/* V-Quiz Analytics — frontend styles
   Card-based layout, blue brand color, responsive grid. */

:root {
    --vqa-blue:        #2563eb;
    --vqa-blue-dark:   #1d4ed8;
    --vqa-blue-light:  #dbeafe;
    --vqa-green:       #22c55e;
    --vqa-yellow:      #f59e0b;
    --vqa-red:         #ef4444;
    --vqa-gray-100:    #f1f5f9;
    --vqa-gray-200:    #e2e8f0;
    --vqa-gray-300:    #cbd5e1;
    --vqa-gray-500:    #64748b;
    --vqa-gray-700:    #334155;
    --vqa-gray-900:    #0f172a;
    --vqa-radius:      10px;
    --vqa-shadow:      0 1px 3px rgba(15,23,42,0.05), 0 1px 2px rgba(15,23,42,0.08);
}

.vqa-container {
    max-width: 1100px;
    margin: 24px auto;
    padding: 0 16px;
    color: var(--vqa-gray-900);
    font-size: 15px;
    line-height: 1.55;
}

.vqa-page-title {
    margin: 0 0 18px;
    font-size: 22px;
    font-weight: 700;
    color: var(--vqa-gray-900);
    display: flex; align-items: baseline; gap: 12px;
}
.vqa-section-title {
    margin: 28px 0 12px;
    font-size: 17px; font-weight: 600;
    color: var(--vqa-gray-700);
    display: flex; align-items: center; justify-content: space-between;
}
.vqa-section-link { font-size: 13px; color: var(--vqa-blue); text-decoration: none; }
.vqa-section-link:hover { text-decoration: underline; }

.vqa-card {
    background: #fff;
    border: 1px solid var(--vqa-gray-200);
    border-radius: var(--vqa-radius);
    padding: 18px;
    box-shadow: var(--vqa-shadow);
    margin-bottom: 16px;
}

/* --- Hero ------------------------------------------------------ */
.vqa-hero {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap;
    background: linear-gradient(135deg, var(--vqa-blue) 0%, #4f46e5 100%);
    color: #fff;
    padding: 24px 24px;
    border-radius: var(--vqa-radius);
    margin-bottom: 18px;
    box-shadow: var(--vqa-shadow);
}
.vqa-hero-left { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.vqa-hero-greeting { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.vqa-hero-name    { font-size: 18px; font-weight: 700; }
.vqa-hero-level   {
    font-size: 12px; padding: 4px 10px; border-radius: 999px;
    background: rgba(255,255,255,0.2);
}
.vqa-streak-banner {
    background: rgba(255,255,255,0.18);
    padding: 6px 14px; border-radius: 999px;
    font-size: 14px; font-weight: 600;
    align-self: flex-start;
}

/* --- CTA button in hero ---------------------------------------- */
.vqa-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 26px;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    border: none;
    border-radius: 999px;
    text-decoration: none;
    box-shadow: 0 6px 14px rgba(234, 88, 12, 0.35), 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    white-space: nowrap;
    flex-shrink: 0;
}
.vqa-cta-btn:hover {
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(234, 88, 12, 0.45), 0 2px 4px rgba(0,0,0,0.1);
    color: #fff;
}
.vqa-cta-btn:focus {
    outline: 3px solid rgba(255,255,255,0.5);
    outline-offset: 2px;
}
.vqa-cta-icon  { font-size: 20px; }
.vqa-cta-label { letter-spacing: 0.02em; }

/* --- Summary cards --------------------------------------------- */
.vqa-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 22px;
}
.vqa-summary-card { text-align: center; }
.vqa-summary-label { color: var(--vqa-gray-500); font-size: 13px; margin-bottom: 6px; }
.vqa-summary-value { font-size: 24px; font-weight: 700; color: var(--vqa-blue); }
.vqa-summary-sub   { color: var(--vqa-gray-500); font-size: 12px; margin-top: 4px; }

