/* Smart Revision Engine Styles - Google Material 3 Aesthetic */

/* --- HOME PAGE GOOGLE MATERIAL PREMIUM CARD --- */
.smart-revision-home-card {
    background: linear-gradient(135deg, rgba(20, 24, 33, 0.95) 0%, rgba(32, 38, 52, 0.95) 100%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    padding: 20px 24px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.smart-revision-home-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: linear-gradient(180deg, #ff5252 0%, #ffca28 50%, #8ab4f8 100%);
    border-radius: 6px 0 0 6px;
}

.smart-revision-home-card:hover {
    transform: translateY(-3px);
    border-color: rgba(138, 180, 248, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(138, 180, 248, 0.15);
}

.srh-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.srh-title-group {
    display: flex;
    align-items: center;
    gap: 14px;
}

.srh-icon-box {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(138, 180, 248, 0.2) 0%, rgba(138, 180, 248, 0.05) 100%);
    border: 1px solid rgba(138, 180, 248, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8ab4f8;
    font-size: 1.3rem;
}

.srh-title-group h3 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: #e8eaed;
    letter-spacing: 0.2px;
}

.srh-title-group p {
    margin: 3px 0 0 0;
    font-size: 0.82rem;
    color: #9aa0a6;
}

.srh-badge-launch {
    font-size: 0.85rem;
    font-weight: 600;
    color: #8ab4f8;
    background: rgba(138, 180, 248, 0.1);
    padding: 8px 14px;
    border-radius: 20px;
    border: 1px solid rgba(138, 180, 248, 0.25);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: 0.2s;
}

.smart-revision-home-card:hover .srh-badge-launch {
    background: #8ab4f8;
    color: #121318;
}

.srh-badges-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.rev-pill {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #e8eaed;
}

.pill-red { border-color: rgba(255, 82, 82, 0.4); color: #ff8a80; background: rgba(255, 82, 82, 0.1); }
.pill-yellow { border-color: rgba(255, 202, 40, 0.4); color: #ffe082; background: rgba(255, 202, 40, 0.1); }
.pill-star { border-color: rgba(255, 215, 0, 0.4); color: #ffd700; background: rgba(255, 215, 0, 0.1); }
.pill-purple { border-color: rgba(186, 104, 200, 0.4); color: #e1bee7; background: rgba(186, 104, 200, 0.1); }


/* --- VAULTS GRID VIEW (HUB) --- */
.rev-hub-header {
    margin-bottom: 24px;
}

.rev-hub-intro {
    font-size: 0.95rem;
    color: #9aa0a6;
    line-height: 1.5;
    margin: 0;
}

.rev-vaults-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}

.vault-card {
    background: #18191c;
    border: 1px solid #2d3139;
    border-radius: 16px;
    padding: 22px;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 140px;
}

.vault-card:hover {
    transform: translateY(-3px);
    border-color: #5f6368;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.vault-card.full-width {
    grid-column: 1 / -1;
}

.vault-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.vault-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.icon-red { background: rgba(255, 82, 82, 0.15); color: #ff5252; }
.icon-gold { background: rgba(255, 202, 40, 0.15); color: #ffca28; }
.icon-blue { background: rgba(66, 165, 245, 0.15); color: #42a5f5; }
.icon-star { background: rgba(255, 215, 0, 0.15); color: #ffd700; }
.icon-folder { background: rgba(76, 175, 80, 0.15); color: #4caf50; }
.icon-emerald { background: rgba(0, 230, 118, 0.15); color: #00e676; }
.icon-purple { background: rgba(171, 71, 188, 0.15); color: #ab47bc; }

.vault-badge {
    background: #282a30;
    color: #e8eaed;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 12px;
    border: 1px solid #3c4048;
}

.vault-body h4 {
    margin: 0 0 6px 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: #f1f3f4;
}

.vault-body p {
    margin: 0;
    font-size: 0.85rem;
    color: #9aa0a6;
}


/* --- VAULT DETAIL VIEW --- */
.vd-header {
    margin-bottom: 24px;
    background: #18191c;
    border-radius: 16px;
    padding: 20px 24px;
    border: 1px solid #2d3139;
}

