/* ============================================================
   NHLC Price Busters — Premium Theme
   ============================================================ */

:root {
    --brand-primary: #c8102e;
    --brand-dark: #1a1a2e;
    --brand-darker: #13132a;
    --surface: #ffffff;
    --surface-alt: #f8f9fc;
    --surface-hover: #f0f1f5;
    --border: #e2e5ed;
    --border-light: #eef0f5;
    --text-primary: #1a1a2e;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);
    --shadow-lg: 0 10px 30px rgba(0,0,0,.1), 0 4px 8px rgba(0,0,0,.06);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 6px;
    --transition: 0.2s cubic-bezier(.4,0,.2,1);
}

/* ---- Global ---- */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--surface-alt);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ---- Navbar ---- */
.navbar-premium {
    background: var(--brand-dark);
    border-bottom: 1px solid rgba(255,255,255,.06);
    padding: .65rem 1.25rem;
    backdrop-filter: blur(12px);
}
.navbar-premium .navbar-brand {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -.02em;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: .6rem;
}
.navbar-premium .navbar-brand img {
    height: 30px;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,.3));
}
.navbar-premium .nav-link {
    color: rgba(255,255,255,.7) !important;
    font-weight: 500;
    font-size: .875rem;
    padding: .4rem .9rem !important;
    border-radius: var(--radius-xs);
    transition: var(--transition);
}
.navbar-premium .nav-link:hover,
.navbar-premium .nav-link.active {
    color: #fff !important;
    background: rgba(255,255,255,.1);
}

/* ---- Cards ---- */
.card-premium {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition);
    overflow: hidden;
}
.card-premium:hover {
    box-shadow: var(--shadow-md);
}
.card-premium .card-header-premium {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    background: var(--surface);
    font-weight: 600;
    font-size: .95rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.card-premium .card-header-premium .header-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
    flex-shrink: 0;
}
.card-premium .card-header-premium .header-icon.icon-primary {
    background: rgba(200,16,46,.08);
    color: var(--brand-primary);
}
.card-premium .card-header-premium .header-icon.icon-success {
    background: rgba(16,185,129,.08);
    color: #10b981;
}
.card-premium .card-header-premium .header-icon.icon-danger {
    background: rgba(239,68,68,.08);
    color: #ef4444;
}
.card-premium .card-header-premium .header-icon.icon-warning {
    background: rgba(245,158,11,.08);
    color: #f59e0b;
}
.card-premium .card-header-premium .header-icon.icon-info {
    background: rgba(59,130,246,.08);
    color: #3b82f6;
}
.card-premium .card-body-premium {
    padding: 1.25rem;
}

/* ---- Form Controls ---- */
.form-control, .form-select {
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    padding: .55rem .85rem;
    font-size: .9rem;
    transition: var(--transition);
    background: var(--surface);
}
.form-control:focus, .form-select:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(200,16,46,.1);
}
.form-label {
    font-weight: 600;
    font-size: .85rem;
    color: var(--text-primary);
    margin-bottom: .35rem;
}
.form-text {
    font-size: .8rem;
    color: var(--text-muted);
}

/* ---- Radio as Segmented Control ---- */
.radio-group {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
}
.radio-card {
    position: relative;
    flex: 1;
    min-width: 120px;
}
.radio-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.radio-card .radio-label {
    display: block;
    padding: .6rem .75rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    background: var(--surface);
    color: var(--text-secondary);
}
.radio-card .radio-label:hover {
    border-color: #ccc;
    background: var(--surface-hover);
}
.radio-card input[type="radio"]:checked + .radio-label {
    border-color: var(--brand-primary);
    background: rgba(200,16,46,.04);
    color: var(--brand-primary);
    font-weight: 600;
}

/* ---- Buttons ---- */
.btn-brand {
    background: var(--brand-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: .65rem 1.5rem;
    font-weight: 600;
    font-size: .9rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: .45rem;
}
.btn-brand:hover {
    background: #a80d25;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(200,16,46,.25);
}
.btn-brand:active {
    transform: translateY(0);
}
.btn-brand:disabled {
    opacity: .5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .45rem 1rem;
    font-weight: 500;
    font-size: .85rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}
.btn-ghost:hover {
    background: var(--surface-hover);
    border-color: #ccc;
    color: var(--text-primary);
}

.btn-success-premium {
    background: #10b981;
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: .45rem 1rem;
    font-weight: 600;
    font-size: .85rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}
.btn-success-premium:hover {
    background: #059669;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16,185,129,.25);
}

.btn-warning-premium {
    background: #f59e0b;
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: .45rem 1rem;
    font-weight: 600;
    font-size: .85rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}
.btn-warning-premium:hover {
    background: #d97706;
    color: #fff;
    transform: translateY(-1px);
}

