/* ================================================================
   TAF DASHBOARD — PREMIUM UI LAYER v5
   Loaded LAST so it layers on top of style.css + enhancements.css.
   Adds: animated aurora bg, gradient hairline borders, premium KPI
   cards w/ sparkline + count-up, sheen buttons, mission-control live
   header, refined tables, reveal animations, premium scrollbars.
   No breaking changes — only overrides/enhancements.
   ================================================================ */

/* ── 0. Premium tokens (additive) ──────────────────────────────── */
:root {
    --aurora-1: rgba(14, 165, 233, 0.18);
    --aurora-2: rgba(99, 102, 241, 0.16);
    --aurora-3: rgba(16, 185, 129, 0.10);
    --hairline: linear-gradient(135deg, rgba(255,255,255,0.18), rgba(255,255,255,0.02) 40%, rgba(255,255,255,0.12));
    --hairline-accent: linear-gradient(135deg, rgba(56,189,248,0.55), rgba(129,140,248,0.15) 50%, rgba(56,189,248,0.45));
    --sheen: linear-gradient(110deg, transparent 20%, rgba(255,255,255,0.18) 50%, transparent 80%);
    --ring-focus: 0 0 0 3px rgba(14,165,233,0.25);
}
[data-theme="light"] {
    --aurora-1: rgba(14, 165, 233, 0.10);
    --aurora-2: rgba(99, 102, 241, 0.09);
    --aurora-3: rgba(16, 185, 129, 0.06);
    --hairline: linear-gradient(135deg, rgba(15,23,42,0.10), rgba(15,23,42,0.02) 40%, rgba(15,23,42,0.08));
    --hairline-accent: linear-gradient(135deg, rgba(14,165,233,0.45), rgba(99,102,248,0.12) 50%, rgba(14,165,233,0.35));
}

/* ── 1. Animated aurora background ─────────────────────────────── */
body {
    position: relative;
    background-color: var(--bg-dark);
    background-image:
        radial-gradient(1200px 600px at 80% -10%, var(--aurora-1), transparent 60%),
        radial-gradient(1000px 500px at 0% 100%, var(--aurora-2), transparent 55%),
        radial-gradient(800px 400px at 50% 50%, var(--aurora-3), transparent 70%);
    background-attachment: fixed;
}
body::before {
    content: "";
    position: fixed;
    inset: -20%;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(40vw 40vw at 25% 30%, var(--aurora-1), transparent 60%),
        radial-gradient(35vw 35vw at 75% 70%, var(--aurora-2), transparent 60%),
        radial-gradient(30vw 30vw at 60% 20%, var(--aurora-3), transparent 60%);
    filter: blur(8px);
    opacity: 0.7;
    animation: auroraDrift 26s ease-in-out infinite alternate;
}
@keyframes auroraDrift {
    0%   { transform: translate3d(-2%, -1%, 0) scale(1) rotate(0deg); }
    50%  { transform: translate3d(2%, 2%, 0) scale(1.08) rotate(6deg); }
    100% { transform: translate3d(-1%, 1%, 0) scale(1.02) rotate(-4deg); }
}
[data-theme="light"] body::before { opacity: 0.5; }

/* ── 2. Gov header — animated sheen line under title ───────────── */
.gov-header { position: relative; }
.gov-header::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -2px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), var(--accent), transparent);
    background-size: 200% 100%;
    animation: sheenSlide 6s linear infinite;
    opacity: 0.9;
}
@keyframes sheenSlide {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.gov-header .title h3.system-title {
    background: linear-gradient(90deg, #fbbf24, #f59e0b, #fbbf24);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: amberShimmer 5s linear infinite;
}
@keyframes amberShimmer {
    0%   { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}
[data-theme="light"] .gov-header .title h3.system-title {
    background: linear-gradient(90deg, #b45309, #d97706, #b45309);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ── 3. Glass cards — gradient hairline border via mask ────────── */
.chart-card,
.live-taf-card,
.live-verif-section,
.live-all-tafs-panel,
.raw-box-card,
.kpi-card,
.live-kpi-tile,
.scored-metar-card {
    position: relative;
    border: 1px solid transparent;
    background-clip: padding-box;
}
.chart-card::before,
.live-taf-card::before,
.live-verif-section::before,
.live-all-tafs-panel::before,
.raw-box-card::before,
.kpi-card::before,
.live-kpi-tile::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--hairline);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    z-index: 1;
}
/* accent top-bar on primary cards */
.kpi-card::after,
.live-taf-card::after {
    content: "";
    position: absolute;
    top: 0; left: 14%; right: 14%;
    height: 2px;
    border-radius: 0 0 2px 2px;
    background: var(--hairline-accent);
    opacity: 0.85;
    z-index: 2;
    transition: left 0.4s var(--ease-out), right 0.4s var(--ease-out);
}
.kpi-card:hover::after,
.live-taf-card:hover::after { left: 0; right: 0; opacity: 1; }

