/* ════════════════════════════════════════════════════════════
 * app-system.css — Global Design System (ListFlow)
 * Command Terminal aesthetic, applicable to every page.
 * Uses `sig-*` prefix as the universal component namespace.
 * Consumes the existing :root tokens from partials/header.ejs
 * (--app-primary, --app-bg-card, --app-border, ...).
 * ════════════════════════════════════════════════════════════ */

:root {
    --sig-red: 241, 44, 76;
    --sig-red-hot: 255, 92, 122;
    --sig-amber: 245, 158, 11;
    --sig-green: 34, 197, 94;
    --sig-info: 13, 202, 240;
    --sig-ink: 15, 18, 21;

    --sig-radius-sm: 8px;
    --sig-radius-md: 12px;
    --sig-radius-lg: 16px;

    --sig-shadow-sm: 0 1px 2px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.04);
    --sig-shadow-md: 0 4px 12px rgba(0,0,0,0.35), 0 1px 2px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.05);
    --sig-shadow-lg: 0 20px 40px -12px rgba(0,0,0,0.6), 0 8px 20px -6px rgba(0,0,0,0.4);

    --sig-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --sig-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

/* ════════════════════════════════════════════════════════════
 * HERO  —  Title + Crumb + Ambient backdrop
 * Per-page color tone via `--sig-hero-tone` override.
 * ════════════════════════════════════════════════════════════ */
.sig-hero {
    margin: 0 0 1.75rem;
    padding: 0;
    position: relative;
    border-radius: 0;
    --sig-hero-tone: var(--sig-red);
}

.sig-hero.sig-hero--amber    { --sig-hero-tone: var(--sig-amber); }
.sig-hero.sig-hero--green    { --sig-hero-tone: var(--sig-green); }
.sig-hero.sig-hero--info     { --sig-hero-tone: var(--sig-info);  }

/* Collapse any Bootstrap mb-* override — hero spacing is controlled only by .sig-hero */
.sig-hero.mb-0,
.sig-hero.mb-1,
.sig-hero.mb-2,
.sig-hero.mb-3,
.sig-hero.mb-4,
.sig-hero.mb-5 {
    margin-bottom: 1.75rem !important;
}

.sig-hero-ambient {
    position: absolute;
    inset: -1.25rem -0.5rem;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
    border-radius: 0;
    opacity: 0;
    animation: sha-fade-in 1.2s ease-out 0.15s forwards;
}

.sig-hero-ambient .sha-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 32px 32px;
    background-position: -1px -1px;
    mask-image: radial-gradient(ellipse 80% 70% at 10% 50%, rgba(0,0,0,0.9), transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 10% 50%, rgba(0,0,0,0.9), transparent 75%);
}

.sig-hero-ambient .sha-glow {
    position: absolute;
    left: -80px;
    top: 50%;
    width: 420px;
    height: 420px;
    transform: translateY(-50%);
    background: radial-gradient(circle,
        rgba(var(--sig-hero-tone), 0.18) 0%,
        rgba(var(--sig-hero-tone), 0.06) 30%,
        transparent 65%);
    filter: blur(10px);
    animation: sha-glow-drift 9s ease-in-out infinite;
}

.sig-hero-ambient .sha-scanline {
    position: absolute;
    left: 0;
    right: 0;
    top: 30%;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(var(--sig-hero-tone), 0.25) 15%,
        rgba(var(--sig-hero-tone), 0.45) 50%,
        rgba(var(--sig-hero-tone), 0.25) 85%,
        transparent 100%);
    opacity: 0.5;
    animation: sha-scan 7s linear infinite;
}

.sig-hero-content {
    position: relative;
    z-index: 1;
}

.sig-hero-crumb {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--sig-mono);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: rgba(var(--sig-hero-tone), 0.9);
    margin-bottom: 0.55rem;
    text-shadow: 0 0 10px rgba(var(--sig-hero-tone), 0.4);
}

.sig-hero-crumb .crumb-bracket {
    color: rgba(var(--sig-hero-tone), 0.5);
    font-weight: 400;
}

.sig-hero-crumb .crumb-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: rgb(var(--sig-hero-tone));
    box-shadow: 0 0 8px rgba(var(--sig-hero-tone), 0.8);
    animation: sha-crumb-dot 1.8s ease-out infinite;
    margin-left: 0.2rem;
}

.sig-hero-title {
    font-size: clamp(1.3rem, 3.5vw, 1.9rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin: 0 0 0.45rem;
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: #fff;
}

.sig-hero-title-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(var(--sig-hero-tone), 0.22) 0%, rgba(var(--sig-hero-tone), 0.05) 100%);
    border: 1px solid rgba(var(--sig-hero-tone), 0.3);
    color: rgb(var(--sig-hero-tone));
    filter: brightness(1.15);
    font-size: 1.1rem;
    box-shadow: 0 4px 16px rgba(var(--sig-hero-tone), 0.2), inset 0 1px 0 rgba(255,255,255,0.05);
    flex-shrink: 0;
    position: relative;
}

