0f1624 !important;
    border-color: rgba(255, 255, 255, 0.14) !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .vocab-card:hover .vocab-card-cta,
html.dark .vocab-card:hover .vocab-card-cta {
    background: #10b981 !important;
    border-color: #10b981 !important;
    color: #ffffff !important;
}

/* ─── High specificity badge overrides to prevent reset ─── */
[data-theme="light"] .vocab-card-badge.jlpt-badge-n5,
:root:not([data-theme="dark"]) .vocab-card-badge.jlpt-badge-n5 { background: #d1fae5 !important; color: #059669 !important; border: 1px solid rgba(16, 185, 129, 0.25) !important; }
[data-theme="light"] .vocab-card-badge.jlpt-badge-n4,
:root:not([data-theme="dark"]) .vocab-card-badge.jlpt-badge-n4 { background: #dbeafe !important; color: #2563eb !important; border: 1px solid rgba(59, 130, 246, 0.25) !important; }
[data-theme="light"] .vocab-card-badge.jlpt-badge-n3,
:root:not([data-theme="dark"]) .vocab-card-badge.jlpt-badge-n3 { background: #fef3c7 !important; color: #d97706 !important; border: 1px solid rgba(245, 158, 11, 0.25) !important; }
[data-theme="light"] .vocab-card-badge.jlpt-badge-n2,
:root:not([data-theme="dark"]) .vocab-card-badge.jlpt-badge-n2 { background: #fed7aa !important; color: #ea580c !important; border: 1px solid rgba(249, 115, 22, 0.25) !important; }
[data-theme="light"] .vocab-card-badge.jlpt-badge-n1,
:root:not([data-theme="dark"]) .vocab-card-badge.jlpt-badge-n1 { background: #fee2e2 !important; color: #dc2626 !important; border: 1px solid rgba(239, 68, 68, 0.25) !important; }

[data-theme="dark"] .vocab-card-badge.jlpt-badge-n5,
html.dark .vocab-card-badge.jlpt-badge-n5 { background: rgba(16, 185, 129, 0.18) !important; color: #34d399 !important; border: 1px solid rgba(16, 185, 129, 0.3) !important; }
[data-theme="dark"] .vocab-card-badge.jlpt-badge-n4,
html.dark .vocab-card-badge.jlpt-badge-n4 { background: rgba(59, 130, 246, 0.18) !important; color: #60a5fa !important; border: 1px solid rgba(59, 130, 246, 0.3) !important; }
[data-theme="dark"] .vocab-card-badge.jlpt-badge-n3,
html.dark .vocab-card-badge.jlpt-badge-n3 { background: rgba(245, 158, 11, 0.18) !important; color: #fbbf24 !important; border: 1px solid rgba(245, 158, 11, 0.3) !important; }
[data-theme="dark"] .vocab-card-badge.jlpt-badge-n2,
html.dark .vocab-card-badge.jlpt-badge-n2 { background: rgba(249, 115, 22, 0.18) !important; color: #fb923c !important; border: 1px solid rgba(249, 115, 22, 0.3) !important; }
[data-theme="dark"] .vocab-card-badge.jlpt-badge-n1,
html.dark .vocab-card-badge.jlpt-badge-n1 { background: rgba(239, 68, 68, 0.18) !important; color: #f87171 !important; border: 1px solid rgba(239, 68, 68, 0.3) !important; }