/**
 * Plataforma IPTV - Sistema de Estilos Corporativos Nativos y Locales
 * Estado: 100% Completo - Cero Dependencias de Internet Externa
 */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg-main: #1a1a2e;
    --bg-card: #27293d;
    --bg-input: #1e1e2f;
    --accent: #00d6b4;
    --accent-hover: #00b4d8;
    --text-white: #ffffff;
    --text-muted: #8b8d99;
    --danger: #ff3b30;
    --success: #34c759;
    --warning: #ffcc00;
}

body {
    background-color: var(--bg-main);
    color: var(--text-white);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.5;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

/* Estructura para el Login */
.login-card {
    background-color: var(--bg-card);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    width: 100%;
    max-width: 400px;
    padding: 40px 30px;
}

.text-center { text-align: center; }
.mb-1 { margin-bottom: 5px; }
.mb-3 { margin-bottom: 15px; }
.mb-4 { margin-bottom: 25px; }
.fw-bold { font-weight: 700; }
.small { font-size: 0.85rem; }

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.form-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    font-weight: 600;
}

.form-control-admin {
    background-color: var(--bg-input);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-white);
    padding: 12px 15px;
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

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

.btn-submit {
    background-color: var(--accent);
    color: #1a1a2e;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.2s;
}

.btn-submit:hover {
    background-color: var(--accent-hover);
}

.alert-danger {
    background-color: var(--danger);
    color: #ffffff;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
}