/* --- Exam grid ------------------------------------------------- */
.vqa-exam-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 14px;
}
.vqa-exam-card { display: flex; flex-direction: column; gap: 8px; }
.vqa-exam-head { display: flex; flex-direction: column; gap: 2px; }
.vqa-exam-code { font-size: 13px; font-weight: 700; color: var(--vqa-blue); }
.vqa-exam-name { font-size: 14px; color: var(--vqa-gray-700); }
.vqa-exam-meta { display: flex; gap: 14px; font-size: 13px; color: var(--vqa-gray-500); }
.vqa-exam-meta strong { color: var(--vqa-gray-900); }

.vqa-bar-track {
    width: 100%; height: 10px;
    background: var(--vqa-gray-100); border-radius: 999px; overflow: hidden;
}
.vqa-bar-fill {
    height: 100%; border-radius: 999px;
    transition: width 0.4s ease;
}
.vqa-bar-fill-pass { background: var(--vqa-green); }
.vqa-bar-fill-fail { background: var(--vqa-yellow); }
.vqa-bar-label { font-size: 12px; color: var(--vqa-gray-500); margin-top: 4px; }

.vqa-spark { margin-top: 6px; }
.vqa-sparkline { width: 100% !important; height: 40px; max-width: 100%; }

.vqa-exam-actions { display: flex; gap: 8px; margin-top: 8px; }

/* --- Buttons --------------------------------------------------- */
.vqa-btn {
    display: inline-block;
    padding: 8px 14px;
    font-size: 13px; font-weight: 600;
    border: 1px solid var(--vqa-blue);
    background: var(--vqa-blue); color: #fff;
    border-radius: 6px; text-decoration: none;
    transition: background 0.15s ease;
}
.vqa-btn:hover { background: var(--vqa-blue-dark); }
.vqa-btn-secondary {
    background: #fff; color: var(--vqa-blue); border-color: var(--vqa-blue);
}
.vqa-btn-secondary:hover { background: var(--vqa-blue-light); }
.vqa-btn-mini { padding: 4px 10px; font-size: 12px; }

/* --- Notices --------------------------------------------------- */
.vqa-notice {
    background: #fff7ed; border: 1px solid #fdba74; color: #9a3412;
    padding: 14px 16px; border-radius: var(--vqa-radius);
    margin: 18px 0;
}
.vqa-notice p { margin: 6px 0; }

.vqa-empty {
    background: var(--vqa-gray-100); border: 1px dashed var(--vqa-gray-300);
    padding: 24px; text-align: center; color: var(--vqa-gray-500);
    border-radius: var(--vqa-radius); margin: 16px 0;
}

/* --- Badges (dashboard strip + full grid) ---------------------- */
.vqa-badges-strip {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
    margin-bottom: 18px;
}
.vqa-badge {
    text-align: center; padding: 12px 6px;
    border: 1px solid var(--vqa-gray-200);
    border-radius: var(--vqa-radius);
    background: #fff;
}
.vqa-badge-emoji { font-size: 26px; }
.vqa-badge-label { font-size: 12px; font-weight: 600; margin-top: 4px; color: var(--vqa-gray-700); }
.vqa-badge-locked { opacity: 0.35; filter: grayscale(0.5); }
.vqa-badge-earned { background: linear-gradient(180deg, #fffbeb 0%, #fff 100%); border-color: #fde68a; }

.vqa-badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
    margin-bottom: 22px;
}
.vqa-badge-card {
    text-align: center; padding: 18px 14px;
    border: 1px solid var(--vqa-gray-200);
    border-radius: var(--vqa-radius);
    background: #fff;
}
.vqa-badge-card-emoji { font-size: 40px; }
.vqa-badge-card-label { font-weight: 700; margin-top: 8px; }
.vqa-badge-card-desc  { font-size: 12px; color: var(--vqa-gray-500); margin-top: 4px; min-height: 32px; }
.vqa-badge-card-date  { font-size: 11px; color: var(--vqa-gray-500); margin-top: 6px; }
.vqa-badge-card.vqa-badge-locked { opacity: 0.4; filter: grayscale(0.6); }
.vqa-badge-card.vqa-badge-earned { background: linear-gradient(180deg, #fffbeb 0%, #fff 100%); border-color: #fde68a; }
.vqa-badge-count {
    font-size: 13px; color: var(--vqa-gray-500); font-weight: normal;
    background: var(--vqa-gray-100); padding: 4px 10px; border-radius: 999px;
}