/* ---- File Upload ---- */
.file-upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--surface-alt);
    position: relative;
}
.file-upload-zone:hover {
    border-color: var(--brand-primary);
    background: rgba(200,16,46,.02);
}
.file-upload-zone.has-file {
    border-color: #10b981;
    background: rgba(16,185,129,.03);
}
.file-upload-zone.drag-over {
    border-color: var(--brand-primary);
    background: rgba(200,16,46,.06);
    transform: scale(1.01);
}
.file-upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}
.file-upload-icon {
    font-size: 2rem;
    color: var(--text-muted);
    margin-bottom: .5rem;
}
.file-upload-zone.has-file .file-upload-icon {
    color: #10b981;
}
.file-upload-text {
    font-size: .9rem;
    color: var(--text-secondary);
}
.file-upload-text strong {
    color: var(--brand-primary);
}
.file-name-display {
    font-size: .85rem;
    font-weight: 600;
    color: #10b981;
    margin-top: .5rem;
}

/* ---- Date Range ---- */
.date-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: .75rem;
    align-items: end;
}
.date-separator {
    padding-bottom: .65rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ---- Badge / Pill ---- */
.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .3rem .7rem;
    border-radius: 20px;
    font-size: .78rem;
    font-weight: 500;
}
.badge-pill.badge-info {
    background: rgba(59,130,246,.08);
    color: #3b82f6;
}
.badge-pill.badge-date {
    background: rgba(107,114,128,.08);
    color: var(--text-secondary);
}

/* ---- Recent PDFs list ---- */
.recent-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--border-light);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    font-size: .875rem;
}
.recent-item:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}
.recent-item:last-child {
    border-bottom: none;
}
.recent-item .pdf-icon {
    color: var(--brand-primary);
    margin-right: .5rem;
}
.recent-item .recent-date {
    font-size: .78rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ---- Templates ---- */
.template-btn {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .45rem .85rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .82rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    background: var(--surface);
}
.template-btn:hover {
    border-color: #10b981;
    color: #10b981;
    background: rgba(16,185,129,.03);
}

/* ---- Alert Premium ---- */
.alert-premium {
    border: none;
    border-radius: var(--radius-sm);
    padding: .75rem 1rem;
    font-size: .875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.alert-premium.alert-success {
    background: rgba(16,185,129,.08);
    color: #047857;
}
.alert-premium.alert-danger {
    background: rgba(239,68,68,.08);
    color: #b91c1c;
}
.alert-premium.alert-warning {
    background: rgba(245,158,11,.08);
    color: #92400e;
}
.alert-premium .btn-close {
    font-size: .7rem;
}

/* ---- PDF Preview ---- */
.pdf-preview-frame {
    width: 100%;
    height: 80vh;
    border: none;
    border-radius: 0 0 var(--radius) var(--radius);
}

/* ---- Preview header bar ---- */
.preview-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: .75rem;
    padding: 1rem 0;
}
.preview-filename {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-weight: 600;
    font-size: 1rem;
    min-width: 0;
}
.preview-filename i {
    color: var(--brand-primary);
    font-size: 1.2rem;
}
.preview-actions {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
}

/* ---- Proof Checker ---- */
.proof-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.proof-header h5 {
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}

.summary-banner {
    border-radius: var(--radius-sm);
    padding: .85rem 1.15rem;
    font-size: .875rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: .5rem;
}
.summary-banner.summary-success {
    background: rgba(16,185,129,.06);
    border: 1px solid rgba(16,185,129,.15);
}
.summary-banner.summary-warning {
    background: rgba(245,158,11,.06);
    border: 1px solid rgba(245,158,11,.15);
}
.summary-banner.summary-error {
    background: rgba(239,68,68,.06);
    border: 1px solid rgba(239,68,68,.15);
}
.summary-stats {
    display: flex;
    gap: 1.25rem;
    font-size: .8rem;
    color: var(--text-secondary);
}
.summary-stats strong {
    color: var(--text-primary);
}

/* ---- Proof checker panels ---- */
.panel-header {
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.panel-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.panel-label {
    font-weight: 600;
    font-size: .875rem;
    display: flex;
    align-items: center;
    gap: .4rem;
}
.panel-label.label-excel { color: #10b981; }
.panel-label.label-pdf { color: var(--brand-primary); }

/* ---- Diff highlight ---- */
.pc-diff-cell {
    background-color: rgba(245,158,11,.08) !important;
    border-left: 3px solid #f59e0b !important;
    font-weight: 600;
}

/* ---- Compare page ---- */
.compare-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* ---- Tables ---- */
#compTable th {
    font-size: .78rem;
    white-space: nowrap;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .03em;
}
#compTable td {
    white-space: nowrap;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: .82rem;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* ---- Empty State ---- */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}
.empty-state i {
    font-size: 2.5rem;
    margin-bottom: .75rem;
    opacity: .4;
}
.empty-state p {
    font-size: .9rem;
    margin: 0;
}