.vd-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.vd-title-bar h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
    color: #e8eaed;
}

.vd-clear-top-btn {
    background: rgba(244, 67, 54, 0.12);
    color: #ff8a80;
    border: 1px solid rgba(244, 67, 54, 0.35);
    padding: 8px 16px;
    border-radius: 12px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.vd-clear-top-btn:hover {
    background: #f44336;
    color: #ffffff;
    border-color: #f44336;
    box-shadow: 0 4px 14px rgba(244, 67, 54, 0.4);
}

.vd-actions-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ▶️ Watch Videos — same shape as the Practice/Test actions so the row reads
   as one set of three. */
.btn-action-video {
    flex: 1;
    min-width: 200px;
    background: linear-gradient(135deg, #42a5f5 0%, #1565c0 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.98rem;
    padding: 14px 20px;
    border: none;
    border-radius: 28px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(21, 101, 192, 0.3);
    transition: 0.22s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-action-video:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(21, 101, 192, 0.45);
}

.btn-action-practice {
    flex: 1;
    min-width: 200px;
    background: linear-gradient(135deg, #fbc02d 0%, #f57f17 100%);
    color: #121318;
    font-weight: 700;
    font-size: 0.98rem;
    padding: 14px 20px;
    border: none;
    border-radius: 28px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(245, 127, 23, 0.3);
    transition: 0.22s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-action-practice:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 127, 23, 0.45);
}

.btn-action-test {
    flex: 1;
    min-width: 200px;
    background: linear-gradient(135deg, #ff5252 0%, #d32f2f 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.98rem;
    padding: 14px 20px;
    border: none;
    border-radius: 28px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(211, 47, 47, 0.35);
    transition: 0.22s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-action-test:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(211, 47, 47, 0.5);
}

/* --- QUESTION LIST CARDS --- */
.vd-question-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.vd-card {
    background: #18191c;
    border: 1px solid #2d3139;
    border-radius: 16px;
    padding: 20px 22px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.vd-card:hover {
    transform: scale(1.01) translateY(-2px);
    border-color: #5f6368;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

.vd-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 10px;
}

.vd-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
}

.vd-qnum-pill {
    background: #252830;
    border: 1px solid #3a3f4d;
    color: #8ab4f8;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 12px;
}

.vd-topic-text {
    font-size: 0.85rem;
    color: #9aa0a6;
}

.vd-tag-pill {
    background: rgba(255, 82, 82, 0.12);
    color: #ff8a80;
    border: 1px solid rgba(255, 82, 82, 0.3);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
}

.vd-card-body {
    font-size: 0.98rem;
    line-height: 1.55;
    color: #e8eaed;
    margin-bottom: 10px;
}

/* --- OPTIONS DRAWER & INTERACTIVE STATE --- */
.vd-options-container {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid #2d3139;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.vd-option-item {
    background: #23262e;
    border: 1px solid #353945;
    border-radius: 12px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
    color: #e8eaed;
    transition: all 0.2s ease;
    cursor: pointer;
}

.vd-option-item:hover {
    background: #2a2e38;
    border-color: #8ab4f8;
}

.vd-option-circle {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid #5f6368;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: #9aa0a6;
    flex-shrink: 0;
}

/* Correct Option Style */
.vd-option-item.opt-correct {
    background: rgba(76, 175, 80, 0.18) !important;
    border-color: #4caf50 !important;
    color: #a5d6a7 !important;
}

.vd-option-item.opt-correct .vd-option-circle {
    background: #4caf50;
    color: #121318;
    border-color: #4caf50;
}

/* Incorrect Option Style */
.vd-option-item.opt-incorrect {
    background: rgba(244, 67, 54, 0.18) !important;
    border-color: #f44336 !important;
    color: #ef9a9a !important;
}

.vd-option-item.opt-incorrect .vd-option-circle {
    background: #f44336;
    color: #ffffff;
    border-color: #f44336;
}

