/* ====================================================
   JEE Mains Question Bank Pro — Frontend CSS
   ==================================================== */
:root {
    --jee-primary: #2563eb;
    --jee-primary-light: #dbeafe;
    --jee-success: #16a34a;
    --jee-danger: #dc2626;
    --jee-warn: #d97706;
    --jee-gray: #6b7280;
    --jee-bg: #f9fafb;
    --jee-card: #ffffff;
    --jee-border: #e5e7eb;
    --jee-radius: 12px;
    --jee-shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --jee-shadow-lg: 0 10px 25px rgba(0,0,0,.1);
}

.jee-quiz-container {
    max-width: 860px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--jee-bg);
    border-radius: var(--jee-radius);
    overflow: hidden;
    box-shadow: var(--jee-shadow-lg);
}

/* ── Setup Screen ── */
.jee-header {
    background: linear-gradient(135deg, var(--jee-primary) 0%, #1d4ed8 100%);
    color: #fff;
    padding: 36px 32px 28px;
    text-align: center;
}
.jee-logo { font-size: 48px; margin-bottom: 8px; }
.jee-header h2 { margin: 0 0 6px; font-size: 26px; font-weight: 700; }
.jee-subtitle { margin: 0; opacity: .85; font-size: 14px; }

.jee-mode-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 24px 24px 0;
}
.jee-mode-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 16px;
    background: var(--jee-card);
    border: 2px solid var(--jee-border);
    border-radius: var(--jee-radius);
    cursor: pointer;
    transition: all .2s;
    gap: 6px;
}
.jee-mode-card:hover, .jee-mode-card.active {
    border-color: var(--jee-primary);
    background: var(--jee-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--jee-shadow);
}
.jee-mode-icon { font-size: 32px; }
.jee-mode-name { font-weight: 600; font-size: 15px; color: #111827; }
.jee-mode-desc { font-size: 12px; color: var(--jee-gray); text-align: center; }

.jee-options-panel {
    margin: 20px 24px 0;
    padding: 20px;
    background: var(--jee-card);
    border: 1px solid var(--jee-border);
    border-radius: var(--jee-radius);
}
.jee-options-panel h3 { margin: 0 0 16px; font-size: 15px; font-weight: 600; }

.jee-form-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.jee-form-row label { font-size: 13px; font-weight: 500; color: #374151; min-width: 140px; }
.jee-form-row select {
    padding: 8px 12px;
    border: 1px solid var(--jee-border);
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    min-width: 180px;
}

.jee-btn-group { display: flex; gap: 8px; flex-wrap: wrap; }
.jee-pill {
    padding: 6px 16px;
    border: 1px solid var(--jee-border);
    border-radius: 100px;
    background: #fff;
    font-size: 14px;
    cursor: pointer;
    transition: all .15s;
}
.jee-pill.active, .jee-pill:hover {
    background: var(--jee-primary);
    color: #fff;
    border-color: var(--jee-primary);
}

.jee-name-row {
    padding: 16px 24px 0;
}
.jee-name-row input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--jee-border);
    border-radius: 8px;
    font-size: 15px;
    box-sizing: border-box;
    transition: border .2s;
}
.jee-name-row input:focus {
    outline: none;
    border-color: var(--jee-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.jee-btn-start {
    display: block;
    width: calc(100% - 48px);
    margin: 16px 24px 8px;
    padding: 14px;
    background: var(--jee-primary);
    color: #fff;
    border: none;
    border-radius: var(--jee-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
}
.jee-btn-start:hover:not(:disabled) {
    background: #1d4ed8;
    transform: translateY(-1px);
}
.jee-btn-start:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
}

.jee-btn-leaderboard {
    display: block;
    width: calc(100% - 48px);
    margin: 0 24px 24px;
    padding: 11px;
    background: transparent;
    color: var(--jee-primary);
    border: 1px solid var(--jee-primary);
    border-radius: var(--jee-radius);
    font-size: 14px;
    cursor: pointer;
    transition: all .2s;
}
.jee-btn-leaderboard:hover {
    background: var(--jee-primary-light);
}

/* ── Quiz Screen ── */
.jee-quiz-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background: var(--jee-card);
    border-bottom: 1px solid var(--jee-border);
    flex-wrap: wrap;
    gap: 8px;
}
.jee-quiz-info { display: flex; align-items: center; gap: 10px; }
#jee-q-counter { font-weight: 700; font-size: 15px; }
.jee-subject-badge {
    background: var(--jee-primary-light);
    color: var(--jee-primary);
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    text-transform: capitalize;
}
.jee-timer-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 18px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}
.jee-timer-warn { color: var(--jee-danger) !important; animation: jee-pulse .5s infinite; }
@keyframes jee-pulse { 0%,100%{opacity:1} 50%{opacity:.5} }