/* ---- Section Labels ---- */
.section-label {
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: .6rem;
}

/* ---- Content area wrapper ---- */
.page-content {
    padding: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .page-content {
        padding: 1rem .75rem;
    }
    .date-row {
        grid-template-columns: 1fr;
    }
    .date-separator {
        display: none;
    }
    .radio-group {
        flex-direction: column;
    }
}

/* ---- AI Proof Check ---- */
.ai-finding {
    padding: .65rem 1rem;
    border-left: 3px solid #64748b;
    margin: 4px 8px;
    border-radius: 4px;
    transition: background .15s;
}
.ai-finding:hover { background: rgba(0,0,0,.03) !important; }
.ai-finding[data-severity="error"] { border-left-color: #ef4444; background: rgba(239,68,68,.04); }
.ai-finding[data-severity="warning"] { border-left-color: #f59e0b; background: rgba(245,158,11,.04); }
.ai-finding[data-severity="info"] { border-left-color: #3b82f6; background: rgba(59,130,246,.04); }
.ai-filter-btn.active { background: var(--brand-primary); color: #fff; border-radius: 4px; }

/* Count badges in filter buttons */
.ai-count-badge {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 16px; height: 16px; padding: 0 4px;
    border-radius: 8px; font-size: .6rem; font-weight: 600;
    background: rgba(0,0,0,.1); margin-left: 2px;
}
.ai-count-badge:empty { display: none; }
.ai-filter-btn.active .ai-count-badge { background: rgba(255,255,255,.3); }
.ai-count-error { color: #ef4444; }
.ai-count-warning { color: #f59e0b; }
.ai-count-info { color: #3b82f6; }
.ai-count-pending { color: #f59e0b; }
.ai-count-accepted { color: #10b981; }
.ai-count-ignored { color: #94a3b8; }
.ai-filter-btn.active .ai-count-error,
.ai-filter-btn.active .ai-count-warning,
.ai-filter-btn.active .ai-count-info,
.ai-filter-btn.active .ai-count-pending,
.ai-filter-btn.active .ai-count-accepted,
.ai-filter-btn.active .ai-count-ignored { color: #fff; }

/* Fix suggestion cards */
.ai-finding-accepted { border-left-color: #10b981 !important; background: rgba(16,185,129,.06) !important; }
.ai-finding-ignored { opacity: .5; border-left-color: #94a3b8 !important; background: rgba(0,0,0,.02) !important; }

.fix-suggestion {
    margin-top: .5rem;
    padding: .5rem .75rem;
    background: var(--surface-alt);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    flex-wrap: wrap;
}
.fix-suggestion.fix-accepted {
    background: rgba(16,185,129,.08);
    display: flex; align-items: center; gap: .5rem;
}
.fix-suggestion.fix-ignored {
    background: rgba(0,0,0,.03);
    display: flex; align-items: center; gap: .5rem;
}
.fix-values {
    display: flex; align-items: center; gap: .4rem; font-size: .82rem;
}
.fix-old {
    text-decoration: line-through; color: #ef4444; font-family: monospace;
}
.fix-new {
    color: #10b981; font-weight: 600; font-family: monospace;
}
.fix-actions {
    display: flex; gap: .35rem;
}
.btn-fix-accept {
    padding: .25rem .6rem; font-size: .75rem; border: 1px solid #10b981;
    color: #10b981; background: transparent; border-radius: 4px; cursor: pointer;
    transition: all .15s;
}
.btn-fix-accept:hover { background: #10b981; color: #fff; }
.btn-fix-ignore {
    padding: .25rem .6rem; font-size: .75rem; border: 1px solid #94a3b8;
    color: #64748b; background: transparent; border-radius: 4px; cursor: pointer;
    transition: all .15s;
}
.btn-fix-ignore:hover { background: #94a3b8; color: #fff; }
.btn-fix-undo {
    padding: .2rem .5rem; font-size: .7rem; border: 1px solid var(--border);
    color: var(--text-muted); background: transparent; border-radius: 4px; cursor: pointer;
    margin-left: auto;
}
.btn-fix-undo:hover { background: var(--surface-alt); }

/* Apply Fixes Bar */
.apply-fixes-bar {
    position: sticky;
    bottom: 0;
    background: var(--surface);
    border-top: 2px solid #10b981;
    padding: .75rem 1.5rem;
    display: flex;
    align-items: center;
    box-shadow: 0 -4px 12px rgba(0,0,0,.1);
    z-index: 100;
    border-radius: 0;
    margin-top: 1rem;
}