.sig-hero-title-icon .hero-icon-ping {
    position: absolute;
    inset: -4px;
    border-radius: 12px;
    border: 1px solid rgba(var(--sig-hero-tone), 0.6);
    opacity: 0;
    animation: hero-icon-ping 2.8s ease-out infinite;
    pointer-events: none;
}

.sig-hero-title-text {
    background: linear-gradient(180deg, #fff 0%, #d6dbe0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sig-hero-meta {
    font-size: 0.82rem;
    line-height: 1.5;
    color: rgba(255,255,255,0.45);
    margin: 0;
}

/* ════════════════════════════════════════════════════════════
 * BUTTONS — Premium action buttons
 * ════════════════════════════════════════════════════════════ */
.sig-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.55rem 1rem;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s var(--sig-ease);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.2;
    position: relative;
    overflow: hidden;
}

.sig-btn:active { transform: translateY(1px); }
.sig-btn i { font-size: 0.95rem; line-height: 1; }

.sig-btn--ghost {
    background: rgba(255,255,255,0.03);
    border-color: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.85);
    box-shadow: 0 1px 2px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.02);
}
.sig-btn--ghost:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.18);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.04);
}

.sig-btn--primary {
    background-color: #f12c4c;
    background-image: linear-gradient(180deg, #f12c4c 0%, #d61f3d 100%);
    border-color: rgba(241,44,76,0.6);
    color: #fff;
    box-shadow: 0 4px 14px -2px rgba(241,44,76,0.4), inset 0 1px 0 rgba(255,255,255,0.15);
}
.sig-btn--primary:hover {
    background-color: #ff3656;
    background-image: linear-gradient(180deg, #ff3656 0%, #e02543 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px -2px rgba(241,44,76,0.55), inset 0 1px 0 rgba(255,255,255,0.2);
    color: #fff;
}
.sig-btn--primary::before {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    left: -60%;
    width: 40%;
    background: linear-gradient(110deg,
        transparent 0%,
        rgba(255,255,255,0) 30%,
        rgba(255,255,255,0.28) 50%,
        rgba(255,255,255,0) 70%,
        transparent 100%);
    transform: skewX(-16deg);
    animation: sig-shine 7s var(--sig-ease) infinite;
    pointer-events: none;
}
.sig-btn--primary:hover::before { animation-duration: 3s; }

.sig-btn--strategy {
    background: linear-gradient(180deg, rgba(245,158,11,0.18) 0%, rgba(245,158,11,0.08) 100%);
    border-color: rgba(245,158,11,0.4);
    color: #fcd34d;
    box-shadow: 0 2px 8px rgba(245,158,11,0.12), inset 0 1px 0 rgba(255,255,255,0.04);
}
.sig-btn--strategy:hover {
    background: linear-gradient(180deg, rgba(245,158,11,0.28) 0%, rgba(245,158,11,0.14) 100%);
    border-color: rgba(245,158,11,0.6);
    color: #fde68a;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(245,158,11,0.25), inset 0 1px 0 rgba(255,255,255,0.06);
}
.sig-btn--strategy i { color: #fcd34d; }
.sig-btn--strategy:hover i { color: #fde68a; }

.sig-btn--success {
    background: linear-gradient(180deg, #22c55e 0%, #16a34a 100%);
    border-color: rgba(34,197,94,0.6);
    color: #fff;
    box-shadow: 0 4px 14px -2px rgba(34,197,94,0.4), inset 0 1px 0 rgba(255,255,255,0.15);
}
.sig-btn--success:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px -2px rgba(34,197,94,0.55), inset 0 1px 0 rgba(255,255,255,0.2);
    color: #fff;
}

.sig-btn--danger {
    background: linear-gradient(180deg, #ef4444 0%, #dc2626 100%);
    border-color: rgba(239,68,68,0.5);
    color: #fff;
    box-shadow: 0 4px 12px -2px rgba(239,68,68,0.35), inset 0 1px 0 rgba(255,255,255,0.12);
}
.sig-btn--danger:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    color: #fff;
}

.sig-btn .sig-btn-chevron {
    font-size: 0.72rem !important;
    opacity: 0.75;
    margin-left: 0.15rem;
    transition: transform 0.2s var(--sig-ease);
}
.sig-btn[aria-expanded="true"] .sig-btn-chevron { transform: rotate(180deg); }

/* Icon-only action buttons (row actions, card tools) */
.sig-icon-btn {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 7px;
    border: 1px solid rgba(255,255,255,0.06);
    background: rgba(255,255,255,0.02);
    color: rgba(255,255,255,0.5);
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.15s var(--sig-ease);
    padding: 0;
}
.sig-icon-btn:hover { transform: translateY(-1px); }
.sig-icon-btn--edit:hover {
    background: rgba(13,202,240,0.1);
    border-color: rgba(13,202,240,0.3);
    color: #5eead4;
}
.sig-icon-btn--info:hover {
    background: rgba(13,110,253,0.1);
    border-color: rgba(13,110,253,0.3);
    color: #7dd3fc;
}
.sig-icon-btn--warning:hover {
    background: rgba(245,158,11,0.1);
    border-color: rgba(245,158,11,0.3);
    color: #fcd34d;
}
.sig-icon-btn--danger:hover {
    background: rgba(241,44,76,0.1);
    border-color: rgba(241,44,76,0.3);
    color: #ff7a92;
}

