/**
 * NET-E Dashboard - UI Patterns
 * Based on Taiga-Helper Design System
 *
 * This file contains:
 * - Page Header
 * - Filter Bar
 * - Breadcrumb
 * - Loading Spinner
 * - Empty State
 * - Modal
 */

/* ============================================
   PAGE HEADER
   ============================================ */

.page-header {
    margin-bottom: var(--space-7);
}

.page-header__title {
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.page-header__subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
}

/* ============================================
   FILTER BAR
   ============================================ */

.filter-bar {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-5);
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.filter-bar__content {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    flex-wrap: wrap;
}

.filter-bar__label {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
}

.filter-bar__group {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-bar__group label {
    font-size: var(--font-size-md);
    color: var(--color-text-tertiary);
}

.filter-bar__info {
    margin-left: auto;
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
}

/* ============================================
   BREADCRUMB
   ============================================ */

.breadcrumb {
    margin-bottom: var(--space-5);
}

.breadcrumb__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-lg);
}

.breadcrumb__link:hover {
    text-decoration: underline;
}

/* ============================================
   LOADING SPINNER
   ============================================ */

.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border-default);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner--sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner--lg {
    width: 60px;
    height: 60px;
    border-width: 6px;
}

/* ============================================
   EMPTY STATE
   ============================================ */

.empty-state {
    text-align: center;
    padding: var(--space-10) var(--space-5);
    background: var(--color-bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

.empty-state__icon {
    font-size: 64px;
    margin-bottom: var(--space-5);
}

.empty-state__title {
    font-size: var(--font-size-3xl);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.empty-state__description {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
}

/* ============================================
   MODAL
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: var(--radius-3xl);
    padding: var(--space-8);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-modal);
    transform: translateY(-20px);
    transition: transform var(--transition-fast);
}

.modal-overlay.open .modal {
    transform: translateY(0);
}

.modal__header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.modal__icon {
    font-size: 32px;
}

.modal__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: 0;
}

.modal__body {
    margin-bottom: var(--space-6);
}

.modal__footer {
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
}