:root {
            --beige-bg: #FAF8F4;
            --verde-principal: #2E7D32;
            --verde-hover: #1B5E20;
            --texto-gris: #2E2E2E;
            --gris-claro: #E0E0E0;
            --blanco: #FFFFFF;
            --sombra: 0 2px 8px rgba(0, 0, 0, 0.1);
            --border-radius: 12px;
            --glass-bg: rgba(255, 255, 255, 0.7);
            --glass-border: rgba(255, 255, 255, 0.3);
            --error-color: #d32f2f;
            --success-color: #388e3c;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Poppins', sans-serif;
            background-color: var(--beige-bg);
            color: var(--texto-gris);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }


        /* Contenedor principal */
        .login-container {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 40px 20px;
        }

        .login-card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--sombra);
            width: 100%;
            max-width: 450px;
            padding: 40px;
            animation: fadeIn 0.5s ease;
        }

        .login-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .login-header h1 {
            font-size: 32px;
            margin-bottom: 10px;
            color: var(--texto-gris);
        }

        .login-header p {
            color: #666;
            font-weight: 300;
        }

        /* Formulario */
        .form-group {
            margin-bottom: 20px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--texto-gris);
        }

        input[type="email"],
        input[type="password"] {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--gris-claro);
            border-radius: 8px;
            font-size: 16px;
            transition: all 0.3s ease;
            font-family: 'Poppins', sans-serif;
        }

        input:focus {
            outline: none;
            border-color: var(--verde-principal);
            background-color: rgba(46, 125, 50, 0.02);
        }

        input.error {
            border-color: var(--error-color);
            background-color: rgba(211, 47, 47, 0.02);
        }

        .error-message {
            color: var(--error-color);
            font-size: 14px;
            margin-top: 5px;
            display: none;
        }

        .error-message.show {
            display: block;
            animation: shake 0.3s ease;
        }

        .success-message {
            background: rgba(56, 142, 60, 0.1);
            color: var(--success-color);
            padding: 12px;
            border-radius: 8px;
            text-align: center;
            margin-bottom: 20px;
            display: none;
        }

        .success-message.show {
            display: block;
            animation: fadeIn 0.3s ease;
        }

        /* Recordar contraseña */
        .form-options {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
        }

        .remember-me {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .remember-me input[type="checkbox"] {
            width: 18px;
            height: 18px;
            cursor: pointer;
        }

        .remember-me label {
            margin-bottom: 0;
            font-size: 14px;
            cursor: pointer;
            color: #666;
        }

        .forgot-password {
            color: var(--verde-principal);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .forgot-password:hover {
            color: var(--verde-hover);
            text-decoration: underline;
        }

        /* Botones */
        .btn {
            width: 100%;
            padding: 14px;
            border-radius: 25px;
            font-weight: 500;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            font-family: 'Poppins', sans-serif;
        }

        .btn-primary {
            background: var(--verde-principal);
            color: white;
            margin-bottom: 15px;
        }

        .btn-primary:hover {
            background: var(--verde-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
        }

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

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

        .btn-primary.disabled {
            background: #9e9e9e;
            cursor: not-allowed;
            opacity: 0.7;
            pointer-events: none;
        }

        .btn-primary.disabled:hover {
            background: #9e9e9e;
            transform: none;
            box-shadow: none;
        }

        /* Divider */
        .divider {
            text-align: center;
            margin: 25px 0;
            position: relative;
        }

        .divider::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--gris-claro);
        }

        .divider span {
            background: white;
            padding: 0 15px;
            color: #666;
            font-size: 14px;
            position: relative;
        }

        /* Link de registro */
        .register-link {
            text-align: center;
            color: #666;
        }

        .register-link a {
            color: var(--verde-principal);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .register-link a:hover {
            color: var(--verde-hover);
            text-decoration: underline;
        }

        /* Loading spinner */
        .loading {
            display: none;
            width: 20px;
            height: 20px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top-color: white;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
            margin: 0 auto;
        }

        .btn-primary.loading-state .btn-text {
            display: none;
        }

        .btn-primary.loading-state .loading {
            display: block;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .login-card {
                padding: 30px 20px;
            }

            .login-header h1 {
                font-size: 28px;
            }

            .form-options {
                flex-direction: column;
                gap: 15px;
                align-items: flex-start;
            }
        }

        /* Animaciones */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-5px); }
            75% { transform: translateX(5px); }
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* Iconos */
        .icon-paw::before { content: "🐾"; }
        
        /* Tooltip para caps lock */
        .password-wrapper {
            position: relative;
        }

        .caps-lock-warning {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--error-color);
            color: white;
            padding: 5px 10px;
            border-radius: 5px;
            font-size: 12px;
            display: none;
            animation: fadeIn 0.3s ease;
        }

        .caps-lock-warning.show {
            display: block;
        }

        .caps-lock-warning::after {
            content: '';
            position: absolute;
            left: -5px;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            height: 0;
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
            border-right: 5px solid var(--error-color);
        }

/* Transiciones entre vistas */
.login-card {
    position: relative;
    overflow: hidden;
    min-height: 550px;
    transition: min-height 0.4s ease;
}

.form-view {
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    transform: translateX(50px);
    transition: opacity 0.4s ease, transform 0.4s ease, max-height 0.4s ease, visibility 0s 0.4s;
}

.form-view.active {
    opacity: 1;
    visibility: visible;
    max-height: 1000px;
    overflow: visible;
    transform: translateX(0);
    transition: opacity 0.4s ease, transform 0.4s ease, max-height 0.4s ease, visibility 0s 0s;
}

/* Input específico para código 2FA */
input[type="text"]#twoFactorCode {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gris-claro);
    border-radius: 8px;
    font-size: 2rem;
    text-align: center;
    letter-spacing: 0.5rem;
    padding-left: calc(16px + 0.5rem);
    font-family: 'Courier New', monospace;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary {
    background: transparent;
    color: var(--verde-principal);
    border: 2px solid var(--verde-principal);
    width: 100%;
    padding: 0.875rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--verde-principal);
    color: white;
}

.btn-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.alert-success {
    background-color: #e8f5e9;
    color: var(--success-color);
    border: 1px solid #a5d6a7;
}

.alert-error {
    background-color: #ffebee;
    color: var(--error-color);
    border: 1px solid #ef9a9a;
}