/* ════════════════════════════════════════════════════════════
 * POWER BUTTON — broadcast control (shared)
 * ════════════════════════════════════════════════════════════ */
.sig-power-btn {
    cursor: pointer;
    user-select: none;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.55rem 1rem 0.55rem 0.55rem;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.08);
    transition: all 0.25s var(--sig-ease);
    overflow: hidden;
    min-width: 150px;
    background-image:
        linear-gradient(145deg, #1d2126 0%, #16191d 100%),
        repeating-linear-gradient(90deg,
            transparent 0, transparent 3px,
            rgba(255,255,255,0.015) 3px, rgba(255,255,255,0.015) 4px);
}

.sig-power-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.05) 0%, transparent 60%);
    pointer-events: none;
    transition: opacity 0.3s;
}

.sig-power-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(255,255,255,0.14);
}
.sig-power-btn:active { transform: translateY(0); }
.sig-power-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(241,44,76,0.35);
}

.sig-power-btn .sig-power-corner {
    position: absolute;
    width: 8px;
    height: 8px;
    pointer-events: none;
    opacity: 0.4;
    transition: opacity 0.25s ease, border-color 0.25s ease;
}
.sig-power-btn .sig-power-corner--tl {
    top: 4px; left: 4px;
    border-top: 1px solid rgba(255,255,255,0.3);
    border-left: 1px solid rgba(255,255,255,0.3);
}
.sig-power-btn .sig-power-corner--br {
    bottom: 4px; right: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.3);
    border-right: 1px solid rgba(255,255,255,0.3);
}

.sig-power-icon-wrapper {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    flex-shrink: 0;
    transition: all 0.3s var(--sig-ease);
}

.sig-power-icon {
    font-size: 1.2rem !important;
    transition: all 0.3s;
}

.sig-power-lines {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    gap: 1px;
    min-width: 0;
}

.sig-power-label {
    font-family: var(--sig-mono);
    font-size: 0.6rem !important;
    font-weight: 700;
    letter-spacing: 0.14em !important;
    text-transform: uppercase;
    color: rgba(255,255,255,0.45) !important;
}

.sig-power-status {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.sig-power-bars {
    display: inline-flex;
    align-items: flex-end;
    gap: 2px;
    height: 14px;
    padding: 0 1px;
}
.sig-power-bars i {
    display: inline-block;
    width: 3px;
    border-radius: 1px;
    background: rgba(255,255,255,0.25);
    transition: background 0.3s, height 0.3s;
}
.sig-power-bars i:nth-child(1) { height: 4px;  }
.sig-power-bars i:nth-child(2) { height: 7px;  }
.sig-power-bars i:nth-child(3) { height: 10px; }
.sig-power-bars i:nth-child(4) { height: 13px; }

/* Back-compat: `system-on` / `system-off` classes also accepted on .sig-power-btn */
.sig-power-btn.system-off .sig-power-icon-wrapper,
.sig-power-btn.is-off .sig-power-icon-wrapper {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.05);
    color: #6c757d;
}
.sig-power-btn.system-off .sig-power-icon,
.sig-power-btn.system-off .sig-power-status,
.sig-power-btn.is-off .sig-power-icon,
.sig-power-btn.is-off .sig-power-status { color: #6c757d; }
.sig-power-btn.system-off .sig-power-bars i,
.sig-power-btn.is-off .sig-power-bars i { background: rgba(255,255,255,0.12); }