/* --- BULB EXPLANATION BUTTON & BOX --- */
.vd-bulb-btn-container {
    margin-top: 14px;
}

.vd-bulb-btn {
    background: rgba(255, 202, 40, 0.12);
    border: 1px solid rgba(255, 202, 40, 0.35);
    color: #ffca28;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 10px 18px;
    border-radius: 20px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: 0.22s;
}

.vd-bulb-btn:hover {
    background: #ffca28;
    color: #121318;
    box-shadow: 0 4px 16px rgba(255, 202, 40, 0.3);
}

.vd-explanation-box {
    margin-top: 12px;
    background: #20232a;
    border-left: 4px solid #ffca28;
    border-radius: 8px;
    padding: 14px 18px;
    font-size: 0.92rem;
    line-height: 1.6;
    color: #e8eaed;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* --- VAULT SET SELECTOR MODAL --- */
.vsm-sets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 14px;
    max-height: 380px;
    overflow-y: auto;
    padding: 4px;
}

.vsm-set-btn {
    background: #20232c;
    border: 1px solid #333742;
    border-radius: 14px;
    padding: 16px 14px;
    text-align: center;
    cursor: pointer;
    transition: all 0.22s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.vsm-set-btn:hover {
    transform: translateY(-3px);
    border-color: #8ab4f8;
    background: #282d3a;
    box-shadow: 0 8px 24px rgba(138, 180, 248, 0.2);
}

.vsm-set-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #8ab4f8;
}

.vsm-set-btn:hover .vsm-set-title {
    color: #ffffff;
}

.vsm-set-desc {
    font-size: 0.82rem;
    color: #9aa0a6;
}

.streak-badge-header {
    background: rgba(255, 152, 0, 0.14);
    border: 1px solid rgba(255, 152, 0, 0.35);
    color: #ffb74d;
    padding: 8px 18px;
    border-radius: 24px;
    font-weight: 700;
    font-size: 0.92rem;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* --- DASHBOARD CARDS & IMPROVEMENT METRICS --- */
.rev-dashboard-card {
    background: #18191c;
    border: 1px solid #2b2f3a;
    border-radius: 20px;
    padding: 22px;
    margin-bottom: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.rev-metrics-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 14px;
}

.metric-box {
    background: #20232c;
    border: 1px solid #333742;
    border-radius: 16px;
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.metric-val {
    font-size: 1.65rem;
    font-weight: 800;
    color: #ffffff;
}

.box-green .metric-val { color: #81c784; }
.box-orange .metric-val { color: #ffb74d; }
.box-purple .metric-val { color: #b388ff; }

.metric-label {
    font-size: 0.82rem;
    color: #9aa0a6;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* --- DAILY 50-Q DRILL CARD --- */
.rev-drill-card {
    background: linear-gradient(135deg, #1f222d 0%, #171820 100%);
    border: 1px solid #383d4c;
}

.drill-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 12px;
}

.drill-title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: #e8eaed;
}

.drill-sub {
    margin: 4px 0 0 0;
    font-size: 0.86rem;
    color: #9aa0a6;
}

.drill-progress-badge {
    background: rgba(255, 202, 40, 0.12);
    border: 1px solid rgba(255, 202, 40, 0.3);
    color: #ffca28;
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.84rem;
}

.drill-ratio-pills {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin: 18px 0;
}

.ratio-pill {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.pill-red { background: rgba(244, 67, 54, 0.15); color: #ff8a80; border: 1px solid rgba(244, 67, 54, 0.3); }
.pill-orange { background: rgba(255, 152, 0, 0.15); color: #ffcc80; border: 1px solid rgba(255, 152, 0, 0.3); }
.pill-blue { background: rgba(33, 150, 243, 0.15); color: #90caf9; border: 1px solid rgba(33, 150, 243, 0.3); }
.pill-green { background: rgba(76, 175, 80, 0.15); color: #a5d6a7; border: 1px solid rgba(76, 175, 80, 0.3); }