/* ── 4. Premium KPI card ───────────────────────────────────────── */
.kpi-card {
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-md) !important;
    overflow: hidden;
    transition: transform var(--dur-normal) var(--ease-out),
                box-shadow var(--dur-normal) var(--ease-out),
                border-color var(--dur-normal) var(--ease-out) !important;
}
.kpi-card:hover {
    transform: translateY(-6px) !important;
    box-shadow: var(--shadow-xl), 0 0 24px var(--glow-blue) !important;
}
.kpi-card .value {
    font-family: var(--font-display);
    font-size: 2.4rem;
    line-height: 1.05;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.5px;
}
.kpi-card .value[data-countup] { display: inline-block; }
.kpi-card .kpi-spark {
    position: absolute;
    right: 0.85rem; bottom: 0.75rem;
    width: 84px; height: 30px;
    opacity: 0.85;
    z-index: 2;
}
.kpi-card .kpi-foot {
    margin-top: 0.6rem;
    font-size: 0.72rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
}

/* Live KPI tiles — accent corner glow */
.live-kpi-tile {
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-sm) !important;
    overflow: hidden;
    transition: transform var(--dur-normal) var(--ease-out),
                box-shadow var(--dur-normal) var(--ease-out) !important;
}
.live-kpi-tile:hover {
    transform: translateY(-3px) !important;
    box-shadow: var(--shadow-md), 0 0 18px var(--glow-blue) !important;
}
.live-kpi-tile-icon {
    transition: transform var(--dur-slow) var(--ease-out);
}
.live-kpi-tile:hover .live-kpi-tile-icon { transform: scale(1.18) rotate(-6deg); }
.live-kpi-tile-value { font-variant-numeric: tabular-nums; }

/* ── 5. Section header / breadcrumb ───────────────────────────── */
.app-header {
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.6rem;
}
.app-header h1 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    background: linear-gradient(90deg, var(--text-main), var(--text-muted));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.crumb {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--text-muted);
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: var(--surface-1);
    border: 1px solid var(--border-color);
    margin-top: 8px;
}
.crumb i { color: var(--accent); }
.crumb .crumb-sep { opacity: 0.4; }

/* ── 6. Buttons — sheen sweep ──────────────────────────────────── */
.btn-verify,
.btn-run-verif,
.btn-download,
.btn-small {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}
.btn-verify::after,
.btn-run-verif::after,
.btn-download::after,
.btn-small::after {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--sheen);
    transform: translateX(-130%);
    transition: transform 0.6s var(--ease-out);
    z-index: -1;
}
.btn-verify:hover::after,
.btn-run-verif:hover::after,
.btn-download:hover::after,
.btn-small:hover::after { transform: translateX(130%); }

/* ── 7. Mission-control live header bar ────────────────────────── */
.live-header-bar {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-md) !important;
}
.live-header-bar::before {
    content: "";
    position: absolute;
    top: 0; left: -40%;
    width: 40%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(52,211,153,0.14), transparent);
    animation: scanSweep 4.5s ease-in-out infinite;
    pointer-events: none;
}
@keyframes scanSweep {
    0%   { left: -40%; }
    55%  { left: 100%; }
    100% { left: 100%; }
}
.live-pulse-dot {
    box-shadow: 0 0 0 0 rgba(52,211,153,0.6);
    animation: pulseRing 1.6s ease-out infinite !important;
}
@keyframes pulseRing {
    0%   { box-shadow: 0 0 0 0 rgba(52,211,153,0.55), 0 0 8px var(--success); transform: scale(1); }
    70%  { box-shadow: 0 0 0 12px rgba(52,211,153,0), 0 0 10px var(--success); transform: scale(1.2); }
    100% { box-shadow: 0 0 0 0 rgba(52,211,153,0), 0 0 8px var(--success); transform: scale(1); }
}
.live-clock { font-variant-numeric: tabular-nums; }