.sig-power-btn.system-on,
.sig-power-btn.is-on {
    background-image:
        linear-gradient(145deg, rgba(34,197,94,0.20) 0%, rgba(22,163,74,0.08) 100%),
        repeating-linear-gradient(90deg,
            transparent 0, transparent 3px,
            rgba(34,197,94,0.025) 3px, rgba(34,197,94,0.025) 4px);
    border-color: rgba(34,197,94,0.35);
    box-shadow: 0 0 0 1px rgba(34,197,94,0.15), 0 8px 24px -6px rgba(34,197,94,0.4);
}
.sig-power-btn.system-on .sig-power-icon-wrapper,
.sig-power-btn.is-on .sig-power-icon-wrapper {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    border: 1px solid rgba(34,197,94,0.6);
    color: #fff;
    box-shadow: 0 4px 12px rgba(34,197,94,0.4), inset 0 1px 0 rgba(255,255,255,0.25);
}
.sig-power-btn.system-on .sig-power-icon,
.sig-power-btn.is-on .sig-power-icon {
    color: #fff;
    animation: sig-power-icon-pulse 2s ease-in-out infinite;
}
.sig-power-btn.system-on .sig-power-label,
.sig-power-btn.is-on .sig-power-label { color: rgba(255,255,255,0.6) !important; }
.sig-power-btn.system-on .sig-power-status,
.sig-power-btn.is-on .sig-power-status { color: #fff; }
.sig-power-btn.system-on .sig-power-corner,
.sig-power-btn.is-on .sig-power-corner {
    opacity: 0.7;
    border-color: rgba(74, 222, 128, 0.55) !important;
}
.sig-power-btn.system-on .sig-power-bars i,
.sig-power-btn.is-on .sig-power-bars i {
    background: #4ade80;
    box-shadow: 0 0 6px rgba(74, 222, 128, 0.55);
    animation: sig-bars-wave 1.4s ease-in-out infinite;
}
.sig-power-btn.system-on .sig-power-bars i:nth-child(1),
.sig-power-btn.is-on .sig-power-bars i:nth-child(1) { animation-delay: 0s; }
.sig-power-btn.system-on .sig-power-bars i:nth-child(2),
.sig-power-btn.is-on .sig-power-bars i:nth-child(2) { animation-delay: 0.12s; }
.sig-power-btn.system-on .sig-power-bars i:nth-child(3),
.sig-power-btn.is-on .sig-power-bars i:nth-child(3) { animation-delay: 0.24s; }
.sig-power-btn.system-on .sig-power-bars i:nth-child(4),
.sig-power-btn.is-on .sig-power-bars i:nth-child(4) { animation-delay: 0.36s; }

/* (is-on / is-off are handled by the combined block above; no extra rules needed) */

/* ════════════════════════════════════════════════════════════
 * CARDS — Premium with corner markers
 * ════════════════════════════════════════════════════════════ */
.sig-card {
    background-image:
        linear-gradient(180deg, #1c1f24 0%, #181b1f 100%),
        url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.03 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
    background-blend-mode: normal, overlay;
    background-size: auto, 200px 200px;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--sig-radius-lg);
    box-shadow: var(--sig-shadow-md);
    overflow: hidden;
    position: relative;
    --sig-card-tone: var(--sig-red);
    /* Bootstrap card-body uses these vars — define them here so
       a plain <div class="card-body"> inside .sig-card inherits sane padding. */
    --bs-card-spacer-y: 1.25rem;
    --bs-card-spacer-x: 1.5rem;
}

/* Direct-child card-body inside sig-card: consistent padding.
   Keep ancestor z-index so content sits above ::before/::after decoration. */
.sig-card > .card-body {
    padding: var(--bs-card-spacer-y) var(--bs-card-spacer-x);
    position: relative;
    z-index: 2;
}

/* Explicit override for p-0 utility (tables, empty-states that fill the card) */
.sig-card > .card-body.p-0 { padding: 0 !important; }

/* Ajuste fino no mobile */
@media (max-width: 575.98px) {
    .sig-card {
        --bs-card-spacer-y: 1rem;
        --bs-card-spacer-x: 1rem;
    }
}

.sig-card.sig-card--amber  { --sig-card-tone: var(--sig-amber);  }
.sig-card.sig-card--green  { --sig-card-tone: var(--sig-green);  }
.sig-card.sig-card--info   { --sig-card-tone: var(--sig-info);   }

.sig-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
    pointer-events: none;
    z-index: 1;
}

.sig-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    pointer-events: none;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(var(--sig-card-tone), 0.18) 10%,
        rgba(var(--sig-card-tone), 0.7) 50%,
        rgba(var(--sig-card-tone), 0.18) 90%,
        transparent 100%);
    background-size: 200% 100%;
    animation: sig-accent-flow 6s linear infinite;
    z-index: 1;
}

/* Brutalist corner markers */
.sig-corner {
    position: absolute;
    width: 14px;
    height: 14px;
    pointer-events: none;
    z-index: 2;
    opacity: 0.55;
    transition: opacity 0.3s ease;
    border-color: rgba(var(--sig-card-tone), 0.4);
}
.sig-card:hover .sig-corner { opacity: 0.9; }
.sig-corner--tl { top: 8px; left: 8px;      border-top: 1px solid; border-left: 1px solid;   }
.sig-corner--tr { top: 8px; right: 8px;     border-top: 1px solid; border-right: 1px solid;  }
.sig-corner--bl { bottom: 8px; left: 8px;   border-bottom: 1px solid; border-left: 1px solid; }
.sig-corner--br { bottom: 8px; right: 8px;  border-bottom: 1px solid; border-right: 1px solid; }

.sig-card[data-sig-enter] {
    opacity: 0;
    transform: translateY(14px);
    animation: sig-card-enter 0.6s var(--sig-ease) forwards;
}
.sig-card[data-sig-enter="1"] { animation-delay: 0.15s; }
.sig-card[data-sig-enter="2"] { animation-delay: 0.3s; }
.sig-card[data-sig-enter="3"] { animation-delay: 0.45s; }
.sig-card[data-sig-enter="4"] { animation-delay: 0.6s; }

.sig-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 1.5rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    gap: 0.75rem;
    position: relative;
    z-index: 1;
}

.sig-card-header-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0;
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: -0.005em;
    color: #fff;
}