.jee-score-live { font-size: 13px; color: var(--jee-gray); }

.jee-progress-bar {
    height: 4px;
    background: var(--jee-border);
}
#jee-progress-fill {
    height: 100%;
    background: var(--jee-primary);
    transition: width .3s ease;
}

.jee-question-area {
    padding: 24px;
    background: var(--jee-card);
    min-height: 280px;
}
.jee-q-meta { display: flex; gap: 10px; margin-bottom: 12px; align-items: center; }
.jee-chapter-tag {
    font-size: 12px;
    color: var(--jee-gray);
    background: #f3f4f6;
    padding: 3px 10px;
    border-radius: 100px;
}
.jee-diff-tag { font-size: 12px; font-weight: 600; }

.jee-question-text {
    font-size: 16px;
    line-height: 1.7;
    color: #111827;
    margin-bottom: 20px;
}
.jee-question-text img { max-width: 100%; height: auto; }

.jee-options-list { display: flex; flex-direction: column; gap: 10px; }
.jee-option-btn {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    background: #fff;
    border: 1.5px solid var(--jee-border);
    border-radius: 10px;
    cursor: pointer;
    text-align: left;
    font-size: 15px;
    transition: all .15s;
    line-height: 1.5;
}
.jee-option-btn:hover { border-color: var(--jee-primary); background: var(--jee-primary-light); }
.jee-option-btn.jee-selected {
    border-color: var(--jee-primary);
    background: var(--jee-primary-light);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.jee-opt-letter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 50%;
    background: #f3f4f6;
    font-weight: 700;
    font-size: 13px;
    color: var(--jee-primary);
}
.jee-selected .jee-opt-letter { background: var(--jee-primary); color: #fff; }

.jee-quiz-nav {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: var(--jee-bg);
    border-top: 1px solid var(--jee-border);
    flex-wrap: wrap;
}
.jee-btn-nav {
    padding: 9px 20px;
    border: 1px solid var(--jee-border);
    border-radius: 8px;
    background: var(--jee-card);
    font-size: 14px;
    cursor: pointer;
    transition: all .15s;
    white-space: nowrap;
}
.jee-btn-nav:hover:not(:disabled) { border-color: var(--jee-primary); color: var(--jee-primary); }
.jee-btn-nav:disabled { opacity: .4; cursor: not-allowed; }

.jee-q-palette {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    flex: 1;
}
.jee-palette-btn {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 1.5px solid var(--jee-border);
    background: #fff;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all .1s;
}
.jee-pal-answered { background: var(--jee-success); border-color: var(--jee-success); color: #fff; }
.jee-pal-current { background: var(--jee-primary); border-color: var(--jee-primary); color: #fff; }
.jee-pal-unattempted { background: #fff; }

.jee-submit-row {
    padding: 0 20px 20px;
    background: var(--jee-bg);
}
.jee-btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--jee-success);
    color: #fff;
    border: none;
    border-radius: var(--jee-radius);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all .2s;
}
.jee-btn-submit:hover { background: #15803d; }

/* ── Result Screen ── */
.jee-result-header {
    text-align: center;
    padding: 32px 24px 20px;
    background: var(--jee-card);
}
.jee-result-emoji { font-size: 52px; margin-bottom: 8px; }
.jee-result-header h2 { margin: 0 0 20px; font-size: 24px; }

.jee-scorecard {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}
.jee-score-main { text-align: center; }
#jee-final-score { display: block; font-size: 56px; font-weight: 800; color: var(--jee-primary); line-height: 1; }
#jee-final-max { font-size: 14px; color: var(--jee-gray); }

.jee-score-ring { position: relative; width: 100px; height: 100px; }
.jee-score-ring svg { width: 100%; height: 100%; }
#jee-ring-pct {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 17px;
    font-weight: 700;
    color: var(--jee-primary);
}

.jee-result-stats {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 12px;
    padding: 20px 24px;
    background: var(--jee-bg);
}
.jee-rs-card {
    background: var(--jee-card);
    border-radius: 10px;
    padding: 16px;
    text-align: center;
    border-top: 3px solid transparent;
}
.jee-rs-card span { display: block; font-size: 28px; font-weight: 800; }
.jee-rs-card label { font-size: 12px; color: var(--jee-gray); font-weight: 500; }
.jee-rs-green { border-color: var(--jee-success); }
.jee-rs-green span { color: var(--jee-success); }
.jee-rs-red { border-color: var(--jee-danger); }
.jee-rs-red span { color: var(--jee-danger); }
.jee-rs-gray { border-color: var(--jee-gray); }
.jee-rs-gray span { color: var(--jee-gray); }
.jee-rs-blue { border-color: var(--jee-primary); }
.jee-rs-blue span { color: var(--jee-primary); }

.jee-marking-note {
    text-align: center;
    padding: 10px;
    font-size: 13px;
    color: var(--jee-gray);
    background: var(--jee-bg);
}

