:root {
    --bg-main: #0d0f12;
    --bg-card: #15181e;
    --bg-card-hover: #1a1e26;
    --bg-input: #20242c;
    --primary: #ff5722;
    --primary-hover: #f4511e;
    --primary-glow: rgba(255, 87, 34, 0.25);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --border: #262c36;
    --border-hover: #374151;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
}

body {
    background: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }

/* Contenedor estándar */
.main-wrapper {
    max-width: 1300px;
    margin: 35px auto;
    padding: 0 25px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.page-title {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.page-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Tarjetas */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 10px var(--primary-glow);
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-main);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background: var(--border);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
    background: var(--danger);
    color: #fff;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
    border-radius: 6px;
}

/* Tablas Premium */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.custom-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 13px;
}

.custom-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.01);
}

.custom-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
    vertical-align: middle;
}

.custom-table tbody tr {
    transition: background 0.15s ease;
}

.custom-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.custom-table tbody tr:last-child td {
    border-bottom: none;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
}
.badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }

/* Modales estrictamente ocultos por defecto */
.modal-overlay {
    display: none !important;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(6px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.open {
    display: flex !important;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    max-width: 520px;
    width: 100%;
    padding: 28px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 18px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
}
.modal-close:hover { color: #fff; }

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: #fff;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.form-control:focus {
    border-color: var(--primary);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Toast */
#toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 10000; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--bg-card); border-left: 4px solid var(--primary); color: #fff; padding: 12px 18px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.5); font-size: 13px; font-weight: 500; }
.toast.success { border-color: var(--success); }
.toast.danger { border-color: var(--danger); }