.sig-card-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.92rem;
    flex-shrink: 0;
    background: rgba(var(--sig-card-tone), 0.12);
    border: 1px solid rgba(var(--sig-card-tone), 0.25);
    color: rgb(var(--sig-card-tone));
    filter: brightness(1.15);
    position: relative;
}

/* ════════════════════════════════════════════════════════════
 * COUNT BADGE — bracket-framed tabular readout
 * ════════════════════════════════════════════════════════════ */
.sig-count-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--sig-mono);
    padding: 0.3rem 0.7rem;
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    border-radius: 20px;
    background: rgba(0,0,0,0.25);
    color: rgba(255,255,255,0.45);
    border: 1px solid rgba(255,255,255,0.06);
    transition: all 0.2s;
    font-variant-numeric: tabular-nums;
    --sig-badge-tone: 255, 255, 255;
}

.sig-count-badge.has-items { color: rgb(var(--sig-badge-tone)); }
.sig-count-badge.tone-primary { --sig-badge-tone: var(--sig-red); }
.sig-count-badge.tone-amber   { --sig-badge-tone: var(--sig-amber); }
.sig-count-badge.tone-green   { --sig-badge-tone: var(--sig-green); }
.sig-count-badge.tone-info    { --sig-badge-tone: var(--sig-info); }

.sig-count-badge.has-items {
    background: linear-gradient(180deg, rgba(var(--sig-badge-tone), 0.14) 0%, rgba(var(--sig-badge-tone), 0.06) 100%);
    border-color: rgba(var(--sig-badge-tone), 0.3);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.04), 0 0 12px rgba(var(--sig-badge-tone), 0.1);
}

.sig-count-badge .cb-bracket { opacity: 0.4; font-weight: 400; }
.sig-count-badge .cb-num     { font-weight: 700; font-variant-numeric: tabular-nums; min-width: 12px; text-align: center; }
.sig-count-badge .cb-label   { opacity: 0.7; font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.08em; }

.sig-count-badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.8;
    animation: cb-dot-pulse 1.8s ease-in-out infinite;
}

/* ════════════════════════════════════════════════════════════
 * TABLES — refined dark
 * ════════════════════════════════════════════════════════════ */
.sig-table {
    font-size: 0.88rem;
    margin: 0;
    color: rgba(255,255,255,0.75);
    --sig-table-tone: var(--sig-red);
}

.sig-table.tone-amber  { --sig-table-tone: var(--sig-amber); }
.sig-table.tone-green  { --sig-table-tone: var(--sig-green); }
.sig-table.tone-info   { --sig-table-tone: var(--sig-info); }

.sig-table thead {
    background: linear-gradient(180deg, rgba(255,255,255,0.028) 0%, rgba(255,255,255,0.005) 100%);
}

.sig-table thead th {
    font-size: 0.66rem !important;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35) !important;
    padding: 0.85rem 0.75rem !important;
    border-bottom: 1px solid rgba(255,255,255,0.06) !important;
    border-top: none !important;
    background: transparent !important;
    white-space: nowrap;
}
.sig-table thead th:first-child { padding-left: 1.25rem !important; }
.sig-table thead th:last-child  { padding-right: 1.25rem !important; }

.sig-table tbody td {
    padding: 0.85rem 0.75rem !important;
    border-bottom: 1px solid rgba(255,255,255,0.035) !important;
    border-top: none !important;
    vertical-align: middle;
    background: transparent !important;
}
.sig-table tbody td:first-child { padding-left: 1.25rem !important; }
.sig-table tbody td:last-child  { padding-right: 1.25rem !important; }

.sig-table tbody tr {
    transition: background-color 0.18s var(--sig-ease);
    position: relative;
}
.sig-table tbody tr:last-child td { border-bottom: none !important; }
.sig-table tbody tr:hover {
    background: rgba(255,255,255,0.02) !important;
    --bs-table-hover-bg: transparent !important;
}
.sig-table tbody tr:hover td:first-child {
    box-shadow: inset 3px 0 0 rgb(var(--sig-table-tone));
}

/* Monospace time cells */
.sig-time-cell {
    display: flex;
    flex-direction: column;
    gap: 1px;
    line-height: 1.1;
}
.sig-time-main {
    font-family: var(--sig-mono);
    font-weight: 700;
    font-size: 0.95rem;
    color: #fff;
    letter-spacing: 0.03em;
    font-variant-numeric: tabular-nums;
    transition: color 0.2s, text-shadow 0.2s;
}
.sig-time-date {
    font-family: var(--sig-mono);
    font-size: 0.68rem;
    color: rgba(255,255,255,0.3);
    letter-spacing: 0.06em;
    font-variant-numeric: tabular-nums;
    text-transform: uppercase;
}
.sig-table tbody tr:hover .sig-time-main {
    color: rgb(var(--sig-red-hot));
    text-shadow: 0 0 12px rgba(var(--sig-red), 0.4);
}