/* Live TAF cards — subtle gradient header + accent left edge */
.live-taf-card {
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm) !important;
    transition: transform var(--dur-normal) var(--ease-out),
                box-shadow var(--dur-normal) var(--ease-out) !important;
}
.live-taf-card:hover {
    transform: translateY(-4px) !important;
    box-shadow: var(--shadow-lg), 0 0 28px var(--glow-blue) !important;
}
.live-taf-card-header {
    position: relative;
}
.live-taf-card-header::before {
    content: "";
    position: absolute;
    left: 0; top: 14%; bottom: 14%;
    width: 3px;
    border-radius: 0 3px 3px 0;
}
#liLongCard .live-taf-card-header::before { background: linear-gradient(var(--accent), transparent); }
#liShortCard .live-taf-card-header::before { background: linear-gradient(#818cf8, transparent); }

/* ── 8. Refined data tables ───────────────────────────────────── */
.data-table {
    border-collapse: separate;
    border-spacing: 0;
    font-variant-numeric: tabular-nums;
}
.data-table thead th {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-bottom: 2px solid var(--hairline-accent) !important;
}
.data-table tbody tr {
    position: relative;
    transition: background var(--dur-fast), transform var(--dur-fast);
}
.data-table tbody tr:hover {
    background: rgba(14,165,233,0.07) !important;
}
.data-table tbody tr td:first-child {
    position: relative;
}
.data-table tbody tr:hover td:first-child::before {
    content: "";
    position: absolute;
    left: 0; top: 10%; bottom: 10%;
    width: 3px;
    border-radius: 3px;
    background: var(--accent);
}
.data-table td .lvs-acc,
.scored-overall { font-variant-numeric: tabular-nums; }

/* ── 9. Status indicator — refined ────────────────────────────── */
.status-indicator {
    border-radius: var(--radius-pill) !important;
    box-shadow: var(--shadow-sm) !important;
}
.status-indicator .dot {
    position: relative;
}
.status-indicator.connected .dot::after {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid var(--success);
    opacity: 0;
    animation: statusPing 1.8s ease-out infinite;
}
@keyframes statusPing {
    0%   { transform: scale(0.8); opacity: 0.7; }
    100% { transform: scale(1.8); opacity: 0; }
}

/* ── 10. Sidebar polish ────────────────────────────────────────── */
.sidebar { position: relative; }
.sidebar::after {
    content: "";
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: 1px;
    background: var(--hairline);
    opacity: 0.6;
}
.logo-mark {
    transition: transform var(--dur-slow) var(--ease-out);
}
.logo:hover .logo-mark { transform: rotate(8deg) scale(1.08); }
nav ul li {
    border-radius: var(--radius-md) !important;
    position: relative;
}
nav ul li.active {
    background: linear-gradient(90deg, rgba(14,165,233,0.16), rgba(99,102,241,0.04)) !important;
    box-shadow: inset 0 0 0 1px rgba(14,165,233,0.25);
}
nav ul li.active::before {
    content: "";
    position: absolute;
    left: 0; top: 18%; bottom: 18%;
    width: 3px;
    border-radius: 3px;
    background: linear-gradient(var(--accent), var(--accent-2));
    box-shadow: 0 0 8px var(--glow-blue);
}
nav ul li.active { border-left: none !important; }
.selector-dropdown, input[type=month], input[type=number] {
    border-radius: var(--radius-sm) !important;
    transition: border-color var(--dur-normal), box-shadow var(--dur-normal) !important;
}
.selector-dropdown:focus,
input:focus { box-shadow: var(--ring-focus) !important; }

