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

:root {
    --primary-color: #7c3aed;
    --secondary-color: #5b21b6;
    --accent-color: #8b5cf6;
    --light-color: #faf5ff;
    --dark-color: #1f2937;
    --text-light: #6b7280;
    --bg-main: #f0f2f5;
    --bg-card: #ffffff;
    --border-color: #e4e6eb;
    --error-color: #ef4444;
    --success-color: #10b981;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    color: var(--dark-color);
}

.login-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

/* Sección de Publicidad (desktop) */
.promo-section {
    flex: 1;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.95) 0%, rgba(91, 33, 182, 0.95) 100%);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px 30px;
    color: white;
    position: relative;
    overflow: hidden;
}

.promo-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 20s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.promo-content {
    max-width: 500px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.promo-logo {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.promo-logo i {
    font-size: 2.5rem;
    color: white;
}

.promo-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.2;
}

.promo-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.6;
}

.promo-features {
    margin-bottom: 50px;
}

.promo-feature {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-content p {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.6;
    margin: 0;
}

.promo-stats {
    display: flex;
    gap: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.promo-stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.85;
}

.login-container {
    width: 100%;
    max-width: 440px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .login-container {
        max-width: 100%;
    }
}

.login-box {
    background: var(--bg-card);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 40px 30px;
    width: 100%;
    max-width: 100%;
    animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 25px;
}

.logo-container {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

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

.login-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.login-form {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark-color);
}

.form-group label i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s;
    background: var(--bg-main);
    color: var(--dark-color);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.form-group input::placeholder {
    color: var(--text-light);
}

.password-input-wrapper {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.toggle-password:hover {
    color: var(--primary-color);
}

.toggle-password:focus {
    outline: none;
}

.error-message {
    display: block;
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 6px;
    min-height: 20px;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 10px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--dark-color);
    margin-bottom: 0;
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Checkbox de términos */
.terms-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--dark-color);
    margin-bottom: 0;
}

.terms-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--primary-color);
    cursor: pointer;
    flex-shrink: 0;
}

.terms-checkbox span {
    flex: 1;
}

.terms-checkbox a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
}

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

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

.login-btn.loading {
    pointer-events: none;
}

.login-btn.loading span {
    display: none;
}

.login-btn.loading::after {
    content: "";
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 25px 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider span {
    padding: 0 15px;
}

.register-section {
    text-align: center;
    padding-top: 20px;
}

.register-section p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.register-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

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

.login-footer {
    margin-top: 30px;
    text-align: center;
}

.login-footer p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.85rem;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--dark-color);
    color: white;
    padding: 14px 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 90%;
    font-size: 0.95rem;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--error-color);
}

.toast i {
    font-size: 1.1rem;
}

/* Desktop: Mostrar layout de 2 columnas */
@media (min-width: 1024px) {
    body {
        padding: 0;
        height: 100vh;
        overflow: hidden;
    }
    
    .promo-section {
        display: flex;
        flex: 0 0 50%;
        height: 100vh;
        overflow: hidden;
        padding: 40px 30px;
    }
    
    .promo-content {
        margin: auto;
        align-self: center;
        width: 100%;
    }
    
    .login-wrapper {
        align-items: stretch;
        height: 100vh;
    }
    
    .login-container {
        flex: 0 0 50%;
        max-width: none;
        padding: 20px;
        background: transparent;
        height: 100vh;
        overflow-y: auto;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .login-box {
        padding: 20px 18px;
        width: 100%;
        max-width: 420px;
        margin: auto;
    }
    
    .login-header {
        margin-bottom: 25px;
    }
    
    .logo-container {
        width: 60px;
        height: 60px;
        margin-bottom: 15px;
    }
    
    .logo-container i {
        font-size: 1.75rem;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .login-header p {
        font-size: 0.9rem;
    }
    
    .login-form {
        margin-bottom: 15px;
    }
    
    .form-group {
        margin-bottom: 10px;
    }
    
    .form-group label {
        margin-bottom: 4px;
        font-size: 0.8rem;
    }
    
    .form-group input[type="email"],
    .form-group input[type="password"],
    .form-group input[type="text"] {
        padding: 8px 11px;
        font-size: 0.9rem;
    }
    
