/* Reset y variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --admin-primary: #2563eb;
    --admin-secondary: #1d4ed8;
    --admin-accent: #3b82f6;
    --admin-dark: #1e293b;
    --admin-light: #f1f5f9;
    --admin-white: #ffffff;
    --admin-gray: #64748b;
    --admin-error: #dc2626;
}

/* Layout principal */
.admin-login-page {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-secondary) 100%);
    min-height: 100vh;
    overflow: hidden;
}

.admin-login-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 100vh;
}

/* Panel promocional */
.admin-promo-panel {
    background: linear-gradient(135deg, var(--admin-dark) 0%, #0f172a 100%);
    color: var(--admin-white);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.admin-promo-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.admin-logo {
    position: relative;
    z-index: 2;
}

.admin-logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(45deg, var(--admin-white), var(--admin-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-logo p {
    font-size: 1.1rem;
    opacity: 0.8;
    font-weight: 500;
}

.admin-promo-content {
    position: relative;
    z-index: 2;
}

.admin-promo-content h2 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 700;
}

.admin-promo-content p {
    font-size: 1.2rem;
    line-height: 1.6;
    opacity: 0.9;
    max-width: 400px;
}

.admin-features {
    position: relative;
    z-index: 2;
}

.feature {
    display: flex;
    align-items: center;
    margin-bottom: 0.8rem;
    font-size: 1rem;
    opacity: 0.9;
}

/* Panel del formulario */
.admin-form-panel {
    background: var(--admin-light);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.admin-auth-card {
    background: var(--admin-white);
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.15);
    width: 100%;
    max-width: 420px;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.admin-header {
    text-align: center;
    margin-bottom: 2rem;
}

.admin-badge {
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-accent));
    color: var(--admin-white);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-auth-card h2 {
    font-size: 2rem;
    color: var(--admin-dark);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.admin-subtitle {
    color: var(--admin-gray);
    font-size: 1rem;
}

/* Mensajes de error */
.admin-error-banner {
    background: #fef2f2;
    color: var(--admin-error);
    border: 1px solid #fecaca;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Formulario */
.admin-input-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.admin-input-group svg {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    stroke: var(--admin-gray);
    fill: none;
    stroke-width: 2px;
    z-index: 2;
}

.admin-input-group input {
    width: 100%;
    padding: 16px 20px 16px 55px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    background: #f8fafc;
    transition: all 0.3s ease;
    color: var(--admin-dark);
}

.admin-input-group input:focus {
    outline: none;
    border-color: var(--admin-primary);
    background: var(--admin-white);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.admin-input-group input::placeholder {
    color: var(--admin-gray);
}

/* Botón de login */
.admin-login-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-accent));
    color: var(--admin-white);
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.admin-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.admin-login-btn:active {
    transform: translateY(0);
}

/* Ayuda */
.admin-help {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: var(--admin-gray);
}

.admin-help a {
    color: var(--admin-primary);
    text-decoration: none;
    font-weight: 500;
}

.admin-help a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .admin-login-wrapper {
        grid-template-columns: 1fr;
    }
    
    .admin-promo-panel {
        display: none;
    }
    
    .admin-form-panel {
        padding: 1rem;
    }
    
    .admin-auth-card {
        padding: 2rem;
    }
    
    .admin-promo-content h2 {
        font-size: 2rem;
    }
}

/* Animaciones */
.admin-auth-card {
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Agregar estos estilos al archivo admin_login.css existente */

.admin-success-banner {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    box-shadow: 0 4px 12px rgba(72, 187, 120, 0.3);
}

.admin-error-banner {
    background: linear-gradient(135deg, #f56565, #e53e3e);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    box-shadow: 0 4px 12px rgba(245, 101, 101, 0.3);
}