/* CreTech ERP - Premium Login Page Styles */

:root {
    --login-primary: #2563eb;
    --login-primary-hover: #1d4ed8;
    --login-primary-light: #3b82f6;
    --login-bg: #f8fafc;
    --login-card-bg: #ffffff;
    --login-text-primary: #1e293b;
    --login-text-secondary: #64748b;
    --login-text-muted: #94a3b8;
    --login-border: #e2e8f0;
    --login-border-focus: #2563eb;
    --login-error: #dc2626;
    --login-error-bg: #fef2f2;
    --login-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --login-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --login-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body.login-page {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--login-bg);
    color: var(--login-text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.login-container {
    width: 100%;
    max-width: 440px;
    margin: 0 auto;
}

.login-card {
    background: var(--login-card-bg);
    border-radius: 12px;
    box-shadow: var(--login-shadow-xl);
    padding: 48px 40px;
    width: 100%;
}

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

.login-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--login-primary) 0%, var(--login-primary-light) 100%);
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.login-logo i {
    font-size: 28px;
    color: #ffffff;
}

.login-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--login-text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-subtitle {
    font-size: 15px;
    color: var(--login-text-secondary);
    font-weight: 400;
}

.login-form {
    margin-top: 32px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--login-text-primary);
    margin-bottom: 8px;
    letter-spacing: 0.01em;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: inherit;
    color: var(--login-text-primary);
    background: var(--login-card-bg);
    border: 1.5px solid var(--login-border);
    border-radius: 8px;
    transition: all 0.2s ease;
    outline: none;
}

.form-control::placeholder {
    color: var(--login-text-muted);
}

.form-control:hover {
    border-color: var(--login-text-muted);
}

.form-control:focus {
    border-color: var(--login-border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control:disabled {
    background: #f1f5f9;
    cursor: not-allowed;
    opacity: 0.6;
}

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    font-size: 14px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--login-primary);
}

.checkbox-group label {
    color: var(--login-text-secondary);
    cursor: pointer;
    user-select: none;
}

.forgot-link {
    color: var(--login-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.forgot-link:hover {
    color: var(--login-primary-hover);
    text-decoration: underline;
}

.forgot-link:focus {
    outline: 2px solid var(--login-border-focus);
    outline-offset: 2px;
    border-radius: 4px;
}

.btn-login {
    width: 100%;
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    color: #ffffff;
    background: var(--login-primary);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-login:hover:not(:disabled) {
    background: var(--login-primary-hover);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transform: translateY(-1px);
}

.btn-login:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.btn-login:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

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

.btn-login i {
    font-size: 16px;
}

.btn-login.loading {
    position: relative;
    color: transparent;
}

.btn-login.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

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

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideDown 0.3s ease;
}

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

.alert-error {
    background: var(--login-error-bg);
    color: var(--login-error);
    border: 1px solid #fecaca;
}

.alert-error i {
    font-size: 16px;
}

.login-footer {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--login-border);
    text-align: center;
}

.login-footer p {
    font-size: 13px;
    color: var(--login-text-muted);
    line-height: 1.6;
}

.login-footer strong {
    color: var(--login-text-secondary);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 480px) {
    .login-card {
        padding: 32px 24px;
    }
    
    .login-title {
        font-size: 24px;
    }
    
    .login-subtitle {
        font-size: 14px;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

/* Dark mode support (optional, for future enhancement) */
@media (prefers-color-scheme: dark) {
    /* Can be implemented later if needed */
}

/* Accessibility - High contrast mode */
@media (prefers-contrast: high) {
    .form-control {
        border-width: 2px;
    }
    
    .btn-login {
        border: 2px solid var(--login-primary);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}