/* ================================================
   LOGIN.CSS - Estilos específicos únicos para la página de Login
   ================================================ */

/* Body específico para login */
body {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

/* Contenedor principal específico del login */
.login-container {
    width: 100%;
    max-width: 500px;
    padding: 0;
    background-color: var(--bg-primary);
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* Header específico del login */
.login-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::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(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

/* Logo específico del login */
.login-logo {
    width: 100%;
    max-width: 350px;
    height: auto;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
    filter: brightness(0) invert(1);
    transition: all 0.3s ease;
}

.login-logo:hover {
    transform: scale(1.05);
    filter: brightness(0) invert(1) drop-shadow(0 0 10px rgba(255,255,255,0.5));
}

.login-header h1 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 2rem;
    font-weight: 300;
    position: relative;
    z-index: 1;
}

.login-header .lead {
    margin: 0;
    font-size: var(--font-size-lg);
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* Body específico del formulario */
.login-body {
    padding: 30px;
}

.login-body .form-group {
    margin-bottom: 25px;
}

/* Form controls específicos del login */
.login-body .form-control {
    height: 50px;
    border-radius: var(--border-radius);
    border: 2px solid #f1f3f4;
    font-size: 16px;
    transition: all 0.3s ease;
    padding: var(--spacing-sm) var(--spacing-md);
}

.login-body .form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    outline: none;
}

/* Input groups específicos del login */
.login-body .input-group-text {
    background-color: var(--bg-secondary);
    border: 2px solid #f1f3f4;
    border-right: none;
    color: var(--text-secondary);
}

.login-body .input-group .form-control {
    border-left: none;
}

/* Botón primario específico del login */
.login-body .btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: none;
    width: 100%;
    height: 50px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    color: white;
}

.login-body .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
    color: white;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
}

.login-body .btn-primary:disabled {
    opacity: 0.6;
    transform: none;
    cursor: not-allowed;
}

/* Mensajes específicos del login */
.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: var(--border-radius);
    border: 1px solid #f5c6cb;
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
}

.error-message i {
    margin-right: var(--spacing-sm);
}

/* Links específicos del footer */
.footer-links {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #f1f3f4;
}

.footer-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.footer-links a:hover {
    text-decoration: underline;
    color: var(--color-secondary);
}

/* Información específica de credenciales */
.credentials-info {
    background-color: #d1ecf1;
    color: #0c5460;
    padding: 15px;
    border-radius: var(--border-radius);
    border: 1px solid #bee5eb;
    margin-top: 15px;
    font-size: 13px;
    line-height: 1.5;
}

.credentials-info strong {
    color: #0c5460;
    font-weight: 600;
}

.credentials-info code {
    background-color: rgba(12, 84, 96, 0.1);
    color: #0c5460;
    padding: 2px 4px;
    border-radius: 3px;
    font-size: 12px;
}

/* Información específica de autenticación */
.auth-info {
    background-color: #fff3cd;
    color: #856404;
    padding: 15px;
    border-radius: var(--border-radius);
    border: 1px solid #ffeaa7;
    margin-top: 15px;
    font-size: 13px;
    line-height: 1.5;
}

.auth-info strong {
    color: #856404;
    font-weight: 600;
}

.auth-info code {
    background-color: rgba(133, 100, 4, 0.1);
    color: #856404;
    padding: 2px 4px;
    border-radius: 3px;
    font-size: 12px;
}

/* Labels específicos del login */
.login-body label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    display: block;
}

/* Efectos específicos de carga */
.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

/* Responsive específico del login */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .login-container {
        max-width: 450px;
    }
    
    .login-logo {
        max-width: 280px;
        margin-bottom: 15px;
    }
    
    .login-header {
        padding: 30px 20px;
    }
    
    .login-header h1 {
        font-size: 1.8rem;
    }
    
    .login-body {
        padding: 25px;
    }
    
    .login-body .form-group {
        margin-bottom: 20px;
    }
}

@media (max-width: 576px) {
    body {
        padding: 10px;
    }
    
    .login-container {
        max-width: 400px;
        margin: 10px;
    }
    
    .login-logo {
        max-width: 240px;
        margin-bottom: 10px;
    }
    
    .login-header {
        padding: 25px 15px;
    }
    
    .login-header h1 {
        font-size: 1.6rem;
    }
    
    .login-header .lead {
        font-size: var(--font-size-base);
    }
    
    .login-body {
        padding: 20px;
    }
    
    .login-body .form-control,
    .login-body .btn-primary {
        height: 45px;
        font-size: 15px;
    }
    
    .credentials-info,
    .auth-info {
        font-size: 12px;
        padding: 12px;
    }
}

@media (max-width: 400px) {
    .login-container {
        margin: 5px;
    }
    
    .login-logo {
        max-width: 200px;
    }
    
    .login-header {
        padding: 20px 10px;
    }
    
    .login-header h1 {
        font-size: 1.4rem;
    }
    
    .login-body {
        padding: 15px;
    }
}

/* Modo oscuro específico del login */
@media (prefers-color-scheme: dark) {
    .login-container {
        background-color: #1a1a1a;
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    }
    
    .login-body .form-control {
        background-color: #2a2a2a;
        border-color: #444;
        color: #f8f9fa;
    }
    
    .login-body .input-group-text {
        background-color: #333;
        border-color: #444;
        color: #ccc;
    }
    
    .footer-links {
        border-top-color: #444;
    }
}

/* Print específico del login */
@media print {
    body {
        background: white !important;
        color: black !important;
    }
    
    .login-container {
        box-shadow: none !important;
        border: 1px solid #ddd;
    }
    
    .login-header {
        background: #f8f9fa !important;
        color: black !important;
    }
    
    .login-logo {
        filter: none !important;
    }
    
    .credentials-info,
    .auth-info {
        background: #f8f9fa !important;
        color: black !important;
        border: 1px solid #ddd !important;
    }
}