.drill-actions-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.btn-drill-practice {
    flex: 1;
    min-width: 210px;
    background: linear-gradient(135deg, #fbc02d 0%, #f57f17 100%);
    color: #121318;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 14px 20px;
    border: none;
    border-radius: 28px;
    cursor: pointer;
    transition: 0.22s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 16px rgba(245, 127, 23, 0.35);
}

.btn-drill-practice:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 127, 23, 0.5);
}

.btn-drill-test {
    flex: 1;
    min-width: 210px;
    background: linear-gradient(135deg, #ff5252 0%, #d32f2f 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 14px 20px;
    border: none;
    border-radius: 28px;
    cursor: pointer;
    transition: 0.22s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 16px rgba(211, 47, 47, 0.35);
}

.btn-drill-test:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(211, 47, 47, 0.5);
}

/* --- SPACED REPETITION CARD --- */
.rev-spaced-card {
    background: linear-gradient(135deg, #151a28 0%, #111420 100%);
    border: 1px solid rgba(61, 90, 255, 0.35);
    box-shadow: 0 4px 24px rgba(61, 90, 255, 0.15);
}

.spaced-due-tag-pill {
    background: rgba(61, 90, 255, 0.2);
    border: 1px solid #3d5aff;
    color: #8ab4f8;
    padding: 6px 16px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.86rem;
}

.btn-spaced-launch:hover {
    background: #3d5aff !important;
    color: #ffffff !important;
    box-shadow: 0 4px 16px rgba(61, 90, 255, 0.4);
}

.btn-spaced-test:hover {
    background: rgba(61, 90, 255, 0.35) !important;
    border-color: #5b75ff !important;
    box-shadow: 0 4px 16px rgba(61, 90, 255, 0.4);
}

/* =========================================================================
   SMART REVISION v2 — configurable target, review forecast, topic report,
   new vaults, and the searchable/paged vault list.
   ========================================================================= */

/* --- Editable daily target --- */
.drill-goal-btn {
    margin-left: 10px;
    background: rgba(255, 202, 40, 0.12);
    border: 1px solid rgba(255, 202, 40, 0.35);
    color: #ffca28;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 16px;
    cursor: pointer;
    transition: 0.2s;
    vertical-align: middle;
}

.drill-goal-btn:hover {
    background: rgba(255, 202, 40, 0.22);
    border-color: #ffca28;
}

.drill-goal-btn i {
    font-size: 0.68rem;
    opacity: 0.8;
    margin-left: 3px;
}

.drill-progress-track {
    height: 8px;
    background: #23262f;
    border: 1px solid #333744;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 14px;
}

.drill-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #fbc02d, #f57f17);
    border-radius: 8px;
    transition: width 0.4s ease;
}

.pill-crimson { background: rgba(233, 30, 99, 0.15); color: #f48fb1; border: 1px solid rgba(233, 30, 99, 0.3); }
.ratio-pill.pill-purple { background: rgba(171, 71, 188, 0.15); color: #e1bee7; border: 1px solid rgba(171, 71, 188, 0.3); }

/* --- 7-day review forecast --- */
.rev-forecast-wrap {
    margin: 18px 0;
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid #2c3145;
    border-radius: 14px;
}

.rev-forecast-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: #9aa0a6;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 12px;
}

.rev-forecast-strip {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    align-items: end;
}

.fc-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.fc-count {
    font-size: 0.78rem;
    font-weight: 700;
    color: #9aa0a6;
}

.fc-bar-track {
    width: 100%;
    height: 58px;
    display: flex;
    align-items: flex-end;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
}

.fc-bar {
    width: 100%;
    background: linear-gradient(180deg, #5b75ff, #3d5aff);
    border-radius: 6px;
    min-height: 4px;
    transition: height 0.35s ease;
}

.fc-day {
    font-size: 0.72rem;
    color: #787d8a;
    font-weight: 600;
}

.fc-col.is-today .fc-count { color: #ffca28; }
.fc-col.is-today .fc-day { color: #ffca28; }
.fc-col.is-today .fc-bar { background: linear-gradient(180deg, #ffca28, #f57f17); }