/* Checkboxes */
.sig-table .form-check-input {
    width: 1.05rem;
    height: 1.05rem;
    background-color: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.2);
    cursor: pointer;
    margin: 0;
}
.sig-table .form-check-input:checked {
    background-color: rgb(var(--sig-red));
    border-color: rgb(var(--sig-red));
}

/* ════════════════════════════════════════════════════════════
 * EMPTY STATES — radar sweep
 * ════════════════════════════════════════════════════════════ */
.sig-empty {
    padding: 4rem 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    padding-bottom: 3.5rem;
}

.sig-empty-radar {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.25rem;
    --sig-empty-tone: 255, 255, 255;
}

.sig-empty-radar.tone-primary { --sig-empty-tone: var(--sig-red); }
.sig-empty-radar.tone-amber   { --sig-empty-tone: var(--sig-amber); }
.sig-empty-radar.tone-green   { --sig-empty-tone: var(--sig-green); }
.sig-empty-radar.tone-info    { --sig-empty-tone: var(--sig-info); }

.sig-empty-radar .radar-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(var(--sig-empty-tone), 0.22);
    opacity: 0;
    animation: radar-pulse 3.2s var(--sig-ease) infinite;
}
.sig-empty-radar .r1 { width: 72px;  height: 72px;  animation-delay: 0s; }
.sig-empty-radar .r2 { width: 96px;  height: 96px;  animation-delay: 0.6s; }
.sig-empty-radar .r3 { width: 120px; height: 120px; animation-delay: 1.2s; }

.sig-empty-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.9rem;
    background: radial-gradient(circle at 30% 30%, rgba(var(--sig-empty-tone, 255, 255, 255), 0.12), rgba(255,255,255,0.01));
    border: 1px solid rgba(var(--sig-empty-tone, 255, 255, 255), 0.2);
    color: rgba(var(--sig-empty-tone, 255, 255, 255), 0.55);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
    position: relative;
    z-index: 1;
}

.sig-empty-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(255,255,255,0.55);
    margin: 0;
    letter-spacing: 0;
}
.sig-empty-sub {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.3);
    margin: 0;
    max-width: 340px;
    line-height: 1.5;
}

/* ════════════════════════════════════════════════════════════
 * DROPDOWN MENU — app-style
 * ════════════════════════════════════════════════════════════ */
.sig-dropdown-wrap { position: relative; }

.sig-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    z-index: 1040;
    min-width: 260px;
    padding: 0.5rem;
    margin: 0;
    list-style: none;
    background:
        linear-gradient(180deg, #22262c 0%, #1a1d22 100%),
        url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.025 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
    background-blend-mode: normal, overlay;
    background-size: auto, 200px 200px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 14px;
    box-shadow: 0 24px 48px -12px rgba(0,0,0,0.7), 0 8px 20px -6px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.03);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px) scale(0.98);
    transform-origin: top right;
    transition: all 0.18s var(--sig-ease);
    pointer-events: none;
}

.sig-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.sig-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 1.2rem;
    width: 12px;
    height: 12px;
    background: #22262c;
    border-left: 1px solid rgba(255,255,255,0.08);
    border-top: 1px solid rgba(255,255,255,0.08);
    transform: rotate(45deg);
    border-radius: 2px 0 0 0;
}

.sig-dropdown-heading {
    font-family: var(--sig-mono);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    padding: 0.4rem 0.7rem 0.35rem;
    display: block;
    position: relative;
}
.sig-dropdown-heading::before {
    content: '◆';
    display: inline-block;
    margin-right: 0.4rem;
    color: rgba(var(--sig-red), 0.5);
    font-size: 0.6rem;
}

.sig-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    width: 100%;
    padding: 0.65rem 0.75rem;
    border-radius: 10px;
    border: 1px solid transparent;
    background: transparent;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.15s var(--sig-ease);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: left;
    position: relative;
}
.sig-dropdown-item:hover {
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.06);
    color: #fff;
}
.sig-dropdown-item:hover .sig-dropdown-icon { transform: scale(1.06); }

.sig-dropdown-item::after {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 50%;
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, rgb(var(--sig-red-hot)), rgb(var(--sig-red)));
    border-radius: 3px;
    transform: translateY(-50%);
    transition: height 0.2s var(--sig-ease);
}
.sig-dropdown-item:hover::after { height: 60%; }

.sig-dropdown-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    transition: transform 0.18s var(--sig-ease);
    background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
    border: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.75);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}
.sig-dropdown-icon--primary {
    background: linear-gradient(135deg, rgba(241,44,76,0.22) 0%, rgba(241,44,76,0.06) 100%);
    border-color: rgba(241,44,76,0.3);
    color: #ff7a92;
}
.sig-dropdown-icon--amber {
    background: linear-gradient(135deg, rgba(245,158,11,0.22) 0%, rgba(245,158,11,0.06) 100%);
    border-color: rgba(245,158,11,0.3);
    color: #fcd34d;
}
.sig-dropdown-icon--green {
    background: linear-gradient(135deg, rgba(34,197,94,0.22) 0%, rgba(34,197,94,0.06) 100%);
    border-color: rgba(34,197,94,0.3);
    color: #4ade80;
}
.sig-dropdown-icon--info {
    background: linear-gradient(135deg, rgba(13,202,240,0.22) 0%, rgba(13,202,240,0.06) 100%);
    border-color: rgba(13,202,240,0.3);
    color: #5eead4;
}

