/* ==========================================
   ARCHIVO: assets/css/login.css
   Estilos modernos para la página de login
   ========================================== */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #06b6d4;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark: #1e293b;
    --dark-light: #334155;
    --light: #f1f5f9;
    --white: #ffffff;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1400px;
    width: 100%;
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px var(--shadow-lg);
    min-height: 700px;
}

/* ========== Panel de Información ========== */
.info-panel {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.info-panel::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); }
}

.info-content {
    position: relative;
    z-index: 1;
}

.logo-section {
    text-align: center;
    margin-bottom: 50px;
}

.logo-section i {
    color: var(--white);
    margin-bottom: 20px;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.2));
}

.logo-section h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.features h2 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    border-bottom: 2px solid rgba(255,255,255,0.3);
    padding-bottom: 15px;
}

.feature-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255,255,255,0.15);
    transform: translateX(10px);
}

.feature-item i {
    font-size: 2rem;
    color: var(--secondary-color);
    min-width: 40px;
}

.feature-item h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.feature-item p {
    font-size: 0.9rem;
    opacity: 0.9;
    line-height: 1.5;
}

.system-info {
    margin-top: 30px;
    padding: 20px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    text-align: center;
}

.system-info i {
    margin-right: 8px;
    color: var(--secondary-color);
}

/* ========== Panel de Login ========== */
.login-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 50px;
    background: var(--light);
}

.login-box {
    width: 100%;
    max-width: 450px;
    background: var(--white);
    padding: 50px 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
}

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

.login-header i {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.login-header h2 {
    font-size: 1.8rem;
    color: var(--dark);
    margin-bottom: 10px;
}

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

/* ========== Alertas ========== */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideDown 0.3s ease;
}

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

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning-color);
}

/* ========== Formulario ========== */
.login-form {
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    color: var(--dark);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.form-group label i {
    color: var(--primary-color);
    margin-right: 8px;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--light);
}

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

.password-input {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--dark-light);
    cursor: pointer;
    padding: 8px;
    transition: color 0.3s ease;
}

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

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 400;
    cursor: pointer;
}

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

.btn-login {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

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

.btn-login i {
    margin-right: 10px;
}

.login-footer {
    text-align: center;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid #e2e8f0;
}

.login-footer p {
    color: var(--dark-light);
    font-size: 0.9rem;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.login-footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .login-container {
        grid-template-columns: 1fr;
    }
    
    .info-panel {
        display: none;
    }
}

@media (max-width: 480px) {
    .login-panel {
        padding: 30px 20px;
    }
    
    .login-box {
        padding: 30px 25px;
    }
    
    .login-header h2 {
        font-size: 1.5rem;
    }
}