/* Paleta de Colores - Estilo Dark Técnico */
:root {
    --bg-color: #0f172a;           /* Fondo oscuro profundo */
    --card-bg: #1e293b;            /* Fondo de tarjetas ligeramente más claro */
    --primary-color: #38bdf8;      /* Azul cian brillante para títulos y enfoque */
    --accent-color: #a855f7;       /* Púrpura para detalles */
    --success-btn: #10b981;        /* Verde esmeralda para guardar */
    --success-hover: #059669;
    --text-main: #f8fafc;          /* Texto casi blanco */
    --text-muted: #94a3b8;         /* Texto secundario grisáceo */
    --border-color: #334155;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 50px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

h1 {
    font-size: 28px;
    color: var(--text-main);
    margin-bottom: 5px;
    font-weight: 700;
}

h2 {
    font-size: 16px;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 0;
    margin-bottom: 30px;
}

/* Contenedores */
.container {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 500px;
    margin-bottom: 40px;
    box-sizing: border-box;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
}

.form-group {
    margin-bottom: 24px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input[type="text"] {
    width: 100%;
    padding: 12px 16px;
    background-color: #0f172a;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    color: var(--text-main);
    outline: none;
    transition: all 0.25s ease;
    box-sizing: border-box;
}

input[type="text"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

/* Botón de Guardar */
button {
    background-color: var(--success-btn);
    color: #ffffff;
    padding: 14px;
    border: none;
    border-radius: 8px;
    width: 100%;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
    margin-top: 10px;
}

button:hover {
    background-color: var(--success-hover);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(1px);
}

/* Tabla Estilo Tablero de Control */
.table-container {
    max-width: 800px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    background: transparent;
}

th, td {
    padding: 16px 20px;
    text-align: left;
}

th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

td {
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    color: #e2e8f0;
}

tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Alertas de error */
.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    padding: 14px;
    border-radius: 8px;
    text-align: center;
    font-size: 14px;
    margin-bottom: 25px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.exito {
    background-color: rgba(68, 68, 239, 0.1);
    color: #4aef44;
    padding: 14px;
    border-radius: 8px;
    text-align: center;
    font-size: 14px;
    margin-bottom: 25px;
    border: 1px solid rgba(173, 68, 239, 0.2);
}