/* --- Weakness page --------------------------------------------- */
.vqa-filter-form {
    background: #fff; border: 1px solid var(--vqa-gray-200);
    border-radius: var(--vqa-radius); padding: 12px 16px;
    margin-bottom: 16px;
    display: flex; gap: 12px; align-items: center;
}
.vqa-filter-form label { font-size: 13px; color: var(--vqa-gray-500); }
.vqa-filter-form select {
    padding: 6px 10px; font-size: 14px;
    border: 1px solid var(--vqa-gray-300); border-radius: 6px;
}

.vqa-overall-card h3 { margin: 0 0 12px; font-size: 18px; }
.vqa-card-sub { font-size: 13px; color: var(--vqa-gray-500); font-weight: normal; margin-left: 6px; }

.vqa-stat-row { display: flex; gap: 14px; flex-wrap: wrap; }
.vqa-stat-block {
    flex: 1; min-width: 130px;
    background: var(--vqa-gray-100);
    border-radius: 8px; padding: 10px 14px;
}
.vqa-stat-label { font-size: 12px; color: var(--vqa-gray-500); }
.vqa-stat-value { font-size: 20px; font-weight: 700; color: var(--vqa-gray-900); margin-top: 2px; }

.vqa-weak-top h3 { margin-top: 0; color: var(--vqa-red); }
.vqa-weak-list { padding-left: 22px; margin: 0; }
.vqa-weak-list li { padding: 6px 0; display: flex; gap: 10px; flex-wrap: wrap; align-items: baseline; }
.vqa-weak-name { font-weight: 600; }
.vqa-weak-rate { font-weight: 700; font-variant-numeric: tabular-nums; }
.vqa-weak-detail { color: var(--vqa-gray-500); font-size: 12px; }

.vqa-rate-low  { color: var(--vqa-red); }
.vqa-rate-mid  { color: var(--vqa-yellow); }
.vqa-rate-high { color: var(--vqa-green); }
.vqa-rate-none { color: var(--vqa-gray-500); }
.vqa-muted     { color: var(--vqa-gray-500); font-size: 12px; }

.vqa-domain-table, .vqa-history-table {
    width: 100%; border-collapse: collapse;
}
.vqa-domain-table th, .vqa-domain-table td,
.vqa-history-table th, .vqa-history-table td {
    padding: 10px 8px; border-bottom: 1px solid var(--vqa-gray-200);
    text-align: left; font-size: 14px;
}
.vqa-domain-table th, .vqa-history-table th {
    color: var(--vqa-gray-500); font-weight: 600; font-size: 12px;
    background: var(--vqa-gray-100);
}
.vqa-domain-table td { vertical-align: middle; }
.vqa-col-wide { width: 30%; min-width: 140px; }
.vqa-hbar-track {
    width: 100%; height: 10px;
    background: var(--vqa-gray-100); border-radius: 999px; overflow: hidden;
}
.vqa-hbar-fill { height: 100%; border-radius: 999px; transition: width 0.4s ease; }
.vqa-hbar-high { background: var(--vqa-green); }
.vqa-hbar-mid  { background: var(--vqa-yellow); }
.vqa-hbar-low  { background: var(--vqa-red); }
.vqa-hbar-none { background: var(--vqa-gray-300); }

.vqa-pass { color: var(--vqa-green); font-weight: 600; }
.vqa-fail { color: var(--vqa-red); font-weight: 600; }

#vqa-progress-chart { width: 100% !important; max-height: 280px; }

/* --- Responsive ------------------------------------------------ */
@media (max-width: 600px) {
    .vqa-summary-value { font-size: 20px; }
    .vqa-stat-block    { min-width: 45%; }
    .vqa-exam-grid     { grid-template-columns: 1fr; }
    .vqa-badges-grid   { grid-template-columns: repeat(2, 1fr); }
    .vqa-domain-table .vqa-col-wide { display: none; }
    .vqa-hero { flex-direction: column; align-items: stretch; gap: 14px; }
    .vqa-cta-btn { justify-content: center; width: 100%; padding: 14px 20px; }
    .vqa-section-title { flex-direction: column; align-items: flex-start; gap: 4px; }
}