/* Estilos para la página de login de FacturaME */

/* Variables CSS personalizadas */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary-color: #64748b;
    --success-color: #059669;
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --background-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --card-shadow-hover: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1f2937;
}

/* Contenedor principal del login */
.login-container {
    height: 100vh;
    background: var(--background-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

    /* Efecto de partículas de fondo */
    .login-container::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%), radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
        pointer-events: none;
    }

/* Tarjeta principal */
.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: 2rem 2rem;
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    position: relative;
    z-index: 1;
    overflow-y: auto;
}

    .login-card:hover {
        box-shadow: var(--card-shadow-hover);
        transform: translateY(-2px);
    }

/* Header del login */
.login-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.login-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: 15px;
    margin-bottom: 1rem;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

    .login-logo i {
        font-size: 2rem;
        color: white;
    }

.login-title {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 0.25rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    color: var(--secondary-color);
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
}

/* Formulario */
.form-floating {
    position: relative;
    margin-bottom: 1rem;
}

/* Grupo de input de contraseña */
.password-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.password-toggle-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: var(--transition);
    z-index: 10;
}

.password-toggle-btn:hover {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.password-toggle-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.password-input-group .form-control {
    padding-right: 3rem;
}

    .form-floating .form-control {
        height: 58px;
        border: 2px solid #e5e7eb;
        border-radius: 12px;
        padding: 1rem 1rem 0.25rem;
        font-size: 1rem;
        transition: var(--transition);
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(10px);
    }

        .form-floating .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
            background: rgba(255, 255, 255, 0.95);
            outline: none;
        }

    .form-floating label {
        color: var(--secondary-color);
        font-weight: 500;
        transition: var(--transition);
    }

    .form-floating .form-control:focus ~ label,
    .form-floating .form-control:not(:placeholder-shown) ~ label {
        color: var(--primary-color);
        transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
    }

/* Checkbox personalizado */
.form-check {
    margin-bottom: 1.5rem;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid #d1d5db;
    border-radius: 6px;
    transition: var(--transition);
}

    .form-check-input:checked {
        background-color: var(--primary-color);
        border-color: var(--primary-color);
    }

    .form-check-input:focus {
        box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    }

.form-check-label {
    font-weight: 500;
    color: #374151;
    margin-left: 0.5rem;
}

/* Botón de submit */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border: none;
    border-radius: 12px;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

    .btn-primary::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
        transition: left 0.5s;
    }

    .btn-primary:hover::before {
        left: 100%;
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5);
        background: linear-gradient(135deg, var(--primary-hover), #1e40af);
    }

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

    .btn-primary:disabled {
        opacity: 0.7;
        cursor: not-allowed;
        transform: none;
        box-shadow: 0 4px 14px rgba(37, 99, 235, 0.2);
    }

    .btn-primary:disabled:hover {
        transform: none;
        box-shadow: 0 4px 14px rgba(37, 99, 235, 0.2);
    }

/* Información de credenciales */
.credentials-info {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    padding: 1rem;
    margin-top: 1rem;
    text-align: center;
}

    .credentials-info i {
        color: var(--primary-color);
        font-size: 1.2rem;
    }

    .credentials-info small {
        color: #475569;
        line-height: 1.6;
    }

    .credentials-info strong {
        color: #1e293b;
    }

/* Alertas personalizadas */
.alert {
    border-radius: 12px;
    border: none;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-danger {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

    .alert-danger i {
        color: var(--danger-color);
    }

/* Spinner de carga */
.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
}

.text-primary {
    color: var(--primary-color) !important;
}

/* Validación */
.text-danger {
    color: var(--danger-color) !important;
    font-weight: 500;
    margin-top: 0.25rem;
}

.validation-summary {
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

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

.login-logo {
    animation: pulse 2s infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: 1rem;
    }

    .login-card {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }

    .login-title {
        font-size: 2rem;
    }

    .login-logo {
        width: 60px;
        height: 60px;
        border-radius: 15px;
    }

        .login-logo i {
            font-size: 2rem;
        }

    .form-floating .form-control {
        height: 54px;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem 1rem;
    }

    .login-title {
        font-size: 1.75rem;
    }

    .credentials-info {
        padding: 1rem;
    }
}

/* Modo oscuro (opcional) */
@media (prefers-color-scheme: dark) {
    .login-card {
        background: rgba(17, 24, 39, 0.95);
        border: 1px solid rgba(75, 85, 99, 0.3);
    }

    .login-title {
        color: #f9fafb;
    }

    .login-subtitle {
        color: #9ca3af;
    }

    .form-floating .form-control {
        background: rgba(31, 41, 55, 0.8);
        border-color: #374151;
        color: #f9fafb;
    }

    .form-floating label {
        color: #9ca3af;
    }

    .credentials-info {
        background: linear-gradient(135deg, #1f2937, #111827);
        border-color: #374151;
    }
}

/* Efectos adicionales para mayor profesionalismo */
.login-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-hover), var(--primary-color));
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* Transiciones suaves para todos los elementos interactivos */
input, button, .form-check-input {
    transition: var(--transition);
}

    /* Mejora de accesibilidad */
    .form-control:focus,
    .btn:focus,
    .form-check-input:focus {
        outline: none;
    }

/* Estados de hover mejorados */
.form-floating .form-control:hover {
    border-color: #9ca3af;
}

.form-check-input:hover {
    border-color: var(--primary-color);
}