/* ── 11. Modal polish ──────────────────────────────────────────── */
.modal-content {
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-xl), 0 0 60px rgba(14,165,233,0.10) !important;
    animation: modalRise var(--dur-slow) var(--ease-out) !important;
}
@keyframes modalRise {
    from { opacity: 0; transform: translateY(24px) scale(0.97); }
    to   { opacity: 1; transform: none; }
}
.modal-kpi {
    border-radius: var(--radius-md) !important;
    transition: transform var(--dur-fast);
}
.modal-kpi:hover { transform: translateY(-2px); }

/* ── 12. Reveal-on-scroll animations ──────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
    will-change: opacity, transform;
}
.reveal.is-visible {
    opacity: 1;
    transform: none;
}
.view.active .kpi-card,
.view.active .chart-card {
    animation: staggerUp var(--dur-slow) var(--ease-out) both;
}
.view.active .kpi-card:nth-child(1) { animation-delay: 0.04s; }
.view.active .kpi-card:nth-child(2) { animation-delay: 0.10s; }
.view.active .kpi-card:nth-child(3) { animation-delay: 0.16s; }
.view.active .kpi-card:nth-child(4) { animation-delay: 0.22s; }
.view.active .chart-card:nth-child(1) { animation-delay: 0.10s; }
@keyframes staggerUp {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: none; }
}

/* ── 13. Premium scrollbars ────────────────────────────────────── */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(14,165,233,0.4) transparent;
}
::-webkit-scrollbar       { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb  {
    background: linear-gradient(var(--accent), var(--accent-2));
    border-radius: 99px;
    border: 2px solid transparent;
    background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(var(--accent), var(--accent-2));
    background-clip: padding-box;
}

/* ── 14. Footer polish ──────────────────────────────────────────── */
.app-footer {
    backdrop-filter: blur(12px);
    border-top: 1px solid transparent !important;
    background: var(--hairline), rgba(0,0,0,0.12) !important;
    background-clip: padding-box;
}
[data-theme="light"] .app-footer {
    background: var(--hairline), rgba(0,0,0,0.04) !important;
}

/* ── 15. Chart wrapper top-gradient accent ─────────────────────── */
.chart-card {
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm) !important;
    overflow: hidden;
}
.chart-card h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
}
.chart-card h3::before {
    content: "";
    width: 4px; height: 16px;
    border-radius: 2px;
    background: linear-gradient(var(--accent), var(--accent-2));
    box-shadow: 0 0 8px var(--glow-blue);
    flex-shrink: 0;
}

/* ── 16. Tooltip upgrade ──────────────────────────────────────── */
[data-tooltip]::after {
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    max-width: 240px;
    white-space: normal;
    line-height: 1.4;
    font-weight: 600;
}

/* ── 17. Mobile tweaks (keep premium feel) ─────────────────────── */
@media (max-width: 768px) {
    .kpi-card .value { font-size: 1.9rem; }
    .kpi-card .kpi-spark { width: 60px; height: 24px; }
    body::before { animation: none; opacity: 0.3; }

    /* CRITICAL: Kill the 100vh flex-stretch layout on mobile */
    body {
        height: auto !important;
        min-height: 0 !important;
        overflow-y: auto !important;
    }

    /* Dashboard wrapper must NOT stretch to fill viewport */
    .dashboard-wrapper {
        display: block !important;
        flex: none !important;
        width: 100% !important;
        height: auto !important;
        min-height: 0 !important;
        overflow: visible !important;
    }

    /* Content area — natural flow, no internal scroll container */
    .content {
        display: block !important;
        flex-grow: 0 !important;
        flex: none !important;
        height: auto !important;
        min-height: 0 !important;
        overflow: visible !important;
        padding: 12px !important;
        margin: 0 !important;
        scrollbar-gutter: auto !important;
        box-sizing: border-box !important;
    }

    /* App header — no excess margin creating gap */
    .app-header {
        margin: 0 0 0.75rem 0 !important;
        padding-bottom: 0.5rem !important;
    }

    /* Gov header — prevent any bottom margin/gap */
    .gov-header {
        margin: 0 !important;
        flex-shrink: 0 !important;
    }