    .register-section {
        padding-top: 8px;
    }
    
    .register-section p {
        font-size: 0.85rem;
    }
    
    .divider {
        margin: 8px 0;
    }
    
    .terms-checkbox {
        font-size: 0.75rem;
        gap: 6px;
        margin-bottom: 0;
        line-height: 1.3;
    }
    
    .terms-checkbox input[type="checkbox"] {
        width: 14px;
        height: 14px;
        margin-top: 1px;
    }
    
    .login-header {
        margin-bottom: 15px;
    }
    
    .logo-container {
        margin-bottom: 8px;
        width: 50px;
        height: 50px;
    }
    
    .logo-container i {
        font-size: 1.5rem;
    }
    
    .login-header h1 {
        font-size: 1.3rem;
        margin-bottom: 4px;
    }
    
    .login-header p {
        font-size: 0.8rem;
    }
    
    .login-btn {
        padding: 10px;
        font-size: 0.9rem;
    }
    
    .error-message {
        font-size: 0.7rem;
        margin-top: 2px;
        min-height: 12px;
    }
    
    .promo-content {
        max-width: 500px;
    }
    
    .promo-logo {
        width: 60px;
        height: 60px;
        margin-bottom: 20px;
    }
    
    .promo-logo i {
        font-size: 1.8rem;
    }
    
    .promo-content h2 {
        font-size: 1.75rem;
        margin-bottom: 12px;
    }
    
    .promo-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    
    .promo-features {
        margin-bottom: 25px;
    }
    
    .promo-feature {
        margin-bottom: 18px;
        gap: 15px;
    }
    
    .feature-icon {
        width: 40px;
        height: 40px;
    }
    
    .feature-icon i {
        font-size: 1.2rem;
    }
    
    .feature-content h3 {
        font-size: 1.1rem;
        margin-bottom: 5px;
    }
    
    .feature-content p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .promo-stats {
        gap: 20px;
        padding-top: 20px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.85rem;
    }
    
    .divider {
        margin: 18px 0;
    }
    
    .register-section {
        padding-top: 15px;
    }
    
    .register-section p {
        font-size: 0.9rem;
    }
    
    .login-footer {
        margin-top: 20px;
    }
    
    .login-footer p {
        font-size: 0.8rem;
    }
    
    .login-btn {
        padding: 12px;
        font-size: 0.95rem;
    }
    
    .form-group input[type="email"],
    .form-group input[type="password"] {
        padding: 11px 14px;
        font-size: 0.95rem;
    }
    
    .form-group label {
        font-size: 0.85rem;
        margin-bottom: 6px;
    }
    
    .form-options {
        font-size: 0.85rem;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: 15px;
        max-width: 100%;
    }

    .login-box {
        padding: 30px 25px;
        border-radius: 15px;
        width: 100%;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 12px;
        max-width: 100%;
    }

    .login-box {
        padding: 25px 20px;
        border-radius: 15px;
        width: 100%;
        max-width: 100%;
    }

    .logo-container {
        width: 60px;
        height: 60px;
    }

    .logo-container i {
        font-size: 1.5rem;
    }

    .login-header h1 {
        font-size: 1.5rem;
    }

    .login-header p {
        font-size: 0.9rem;
    }

    .form-group input[type="email"],
    .form-group input[type="password"],
    .form-group input[type="text"] {
        padding: 12px 14px;
        font-size: 0.95rem;
    }

    .login-btn {
        padding: 12px;
        font-size: 0.95rem;
    }

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

    .forgot-password {
        font-size: 0.85rem;
    }

    body {
        padding: 0;
    }
}

@media (max-width: 360px) {
    .login-container {
        padding: 10px;
    }

    .login-box {
        padding: 20px 18px;
    }

    .login-header h1 {
        font-size: 1.3rem;
    }

    .form-group label {
        font-size: 0.85rem;
    }

    .login-footer p {
        font-size: 0.8rem;
    }
}

/* Animación de entrada */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.login-container,
.promo-section {
    animation: fadeIn 0.5s ease-out;
}