/**
 * ============================================================================
 * ESTILOS - Página de Login
 * Archivo: auth/login.css
 * Propósito: Estilos para la página de autenticación
 * Tema: Gradiente púrpura Qompac UI (#667eea a #764ba2)
 * ============================================================================
 */

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

body {
    font-family: 'Heebo', -apple-system, BlinkMacSystemFont, 'Segoe UI', 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 {
    background: white;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    width: 100%;
    max-width: 420px;
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::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 3s ease-in-out infinite;
}

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

.login-header .logo {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-weight: 700;
    font-size: 1.75rem;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    position: relative;
    z-index: 1;
}

.login-header h1 {
    margin: 0;
    font-size: 1.875rem;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.login-header p {
    margin: 0.5rem 0 0 0;
    opacity: 0.95;
    font-size: 0.95rem;
    font-weight: 300;
    position: relative;
    z-index: 1;
}

.login-form {
    padding: 2.5rem 2rem;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
    font-size: 0.9375rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1.125rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f9fafb;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-control::placeholder {
    color: #9ca3af;
}

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin-right: 0.75rem;
    cursor: pointer;
    border: 2px solid #d1d5db;
    border-radius: 4px;
}

.form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

.form-check-label {
    font-size: 0.9375rem;
    color: #6b7280;
    cursor: pointer;
    user-select: none;
}

.btn-login {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

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

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

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

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.alert {
    padding: 0.875rem 1rem;
    border-radius: 12px;
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
    border: none;
}

.alert-danger {
    background-color: #fef2f2;
    color: #dc2626;
    border-left: 4px solid #dc2626;
}

.text-validation-summary {
    color: #dc2626;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    line-height: 1.5;
}

.field-validation-error {
    color: #dc2626;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: block;
}

.input-validation-error {
    border-color: #dc2626 !important;
    background-color: #fef2f2 !important;
}

.login-footer {
    text-align: center;
    padding: 1.5rem 2rem 2rem;
    color: #6b7280;
    font-size: 0.875rem;
    border-top: 1px solid #f3f4f6;
}

.login-footer p {
    margin: 0;
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        border-radius: 16px;
    }

    .login-header {
        padding: 2rem 1.5rem;
    }

    .login-form {
        padding: 2rem 1.5rem;
    }

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