/* --- Weakest topics report --- */
.rev-topics-card {
    background: linear-gradient(135deg, #221a1c 0%, #161214 100%);
    border: 1px solid rgba(242, 139, 130, 0.3);
}

.rev-weak-topics {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.wt-row {
    padding: 12px 14px;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid #33272a;
    border-radius: 12px;
    cursor: pointer;
    transition: 0.2s;
}

.wt-row:hover {
    border-color: #f28b82;
    transform: translateX(3px);
}

.wt-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.wt-name {
    font-size: 0.92rem;
    font-weight: 600;
    color: #e8eaed;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.wt-acc {
    font-size: 0.85rem;
    font-weight: 800;
    flex-shrink: 0;
}

.wt-track {
    height: 6px;
    background: #23262f;
    border-radius: 6px;
    overflow: hidden;
}

.wt-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.4s ease;
}

.wt-meta {
    margin-top: 7px;
    font-size: 0.76rem;
    color: #787d8a;
}

.tone-ok { color: #81c784; }
.tone-warn { color: #ffb74d; }
.tone-bad { color: #f28b82; }
.wt-fill.tone-ok { background: linear-gradient(90deg, #66bb6a, #43a047); }
.wt-fill.tone-warn { background: linear-gradient(90deg, #ffb74d, #f57c00); }
.wt-fill.tone-bad { background: linear-gradient(90deg, #f28b82, #e53935); }

.rev-empty-note {
    margin: 8px 0 0 0;
    font-size: 0.85rem;
    color: #787d8a;
    font-style: italic;
}

/* --- New vault card tones --- */
.icon-crimson { background: rgba(233, 30, 99, 0.15); color: #ec407a; }
.icon-violet { background: rgba(126, 87, 194, 0.18); color: #b39ddb; }

.vault-card.card-leech:hover { border-color: rgba(233, 30, 99, 0.55); }
.vault-card.card-atrisk:hover { border-color: rgba(126, 87, 194, 0.55); }

/* --- Vault list toolbar (search / sort / count) --- */
.vd-toolbar {
    max-width: 900px;
    margin: 0 auto 14px auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.vd-toolbar:empty { display: none; }

.vd-toolbar-row {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.vd-search-wrap {
    flex: 1;
    min-width: 200px;
    position: relative;
    display: flex;
    align-items: center;
}

.vd-search-wrap i {
    position: absolute;
    left: 14px;
    color: #787d8a;
    font-size: 0.85rem;
    pointer-events: none;
}

.vd-search-wrap input {
    width: 100%;
    background: #1a1b1f;
    border: 1px solid #3c4043;
    border-radius: 24px;
    color: #e8eaed;
    padding: 10px 16px 10px 38px;
    font-size: 0.9rem;
    outline: none;
    transition: 0.2s;
}

.vd-search-wrap input:focus {
    border-color: #8ab4f8;
    box-shadow: 0 0 0 3px rgba(138, 180, 248, 0.12);
}

.vd-sort-select {
    background: #1a1b1f;
    border: 1px solid #3c4043;
    border-radius: 24px;
    color: #e8eaed;
    padding: 10px 14px;
    font-size: 0.86rem;
    cursor: pointer;
    outline: none;
}

.vd-sort-select:focus { border-color: #8ab4f8; }

.vd-toolbar-meta {
    justify-content: space-between;
}

.vd-count-pill {
    font-size: 0.8rem;
    font-weight: 700;
    color: #8ab4f8;
    background: rgba(138, 180, 248, 0.1);
    border: 1px solid rgba(138, 180, 248, 0.28);
    padding: 4px 12px;
    border-radius: 16px;
}

.vd-toolbar-note {
    font-size: 0.78rem;
    color: #787d8a;
}

/* --- Empty / no-match states --- */
.vd-empty-state {
    text-align: center;
    padding: 50px 20px;
    background: #18191c;
    border-radius: 16px;
    border: 1px solid #2d3139;
}

.vd-empty-state h4 {
    color: #e8eaed;
    font-size: 1.1rem;
    margin: 0 0 6px 0;
}

