:root {
    --cp-bg: #05070d;
    --cp-panel: #0b1220;
    --cp-deep: #060b14;
    --cp-line: #1e2c44;
    --cp-cyan: #00e5ff;
    --cp-cyan-dim: #0e6d80;
    --cp-pink: #ff2d78;
    --cp-amber: #ffb020;
    --cp-green: #3dff9e;
    --cp-red: #ff5470;
    --cp-text: #d7e3f4;
    --cp-dim: #8fa1bd;
}

body {
    background-color: var(--cp-bg);
    background-image:
        radial-gradient(ellipse 80% 40% at 50% -5%, rgba(0, 229, 255, 0.10), transparent),
        linear-gradient(rgba(0, 229, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.045) 1px, transparent 1px);
    background-size: auto, 44px 44px, 44px 44px;
    color: var(--cp-text);
    font-family: 'Rajdhani', 'Segoe UI', system-ui, sans-serif;
    font-size: 1.1rem;
    min-height: 100vh;
}

/* ---- barra superior ---- */
.navbar-cyber {
    background-color: rgba(5, 7, 13, 0.92);
    border-bottom: 1px solid var(--cp-line);
    box-shadow: 0 1px 12px rgba(0, 229, 255, 0.10);
}

.navbar-cyber .navbar-brand {
    font-family: 'Orbitron', monospace;
    font-size: 0.95rem;
    letter-spacing: 1px;
    color: var(--cp-text);
}

.navbar-cyber .brand-neon {
    color: var(--cp-cyan);
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.7);
}

.navbar-cyber .brand-dim {
    color: var(--cp-dim);
    font-size: 0.8rem;
}

.navbar-cyber .nav-link {
    color: var(--cp-dim);
    font-weight: 600;
    letter-spacing: 1px;
}

.navbar-cyber .nav-link:hover {
    color: var(--cp-cyan);
}

/* ---- tarjetas ---- */
.cp-card, .asistencia-panel, .asistencia-card {
    background: var(--cp-panel);
    border: 1px solid var(--cp-line);
    border-top: 3px solid var(--cp-cyan);
    border-radius: 4px;
    box-shadow: 0 0 28px rgba(0, 229, 255, 0.10), 0 8px 32px rgba(0, 0, 0, 0.5);
}

.cp-card, .asistencia-card {
    max-width: 600px;
    margin: 1rem auto;
    padding: 2rem;
}

.asistencia-panel {
    padding: 1.5rem;
}

.cp-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    font-size: 0.8rem;
    letter-spacing: 3px;
    color: var(--cp-green);
    margin-bottom: 0.5rem;
}

.cp-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--cp-green);
    box-shadow: 0 0 8px var(--cp-green);
    animation: cp-pulse 2s infinite;
}

@keyframes cp-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

.reloj {
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    font-size: 3rem;
    letter-spacing: 4px;
    color: #eafcff;
    text-shadow: 0 0 18px rgba(0, 229, 255, 0.8), 0 0 60px rgba(0, 229, 255, 0.35);
    font-variant-numeric: tabular-nums;
}

.fecha-larga {
    font-size: 1.05rem;
    letter-spacing: 1px;
    color: var(--cp-dim);
}

.cp-title {
    font-family: 'Orbitron', monospace;
    font-size: 1rem;
    letter-spacing: 2px;
    color: var(--cp-text);
    margin-top: 1rem;
}

.cp-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--cp-cyan);
    margin-bottom: 0.35rem;
}

.cp-hint {
    font-size: 0.9rem;
    color: var(--cp-dim);
    margin-top: 0.3rem;
}

.cp-footer {
    text-align: center;
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: var(--cp-dim);
    padding: 1.5rem 0 2rem;
}

/* ---- formularios oscuros ---- */
.form-control, .form-select {
    background-color: var(--cp-deep);
    border: 1px solid var(--cp-line);
    border-radius: 3px;
    color: var(--cp-text);
    font-weight: 600;
}

.form-control::placeholder {
    color: #54678a;
    font-weight: 500;
}

.form-control:focus, .form-select:focus {
    background-color: var(--cp-deep);
    border-color: var(--cp-cyan);
    color: #ffffff;
    box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.25), 0 0 14px rgba(0, 229, 255, 0.25);
}

.form-control[readonly] {
    background-color: #080e1a;
    color: var(--cp-dim);
    border-style: dashed;
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2300e5ff' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
}

.form-select option {
    background-color: var(--cp-panel);
    color: var(--cp-text);
}

/* ---- botones ---- */
.btn-primary, #btnRegistrar {
    background-color: var(--cp-cyan);
    border-color: var(--cp-cyan);
    color: #031318;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 2px;
    border-radius: 3px;
    box-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
}