.sig-dropdown-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
    flex-grow: 1;
}
.sig-dropdown-title {
    font-weight: 600;
    font-size: 0.85rem;
    color: #fff;
    line-height: 1.2;
}
.sig-dropdown-sub {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.4);
    line-height: 1.3;
}

.sig-dropdown-arrow {
    color: rgba(255,255,255,0.25);
    font-size: 0.8rem;
    flex-shrink: 0;
    transition: transform 0.18s, color 0.18s;
}
.sig-dropdown-item:hover .sig-dropdown-arrow {
    color: rgba(255,255,255,0.7);
    transform: translateX(3px);
}

.sig-dropdown-divider {
    height: 1px;
    background: rgba(255,255,255,0.05);
    margin: 0.35rem 0.5rem;
    border: 0;
}

/* ════════════════════════════════════════════════════════════
 * MODALS — premium dark
 * ════════════════════════════════════════════════════════════ */
.sig-modal .modal-content {
    background: linear-gradient(180deg, #1e2126 0%, #17191d 100%) !important;
    border: 1px solid rgba(255,255,255,0.08) !important;
    border-radius: 14px !important;
    box-shadow: 0 24px 48px -16px rgba(0,0,0,0.8), 0 0 0 1px rgba(255,255,255,0.04) !important;
    overflow: hidden;
}
.sig-modal .modal-header {
    padding: 1.1rem 1.5rem !important;
    border-bottom: 1px solid rgba(255,255,255,0.06) !important;
    background: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, transparent 100%);
}
.sig-modal .modal-title {
    font-size: 1rem !important;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.sig-modal .modal-title i {
    width: 26px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 7px;
    background: linear-gradient(135deg, rgba(241,44,76,0.2) 0%, rgba(241,44,76,0.05) 100%);
    border: 1px solid rgba(241,44,76,0.3);
    font-size: 0.8rem !important;
    color: #ff7a92;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}
.sig-modal .modal-body { padding: 1.5rem !important; }
.sig-modal .modal-footer {
    padding: 1rem 1.5rem !important;
    border-top: 1px solid rgba(255,255,255,0.06) !important;
    background: rgba(0,0,0,0.15);
    gap: 0.5rem;
}
.sig-modal .modal-footer .btn {
    border-radius: 8px !important;
    font-weight: 600;
    padding: 0.5rem 1rem !important;
    font-size: 0.82rem !important;
}

.sig-modal .modal-body .form-label {
    font-size: 0.75rem !important;
    font-weight: 600 !important;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5) !important;
    margin-bottom: 0.45rem !important;
}
.sig-modal .modal-body .form-label .text-danger { text-transform: none; }
.sig-modal .modal-body .form-control,
.sig-modal .modal-body .form-select {
    background: #0d1014 !important;
    border: 1px solid rgba(255,255,255,0.08) !important;
    border-radius: 8px !important;
    color: #fff !important;
    font-size: 0.88rem !important;
    padding: 0.55rem 0.8rem !important;
    transition: all 0.15s;
}
.sig-modal .modal-body .form-control:focus,
.sig-modal .modal-body .form-select:focus {
    border-color: rgba(241,44,76,0.45) !important;
    box-shadow: 0 0 0 3px rgba(241,44,76,0.15) !important;
    background: #0d1014 !important;
}
.sig-modal .modal-body .form-text {
    font-size: 0.72rem !important;
    color: rgba(255,255,255,0.35) !important;
    margin-top: 0.35rem;
}

/* Info alert reuse */
.sig-info-alert {
    background: linear-gradient(180deg, rgba(13,202,240,0.08) 0%, rgba(13,202,240,0.03) 100%);
    border: 1px solid rgba(13,202,240,0.2);
    border-radius: 10px;
    padding: 0.8rem 1rem;
    font-size: 0.8rem;
    color: #5eead4;
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    line-height: 1.5;
}
.sig-info-alert i { font-size: 1rem; flex-shrink: 0; margin-top: 0.08rem; }

.sig-warn-alert {
    background: linear-gradient(180deg, rgba(245,158,11,0.08) 0%, rgba(245,158,11,0.03) 100%);
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: 10px;
    padding: 0.8rem 1rem;
    font-size: 0.8rem;
    color: #fcd34d;
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    line-height: 1.5;
}

