/**
 * RTEC - Estilos del Login
 */

.login-page {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    max-width: 1200px;
    min-height: 600px;
    background: white;
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin: 2rem;
}

/* ============================================
   LADO IZQUIERDO - BRANDING
   ============================================ */
.login-brand {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.login-brand::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 15s ease-in-out infinite;
}

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

.brand-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.brand-logo i {
    font-size: 4rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.brand-logo h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.login-brand h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.login-brand p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 3rem;
}

.brand-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.feature:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.feature i {
    font-size: 2rem;
}

.feature span {
    font-size: 0.95rem;
    text-align: center;
    font-weight: 500;
}

/* ============================================
   LADO DERECHO - FORMULARIO
   ============================================ */
.login-form-container {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-form {
    max-width: 400px;
    width: 100%;
    margin: 0 auto;
}

.login-form h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.alert {
    padding: 1rem 1.25rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-left: 4px solid var(--danger);
    color: var(--danger-dark);
}

.alert i {
    font-size: 1.25rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: 0.75rem;
    font-size: 1rem;
    transition: var(--transition);
    font-family: var(--font-primary);
}

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

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

.password-input {
    position: relative;
}

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

.toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: var(--transition);
}

.toggle-password:hover {
    color: var(--primary);
    background: var(--gray-100);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--gray-700);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.btn-primary {
    width: 100%;
    padding: 1rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.3);
}

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

.login-help {
    margin-top: 2rem;
    padding: 1.25rem;
    background: var(--gray-50);
    border-radius: 0.75rem;
    border: 1px solid var(--gray-200);
}

.login-help p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
}

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

.login-help li {
    padding: 0.5rem 0;
    font-size: 0.85rem;
    color: var(--gray-600);
}

.login-help strong {
    color: var(--primary);
    font-weight: 600;
}

.login-footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--gray-500);
    font-size: 0.85rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .login-container {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .login-brand {
        display: none;
    }
    
    .login-form-container {
        padding: 2rem;
    }
}

@media (max-width: 640px) {
    .login-page {
        padding: 1rem;
    }
    
    .login-container {
        margin: 0;
        border-radius: 1rem;
    }
    
    .login-form-container {
        padding: 1.5rem;
    }
    
    .login-form h2 {
        font-size: 1.5rem;
    }
}

/* ============================================
   ANIMACIONES ADICIONALES
   ============================================ */
.login-form {
    animation: fadeInUp 0.6s ease-out;
}

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

.brand-logo {
    animation: zoomIn 0.8s ease-out;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.feature {
    animation: fadeIn 0.6s ease-out backwards;
}

.feature:nth-child(1) { animation-delay: 0.2s; }
.feature:nth-child(2) { animation-delay: 0.3s; }
.feature:nth-child(3) { animation-delay: 0.4s; }
.feature:nth-child(4) { animation-delay: 0.5s; }

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}