.btn-primary:hover:not(:disabled), #btnRegistrar:hover:not(:disabled) {
    background-color: #6ff3ff;
    border-color: #6ff3ff;
    color: #031318;
    box-shadow: 0 0 26px rgba(0, 229, 255, 0.6);
}

.btn-primary:disabled, #btnRegistrar:disabled {
    background-color: #24334f;
    border-color: #24334f;
    color: #7288a8;
    box-shadow: none;
}

.btn-secondary {
    background-color: #1b2740;
    border-color: #2c3f63;
    color: var(--cp-text);
}

.btn-secondary:hover {
    background-color: #26375a;
    border-color: #3a5488;
    color: #fff;
}

.btn-outline-secondary {
    color: var(--cp-dim);
    border-color: #2c3f63;
}

.btn-outline-secondary:hover {
    color: var(--cp-cyan);
    border-color: var(--cp-cyan);
    background-color: rgba(0, 229, 255, 0.08);
}

.btn-outline-primary {
    color: var(--cp-cyan);
    border-color: var(--cp-cyan-dim);
}

.btn-outline-primary:hover {
    color: #031318;
    background-color: var(--cp-cyan);
    border-color: var(--cp-cyan);
}

.btn-danger {
    background-color: #7a1030;
    border-color: var(--cp-pink);
    color: #ffd7e3;
}

.btn-danger:hover {
    background-color: #a11241;
    border-color: var(--cp-pink);
    color: #fff;
}

.btn-outline-danger {
    color: var(--cp-red);
    border-color: #7a2c3d;
}

.btn-outline-danger:hover {
    background-color: var(--cp-pink);
    border-color: var(--cp-pink);
    color: #fff;
}

/* ---- alertas ---- */
.alert {
    border-radius: 3px;
    border-width: 1px;
}

.alert-success {
    background-color: rgba(61, 255, 158, 0.10);
    border-color: #1d7a4e;
    color: #b8ffd9;
}

.alert-danger {
    background-color: rgba(255, 45, 120, 0.10);
    border-color: #8a2447;
    color: #ffc4d4;
}

.alert-warning {
    background-color: rgba(255, 176, 32, 0.10);
    border-color: #8a6420;
    color: #ffe3ae;
}

.alert-info {
    background-color: rgba(0, 229, 255, 0.08);
    border-color: var(--cp-cyan-dim);
    color: #bdeffc;
}

/* ---- tablas admin ---- */
.table-asistencia {
    --bs-table-bg: transparent;
    --bs-table-color: var(--cp-text);
    --bs-table-border-color: var(--cp-line);
    --bs-table-striped-bg: rgba(148, 184, 255, 0.05);
    --bs-table-striped-color: var(--cp-text);
    --bs-table-active-bg: rgba(0, 229, 255, 0.08);
    --bs-table-active-color: var(--cp-text);
    --bs-table-hover-bg: rgba(0, 229, 255, 0.06);
    --bs-table-hover-color: var(--cp-text);
    color: var(--cp-text);
    border-color: var(--cp-line);
}

.table-asistencia th {
    color: var(--cp-cyan);
    font-size: 0.78rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--cp-cyan-dim);
    white-space: nowrap;
}

.table-asistencia td {
    border-color: var(--cp-line);
    vertical-align: middle;
}

h1.h4, .h4 {
    color: var(--cp-text);
    letter-spacing: 1px;
}

.text-muted {
    color: var(--cp-dim) !important;
}

@media (max-width: 576px) {
    .cp-card, .asistencia-card {
        padding: 1.25rem;
    }
    .reloj {
        font-size: 2.1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cp-dot {
        animation: none;
    }
}

/* ---- responsive ---- */
.navbar-cyber .navbar-toggler {
    border-color: var(--cp-line);
}

.navbar-cyber .navbar-toggler:focus {
    box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.25);
}

.navbar-cyber .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2300e5ff' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

@media (max-width: 575.98px) {
    .table.table-apilada, .table.table-apilada tbody {
        display: block;
        width: 100%;
    }

    .table.table-apilada thead {
        display: none;
    }

    .table.table-apilada tbody tr {
        display: block;
        border: 1px solid var(--cp-line);
        border-radius: 4px;
        margin-bottom: 0.75rem;
        padding: 0.5rem 0.8rem;
    }

    .table.table-apilada tbody tr:last-child {
        margin-bottom: 0;
    }

    .table.table-apilada td {
        display: block;
        width: 100%;
        border: none;
        padding: 0.25rem 0;
        white-space: normal;
    }

    .table.table-apilada td::before {
        content: attr(data-label);
        display: block;
        font-size: 0.72rem;
        font-weight: 700;
        letter-spacing: 2px;
        color: var(--cp-cyan);
    }
}