/* ==========================================================================
   MODERN LOGIN DESIGN - NOM-035 SYSTEM
   Diseño moderno y corporativo para login de usuarios y administradores
   ========================================================================== */

/* Variables CSS para consistencia */
:root {
    /* Colores corporativos */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #0ea5e9;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* Colores de fondo */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-dark: #1e293b;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Tipografía */
    --font-primary: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Bordes y sombras */
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Reset y configuración base */
* {
    box-sizing: border-box;
}

/* Configuración del body para login */
body.modern-login {
    margin: 0;
    padding: 0;
    font-family: var(--font-primary);
    background: #f5f5f5;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Contenedor principal del login */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 2;
}

/* Tarjeta principal de login */
.login-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    width: 100%;
    max-width: 900px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 600px;
    position: relative;
}

/* Panel izquierdo - Información corporativa */
.login-info-panel {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-info-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../argon/img/theme/profile-cover1.png') center/cover;
    opacity: 0.1;
    z-index: 1;
}

.login-info-content {
    position: relative;
    z-index: 2;
}

.login-logo {
    width: 120px;
    height: auto;
    margin-bottom: var(--spacing-xl);
    filter: brightness(0) invert(1);
}

.login-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.login-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

.login-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.login-features li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

.login-features li::before {
    content: '✓';
    margin-right: var(--spacing-md);
    font-weight: bold;
    color: var(--success-color);
}

/* Panel derecho - Formulario */
.login-form-panel {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-form-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.login-form-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--bg-dark);
    margin-bottom: var(--spacing-sm);
}

.login-form-description {
    color: var(--secondary-color);
    font-size: var(--font-size-base);
}

/* Formulario */
.login-form {
    width: 100%;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--bg-dark);
    margin-bottom: var(--spacing-sm);
}

.form-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--secondary-color);
    font-size: var(--font-size-lg);
    z-index: 2;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
    background: var(--bg-secondary);
}

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

.form-input.error {
    border-color: var(--danger-color);
}

.form-error {
    color: var(--danger-color);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: block;
}

/* Botón de login */
.login-button {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.login-button:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

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

.login-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Indicador de tipo de usuario */
.user-type-indicator {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* Diferenciación visual para admin */
.login-card.admin-login .login-info-panel {
    background: linear-gradient(135deg, #311ee4 0%, #281b99 100%);
}

.login-card.admin-login .user-type-indicator {
    background: rgba(220, 38, 38, 0.2);
}

.login-card.admin-login .login-button {
    background: #4726dc;
}

.login-card.admin-login .login-button:hover {
    background: #4726dc;
}

.login-card.admin-login .form-input:focus {
    border-color: #4726dc;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: var(--spacing-md);
    }
    
    .login-card {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .login-info-panel {
        padding: var(--spacing-xl);
        min-height: 200px;
    }
    
    .login-logo {
        width: 80px;
        margin-bottom: var(--spacing-md);
    }
    
    .login-title {
        font-size: var(--font-size-xl);
    }
    
    .login-subtitle {
        font-size: var(--font-size-base);
    }
    
    .login-features {
        display: none;
    }
    
    .login-form-panel {
        padding: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: var(--spacing-sm);
    }
    
    .login-form-panel {
        padding: var(--spacing-lg);
    }
    
    .login-info-panel {
        padding: var(--spacing-lg);
    }
}

/* Estados de carga */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible para navegación por teclado */
.form-input:focus-visible,
.login-button:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Modo oscuro (opcional) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-secondary: #1f2937;
        --bg-dark: #f9fafb;
        --secondary-color: #9ca3af;
    }
    
    .login-form-panel {
        background: var(--bg-secondary);
    }
    
    .login-form-title {
        color: var(--bg-dark);
    }
    
    .form-input {
        background: #374151;
        border-color: #4b5563;
        color: white;
    }
    
    .form-label {
        color: var(--bg-dark);
    }
}