    /* CRITICAL: Override the global .sidebar { position: relative } from section 10 above */
    .sidebar {
        position: fixed !important;
        top: 0 !important;
        left: -300px !important;
    }
    .sidebar.open {
        left: 0 !important;
    }
}
@media (prefers-reduced-motion: reduce) {
    body::before, .gov-header::after, .live-header-bar::before,
    .live-pulse-dot, .status-indicator .dot::after,
    .gov-header .title h3.system-title { animation: none !important; }
    .reveal { transition: none; }
}

/* ================================================================
   POLISH SPRINT — Phase 1 + 5 + 2 (additive)
   ================================================================ */

/* ── P1.1 Collapsible sidebar ─────────────────────────────────── */
.sidebar-collapse-btn {
    position: absolute;
    top: 1.4rem;
    right: -12px;
    width: 24px; height: 24px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--surface-2);
    color: var(--text-muted);
    cursor: pointer;
    z-index: 20;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-normal) var(--ease-out),
                background var(--dur-fast), color var(--dur-fast);
}
.sidebar-collapse-btn i {
    font-size: 0.7rem;
    transition: transform var(--dur-normal) var(--ease-out);
}
.sidebar-collapse-btn:hover {
    background: var(--accent);
    color: #0f172a;
    border-color: var(--accent);
}
.sidebar-collapse-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.sidebar.collapsed { width: 76px !important; padding: 2rem 0.5rem 1.5rem !important; }
.sidebar.collapsed .sidebar-collapse-btn i { transform: rotate(180deg); }
.sidebar.collapsed .logo { justify-content: center; }
.sidebar.collapsed .logo h2,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed nav ul li span:not(.nav-icon),
.sidebar.collapsed .selector-label,
.sidebar.collapsed .selector-dropdown,
.sidebar.collapsed .verify-controls,
.sidebar.collapsed .sidebar-footer { display: none !important; }
.sidebar.collapsed nav ul li { justify-content: center; padding: 0.85rem 0.5rem !important; }
.sidebar.collapsed nav ul li .nav-icon { margin: 0 auto; }
.sidebar.collapsed .taf-type-selector { padding: 0.5rem; background: transparent; border: none; }
.sidebar.collapsed .logo-mark { margin: 0 auto; }
/* tooltip-on-collapse: show label on hover of icon-only nav */
.sidebar.collapsed nav ul li:hover::after {
    content: attr(data-label);
    position: absolute;
    left: 100%; top: 50%; transform: translateY(-50%);
    margin-left: 10px;
    white-space: nowrap;
    background: #0f172a;
    color: #f8fafc;
    font-size: 0.75rem; font-weight: 600;
    padding: 5px 10px; border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 50; pointer-events: none;
}
[data-theme="light"] .sidebar.collapsed nav ul li:hover::after { background:#1e293b; }
@media (max-width: 1024px) {
    .sidebar { transition: width var(--dur-normal) var(--ease-out); }
}
@media (max-width: 768px) {
    /* mobile drawer is never icon-only; keep full */
    .sidebar.collapsed { width: 260px !important; padding: 4rem 1.25rem 1.5rem !important; }
    .sidebar.collapsed .logo h2,
    .sidebar.collapsed .nav-section-label,
    .sidebar.collapsed nav ul li span:not(.nav-icon),
    .sidebar.collapsed .selector-label,
    .sidebar.collapsed .selector-dropdown,
    .sidebar.collapsed .verify-controls,
    .sidebar.collapsed .sidebar-footer { display: revert !important; }
    .sidebar-collapse-btn { display: none; }
}

/* ── P1.2 Batch verification section — intentional, not disabled ── */
.batch-verif-section { opacity: 1 !important; }
.batch-verif-section .lvs-grid { margin: 1rem 1.3rem 1.3rem; }