.vd-empty-state p {
    color: #9aa0a6;
    font-size: 0.88rem;
    margin: 0;
}

/* --- Paging --- */
.vd-load-more-wrap {
    display: flex;
    justify-content: center;
    padding: 8px 0 20px 0;
}

.vd-load-more-btn {
    background: rgba(138, 180, 248, 0.1);
    border: 1px solid rgba(138, 180, 248, 0.35);
    color: #8ab4f8;
    padding: 11px 26px;
    border-radius: 26px;
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: 0.2s;
}

.vd-load-more-btn:hover {
    background: rgba(138, 180, 248, 0.2);
    border-color: #8ab4f8;
}

.vd-load-more-btn span {
    font-weight: 500;
    opacity: 0.75;
    font-size: 0.8rem;
}

/* --- Card tags + spaced-repetition stage chip --- */
.vd-card-tags {
    display: flex;
    align-items: center;
    gap: 7px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.vd-stage-chip {
    font-size: 0.7rem;
    font-weight: 800;
    padding: 3px 9px;
    border-radius: 12px;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.vd-stage-chip.stage-0 { background: rgba(120, 125, 138, 0.16); color: #9aa0a6; border: 1px solid rgba(120, 125, 138, 0.35); }
.vd-stage-chip.stage-1 { background: rgba(255, 82, 82, 0.14); color: #ff8a80; border: 1px solid rgba(255, 82, 82, 0.32); }
.vd-stage-chip.stage-2 { background: rgba(255, 152, 0, 0.14); color: #ffcc80; border: 1px solid rgba(255, 152, 0, 0.32); }
.vd-stage-chip.stage-3 { background: rgba(33, 150, 243, 0.14); color: #90caf9; border: 1px solid rgba(33, 150, 243, 0.32); }
.vd-stage-chip.stage-4 { background: rgba(126, 87, 194, 0.18); color: #b39ddb; border: 1px solid rgba(126, 87, 194, 0.38); }
.vd-stage-chip.stage-done { background: rgba(0, 230, 118, 0.14); color: #69f0ae; border: 1px solid rgba(0, 230, 118, 0.32); }

/* --- Per-question actions --- */
.vd-card-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed #3c4043;
}

.vd-act-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid #3c4043;
    color: #9aa0a6;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 7px 14px;
    border-radius: 18px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: 0.18s;
}

.vd-act-btn:hover {
    background: rgba(255, 255, 255, 0.09);
    color: #e8eaed;
    border-color: #5f6368;
}

.vd-act-btn.is-on {
    background: rgba(255, 202, 40, 0.14);
    border-color: rgba(255, 202, 40, 0.45);
    color: #ffca28;
}

.vd-act-btn.act-good:hover {
    background: rgba(0, 230, 118, 0.12);
    border-color: rgba(0, 230, 118, 0.45);
    color: #69f0ae;
}

.vd-act-btn.act-danger:hover {
    background: rgba(244, 67, 54, 0.12);
    border-color: rgba(244, 67, 54, 0.45);
    color: #ff8a80;
}

/* Shown instead of fabricated A/B/C/D placeholders when a stored record has no
   options or no explanation. */
.vd-option-missing {
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed #3c4043;
    border-radius: 10px;
    color: #787d8a;
    font-size: 0.84rem;
    font-style: italic;
}

/* Selected-but-unverifiable option: no answer key is stored, so it is marked
   neutral rather than green. */
.vd-option-item.opt-selected {
    background: rgba(138, 180, 248, 0.1);
    border-color: rgba(138, 180, 248, 0.45);
}

/* --- Fix Mix-ups button --- */
.rev-fix-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 16px;
    background: rgba(138, 180, 248, 0.1);
    border: 1px solid rgba(138, 180, 248, 0.35);
    color: #8ab4f8;
    font-size: 0.82rem;
    font-weight: 700;
    border-radius: 20px;
    cursor: pointer;
    transition: 0.2s;
}

.rev-fix-btn:hover:not(:disabled) {
    background: rgba(138, 180, 248, 0.2);
    border-color: #8ab4f8;
}