/* ════════════════════════════════════════════════════════════
 * KEYFRAMES (shared)
 * ════════════════════════════════════════════════════════════ */
@keyframes sha-fade-in       { to { opacity: 1; } }
@keyframes sha-glow-drift {
    0%, 100% { transform: translate(0, -50%); opacity: 0.85; }
    50%      { transform: translate(30px, calc(-50% - 15px)); opacity: 1; }
}
@keyframes sha-scan {
    0%   { top: 10%;  opacity: 0; }
    8%   { opacity: 0.55; }
    50%  { top: 85%;  opacity: 0.35; }
    92%  { opacity: 0.15; }
    100% { top: 95%;  opacity: 0; }
}
@keyframes sha-crumb-dot {
    0%, 55% { transform: scale(1);   opacity: 1; }
    100%    { transform: scale(2.2); opacity: 0; box-shadow: 0 0 0 10px rgba(var(--sig-hero-tone), 0); }
}
@keyframes hero-icon-ping {
    0%   { transform: scale(0.85); opacity: 0.9; }
    70%  { transform: scale(1.35); opacity: 0; }
    100% { opacity: 0; }
}
@keyframes sig-shine {
    0%, 55% { left: -60%; }
    75%     { left: 120%; }
    100%    { left: 120%; }
}
@keyframes sig-power-icon-pulse {
    0%, 100% { filter: drop-shadow(0 0 0 rgba(255,255,255,0)); }
    50%      { filter: drop-shadow(0 0 8px rgba(255,255,255,0.85)); }
}
@keyframes sig-bars-wave {
    0%, 100% { opacity: 0.45; transform: scaleY(0.55); transform-origin: bottom; }
    50%      { opacity: 1;    transform: scaleY(1);    transform-origin: bottom; }
}
@keyframes sig-accent-flow {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
@keyframes sig-card-enter {
    to { opacity: 1; transform: translateY(0); }
}
@keyframes cb-dot-pulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50%      { opacity: 1;   transform: scale(1.15); }
}
@keyframes radar-pulse {
    0%   { opacity: 0;    transform: scale(0.85); }
    15%  { opacity: 0.9; }
    100% { opacity: 0;    transform: scale(1.1); }
}

/* Accessibility: respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .sig-card[data-sig-enter],
    .sig-hero-ambient,
    .sig-hero-ambient .sha-scanline,
    .sig-hero-ambient .sha-glow,
    .sig-hero-title-icon .hero-icon-ping,
    .sig-hero-crumb .crumb-dot,
    .sig-btn--primary::before,
    .sig-card::after,
    .sig-power-btn.is-on .sig-power-icon,
    .sig-power-btn.is-on .sig-power-bars i,
    .sig-empty-radar .radar-ring,
    .sig-count-badge .dot {
        animation: none !important;
    }
    .sig-card[data-sig-enter] { opacity: 1; transform: none; }
}

/* Focus rings across the system */
.sig-btn:focus-visible,
.sig-icon-btn:focus-visible,
.sig-dropdown-item:focus-visible,
.sig-power-btn:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 2px rgb(var(--sig-ink)),
        0 0 0 4px rgba(var(--sig-red), 0.6) !important;
}

/* Hero + actions layout */
.sig-hero-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

/* Mobile */
@media (max-width: 767.98px) {
    .sig-hero-actions {
        width: 100%;
        justify-content: stretch;
    }
    .sig-hero-actions .sig-dropdown-wrap { flex: 1 1 auto; }
    .sig-hero-actions .sig-btn { width: 100%; }
    .sig-power-btn { flex: 0 0 auto; }

    .sig-hero-ambient .sha-grid { opacity: 0.55; }
    .sig-hero-ambient .sha-glow { width: 280px; height: 280px; left: -60px; }
    .sig-hero-crumb { font-size: 0.6rem; letter-spacing: 0.1em; }
    .sig-empty-radar { width: 96px; height: 96px; }
    .sig-empty-radar .r1 { width: 56px; height: 56px; }
    .sig-empty-radar .r2 { width: 76px; height: 76px; }
    .sig-empty-radar .r3 { width: 96px; height: 96px; }
}

@media (max-width: 575.98px) {
    .sig-card-header { padding: 0.95rem 1rem 0.85rem !important; }
    .sig-count-badge .cb-label { display: none; }
    .sig-count-badge { padding: 0.3rem 0.55rem; }
    .sig-power-btn { min-width: 0; padding: 0.5rem 0.85rem 0.5rem 0.5rem; }
    .sig-power-bars { height: 12px; }
    .sig-empty { padding: 2.5rem 1rem 3rem; }
    .sig-empty-icon { width: 60px; height: 60px; font-size: 1.5rem; }
    .sig-modal .modal-body,
    .sig-modal .modal-header,
    .sig-modal .modal-footer { padding: 1rem !important; }
    .sig-table thead th:first-child,
    .sig-table tbody td:first-child { padding-left: 1rem !important; }
    .sig-table thead th:last-child,
    .sig-table tbody td:last-child { padding-right: 1rem !important; }
}

@media (max-width: 420px) {
    .sig-hero-actions { flex-direction: column; }
    .sig-power-btn { width: 100%; justify-content: center; }
    .sig-dropdown-wrap { width: 100%; }
}

@media (max-width: 575.98px) {
    .sig-dropdown-menu {
        min-width: 240px;
        right: auto;
        left: 0;
        transform-origin: top left;
    }
    .sig-dropdown-menu::before { right: auto; left: 1.2rem; }
}