/* ── P1.3 KPI consistency (unify kpi-card w/ live-kpi-tile aesthetic) ── */
.kpi-card h4 {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.74rem !important;
    letter-spacing: 0.6px;
}
.kpi-card h4::before {
    content: "";
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 6px var(--glow-blue);
    flex-shrink: 0;
}
.kpi-card .value {
    display: flex; align-items: baseline; gap: 4px;
}
.kpi-card .kpi-foot { position: relative; z-index: 3; }
.live-kpi-tile { position: relative; }
.live-kpi-tile::after {
    content: "";
    position: absolute;
    top: 0; right: 0;
    width: 50px; height: 50px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--glow-blue), transparent 70%);
    transform: translate(18px,-18px);
    pointer-events: none;
    z-index: 0;
}

/* ── P1.4 Live tile icon container (FA now, not emoji) ─────────── */
.live-kpi-tile-icon {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-md);
    background: var(--surface-1);
    border: 1px solid var(--border-color);
    color: var(--accent);
    flex-shrink: 0;
    z-index: 2;
}
.live-kpi-tile-body { z-index: 2; position: relative; }

/* ── P1.5 Spacing utility scale (replace ad-hoc inline styles) ─── */
.ce-explorer-title { margin-bottom: 1rem; }
.mt-1 { margin-top: 0.5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; }
.gap-1 { gap: 0.5rem; } .gap-2 { gap: 1rem; } .gap-3 { gap: 1.5rem; }

/* ── P1.6 Skeleton loaders for KPI/empty states ────────────────── */
.kpi-skeleton {
    height: 110px;
    border-radius: var(--radius-lg);
}
.kpi-cards.is-loading .kpi-card { display: none; }

/* ── P2.1 Sortable table headers ───────────────────────────────── */
.data-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: color var(--dur-fast);
}
.data-table th.sortable:hover { color: var(--accent); }
.data-table th.sortable .sort-ind {
    margin-left: 5px; opacity: 0.4; font-size: 0.7em; font-weight: 700;
}
.data-table th.sortable.sort-asc .sort-ind { opacity: 1; color: var(--accent); }
.data-table th.sortable.sort-desc .sort-ind { opacity: 1; color: var(--accent-2); }
.data-table tbody tr[data-empty="true"] { cursor: default; }

/* ── P2.6 Designed empty-state rows ────────────────────────────── */
.empty-state {
    text-align: center !important;
    padding: 2.5rem 1rem !important;
}
.empty-state .es-icon {
    font-size: 2rem; color: var(--text-muted); opacity: 0.5;
    display: block; margin-bottom: 0.6rem;
}
.empty-state .es-title {
    font-size: 0.95rem; font-weight: 700; color: var(--text-main);
    margin-bottom: 0.3rem;
}
.empty-state .es-sub {
    font-size: 0.82rem; color: var(--text-muted);
}
.empty-state .es-hint {
    margin-top: 0.8rem; font-size: 0.72rem; color: var(--accent);
    font-weight: 600;
}

/* ── P5 Accessibility ───────────────────────────────────────────── */
/* 5.4 — improve muted-text contrast for WCAG AA on both themes */
:root { --text-muted: #9fb0c8; }
[data-theme="light"] { --text-muted: #5b6577; }
/* 5.5 — focus-visible across all interactive controls */
a:focus-visible,
nav ul li:focus-visible,
.kpi-card:focus-visible,
.live-kpi-tile:focus-visible,
.btn-ltc-all:focus-visible,
.atp-item:focus-visible,
.atp-close:focus-visible,
.btn-copy:focus-visible,
.close-modal:focus-visible,
.auth-close:focus-visible,
.sidebar-collapse-btn:focus-visible,
.selector-dropdown:focus-visible,
.data-table th.sortable:focus-visible,
.chart-type-btn:focus-visible,
.quick-pick-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}
/* nav items are keyboard-operable (role=button added in JS) */
nav ul li { outline-offset: -2px; }
/* 5.1 — badges keep icon + text (already have text); ensure aria */
.badge-hit, .badge-miss, .badge-na, .badge-wait { white-space: nowrap; }
/* skip link */
.skip-link {
    position: fixed;
    top: -100px; left: 1rem;
    z-index: 99999;
    background: var(--accent);
    color: #0f172a;
    font-weight: 700; font-size: 0.85rem;
    padding: 0.5rem 0.9rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: top var(--dur-normal) var(--ease-out);
}
.skip-link:focus { top: 1rem; }