.rev-fix-btn:disabled {
    opacity: 0.6;
    cursor: default;
}

/* --- Reset button + modal --- */
.rev-reset-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 16px;
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid rgba(244, 67, 54, 0.35);
    color: #ff8a80;
    font-size: 0.82rem;
    font-weight: 700;
    border-radius: 20px;
    cursor: pointer;
    transition: 0.2s;
}

.rev-reset-btn:hover {
    background: rgba(244, 67, 54, 0.2);
    border-color: #f44336;
    color: #ffb0a8;
}

.rev-reset-card {
    max-width: 620px;
    width: 94%;
    padding: 24px;
    border-radius: 20px;
    max-height: 88vh;
    overflow-y: auto;
}

.rev-reset-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.rev-reset-head h3 {
    margin: 0;
    color: #e8eaed;
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 9px;
}

.rev-reset-head h3 i { color: #ff8a80; }

.rev-reset-close {
    background: none;
    border: none;
    color: #9aa0a6;
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 4px;
}

.rev-reset-close:hover { color: #e8eaed; }

.rev-reset-sub {
    margin: 0 0 18px 0;
    color: #9aa0a6;
    font-size: 0.86rem;
}

.rev-reset-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.rev-reset-option {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid #2c3145;
    border-radius: 14px;
}

.rro-icon {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.rev-reset-option.tone-warn { border-color: rgba(255, 152, 0, 0.32); }
.rev-reset-option.tone-warn .rro-icon { background: rgba(255, 152, 0, 0.15); color: #ffb74d; }
.rev-reset-option.tone-info { border-color: rgba(138, 180, 248, 0.32); }
.rev-reset-option.tone-info .rro-icon { background: rgba(138, 180, 248, 0.15); color: #8ab4f8; }
.rev-reset-option.tone-danger { border-color: rgba(244, 67, 54, 0.4); background: rgba(244, 67, 54, 0.06); }
.rev-reset-option.tone-danger .rro-icon { background: rgba(244, 67, 54, 0.16); color: #ff8a80; }

.rro-body { flex: 1; min-width: 0; }

.rro-body h4 {
    margin: 0 0 4px 0;
    font-size: 0.95rem;
    font-weight: 700;
    color: #e8eaed;
}

.rro-body p {
    margin: 0;
    font-size: 0.8rem;
    color: #9aa0a6;
    line-height: 1.45;
}

.rro-count {
    display: inline-block;
    margin-top: 7px;
    font-size: 0.74rem;
    font-weight: 700;
    color: #787d8a;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid #333744;
    border-radius: 12px;
    padding: 3px 10px;
}

.rro-btn {
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid #4a4f5e;
    color: #e8eaed;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 9px 20px;
    border-radius: 20px;
    cursor: pointer;
    transition: 0.2s;
}

.rro-btn:hover {
    background: rgba(244, 67, 54, 0.18);
    border-color: #f44336;
    color: #ffb0a8;
}

.rev-reset-scope {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
    padding: 12px 14px;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid #2c3145;
    border-radius: 12px;
    font-size: 0.84rem;
    color: #9aa0a6;
    cursor: pointer;
}

.rev-reset-scope input {
    width: 17px;
    height: 17px;
    accent-color: #f44336;
    cursor: pointer;
    flex-shrink: 0;
}

.rev-reset-scope b { color: #e8eaed; }

@media (max-width: 640px) {
    .rev-reset-option { flex-wrap: wrap; }
    .rro-btn { width: 100%; margin-top: 4px; }
    .rev-forecast-strip { gap: 5px; }
    .fc-bar-track { height: 46px; }
    .fc-count { font-size: 0.7rem; }
    .fc-day { font-size: 0.64rem; }
    .vd-toolbar { padding: 0 4px; }
    .vd-sort-select { width: 100%; }
    .vd-card-actions { gap: 6px; }
    .vd-act-btn { font-size: 0.72rem; padding: 6px 11px; }
    .drill-goal-btn { display: inline-block; margin: 6px 0 0 0; }
}