/* Solutions */
.jee-solutions { padding: 0 24px 24px; }
.jee-solutions h3 { font-size: 18px; margin-bottom: 16px; }
.jee-sol-item {
    background: var(--jee-card);
    border-radius: 10px;
    border-left: 4px solid var(--jee-border);
    margin-bottom: 16px;
    overflow: hidden;
}
.jee-sol-correct { border-left-color: var(--jee-success); }
.jee-sol-wrong   { border-left-color: var(--jee-danger); }
.jee-sol-skip    { border-left-color: var(--jee-gray); }
.jee-sol-header {
    display: flex;
    justify-content: space-between;
    padding: 10px 16px;
    background: #f9fafb;
    border-bottom: 1px solid var(--jee-border);
    font-size: 13px;
    font-weight: 600;
    flex-wrap: wrap;
    gap: 8px;
}
.jee-wrong { color: var(--jee-danger); }
.jee-sol-q { padding: 12px 16px; font-size: 14px; line-height: 1.6; }
.jee-sol-opts {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0 16px 12px;
}
.jee-sol-opt {
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 13px;
    background: #f3f4f6;
    border: 1px solid transparent;
}
.jee-sol-correct { background: #dcfce7; border-color: var(--jee-success); color: #166534; }
.jee-sol-wrong   { background: #fee2e2; border-color: var(--jee-danger); color: #991b1b; }
.jee-sol-explain {
    padding: 10px 16px 12px;
    font-size: 13px;
    color: #374151;
    background: #fffbeb;
    border-top: 1px solid #fde68a;
}

.jee-result-actions {
    display: flex;
    gap: 12px;
    padding: 0 24px 24px;
}
.jee-btn-retry, .jee-btn-primary {
    flex: 1;
    padding: 12px;
    border-radius: var(--jee-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
}
.jee-btn-retry { background: transparent; border: 1.5px solid var(--jee-border); color: #374151; }
.jee-btn-retry:hover { border-color: var(--jee-primary); color: var(--jee-primary); }
.jee-btn-primary { background: var(--jee-primary); border: none; color: #fff; }
.jee-btn-primary:hover { background: #1d4ed8; }

/* ── Leaderboard Screen ── */
.jee-lb-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--jee-card);
    border-bottom: 1px solid var(--jee-border);
}
.jee-lb-header h2 { margin: 0; font-size: 20px; }
.jee-back-btn {
    padding: 8px 14px;
    border: 1px solid var(--jee-border);
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
    font-size: 13px;
    transition: all .15s;
}
.jee-back-btn:hover { border-color: var(--jee-primary); color: var(--jee-primary); }

.jee-lb-filters {
    display: flex;
    gap: 10px;
    padding: 16px 24px;
    background: var(--jee-bg);
    flex-wrap: wrap;
}
.jee-lb-filters select {
    padding: 8px 12px;
    border: 1px solid var(--jee-border);
    border-radius: 8px;
    font-size: 13px;
    background: #fff;
}

.jee-lb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.jee-lb-table th, .jee-lb-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--jee-border);
}
.jee-lb-table th { background: #f9fafb; font-weight: 600; font-size: 13px; color: var(--jee-gray); }
.jee-lb-top td { background: #fffbeb; }
.jee-lb-score { font-weight: 700; color: var(--jee-primary); font-size: 16px; }

#jee-leaderboard-table { padding: 0 0 24px; }

/* ── Loading ── */
.jee-loading {
    text-align: center;
    padding: 60px 20px;
}
.jee-spinner {
    width: 44px;
    height: 44px;
    border: 4px solid var(--jee-border);
    border-top-color: var(--jee-primary);
    border-radius: 50%;
    animation: jee-spin .7s linear infinite;
    margin: 0 auto 16px;
}
@keyframes jee-spin { to { transform: rotate(360deg); } }

/* ── Standalone Leaderboard Shortcode ── */
.jee-standalone-lb { overflow-x: auto; }
.jee-standalone-lb .jee-lb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    border: 1px solid var(--jee-border);
    border-radius: var(--jee-radius);
    overflow: hidden;
}

/* ── Difficulty Badges (Admin) ── */
.jee-diff-badge {
    padding: 2px 8px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
}
.jee-diff-green  { background:#dcfce7; color:#166534; }
.jee-diff-orange { background:#fef3c7; color:#92400e; }
.jee-diff-red    { background:#fee2e2; color:#991b1b; }
.jee-diff-purple { background:#ede9fe; color:#5b21b6; }

/* ── Responsive ── */
@media (max-width: 600px) {
    .jee-mode-grid { grid-template-columns: 1fr; }
    .jee-result-stats { grid-template-columns: 1fr 1fr; }
    .jee-scorecard { flex-direction: column; }
    .jee-quiz-header { flex-direction: column; gap: 8px; }
    .jee-form-row { flex-direction: column; align-items: flex-start; }
}