/* ============================================================
   WatZap Clean — Patterns
   Spec: docs/superpowers/specs/2026-05-25-clean-design-system-design.md §7
   Reference: docs/design-system-clean/03-patterns.md
   Requires: design-tokens-clean.css, components-clean.css
   ------------------------------------------------------------
   Composite patterns with their own CSS classes:
   Page Header, List Item, Empty State, Loading (skeleton/spinner/progress),
   Wizard, Toast, Filter Bar, Pagination.

   Patterns NOT in this file (they reuse existing component CSS):
   - Form Layout (uses .wzc-field, .wzc-input, .wzc-btn — see components)
   - Error State (uses .wzc-alert and .wzc-empty)
   - Confirm Dialog (uses .wzc-modal and .wzc-btn)
   ============================================================ */

/* ------------------------------------------------------------
   Page Header (wzc-page-header)
   ------------------------------------------------------------ */
.wzc-page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border-default);
    margin-bottom: var(--space-6);
}
.wzc-page-header__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-fg-strong);
    font-family: var(--font-family-base);
}
.wzc-page-header__desc {
    font-size: var(--font-size-base);
    color: var(--color-fg-muted);
    margin-top: var(--space-1);
    font-family: var(--font-family-base);
}
.wzc-page-header__actions { display: flex; gap: var(--space-2); }

/* ------------------------------------------------------------
   List Item (wzc-list, wzc-list-item)
   ------------------------------------------------------------ */
.wzc-list { display: flex; flex-direction: column; }
.wzc-list-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border-subtle);
    cursor: pointer;
    transition: background var(--duration-fast) var(--easing-standard);
}
.wzc-list-item:last-child { border-bottom: 0; }
.wzc-list-item:hover { background: var(--color-bg-subtle); }
.wzc-list-item__body { flex: 1; min-width: 0; }
.wzc-list-item__title {
    font-weight: var(--font-weight-semibold);
    color: var(--color-fg-strong);
    font-family: var(--font-family-base);
}
.wzc-list-item__subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-fg-muted);
    font-family: var(--font-family-base);
}

/* ------------------------------------------------------------
   Empty State (wzc-empty)
   ------------------------------------------------------------ */
.wzc-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-10);
    gap: var(--space-3);
    font-family: var(--font-family-base);
}
.wzc-empty__icon { font-size: 40px; color: var(--color-fg-subtle); }
.wzc-empty__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-fg-strong);
}
.wzc-empty__desc {
    font-size: var(--font-size-base);
    color: var(--color-fg-muted);
    max-width: 360px;
}

/* ------------------------------------------------------------
   Loading — Skeleton, Spinner, Progress
   ------------------------------------------------------------ */
.wzc-skeleton {
    background: linear-gradient(90deg,
        var(--color-bg-muted) 25%,
        var(--color-bg-emphasis) 50%,
        var(--color-bg-muted) 75%);
    background-size: 200% 100%;
    animation: wzc-skeleton-shimmer 1.4s ease-in-out infinite;
    border-radius: var(--radius-sm);
}
@keyframes wzc-skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.wzc-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border-default);
    border-top-color: var(--color-brand-500);
    border-radius: 50%;
    animation: wzc-spinner-spin 0.8s linear infinite;
}
@keyframes wzc-spinner-spin { to { transform: rotate(360deg); } }

.wzc-progress {
    height: 6px;
    background: var(--color-bg-emphasis);
    border-radius: var(--radius-pill);
    overflow: hidden;
}
.wzc-progress__bar {
    height: 100%;
    background: var(--color-brand-500);
    border-radius: var(--radius-pill);
    transition: width var(--duration-normal) var(--easing-standard);
}

/* ------------------------------------------------------------
   Wizard (wzc-wizard)
   ------------------------------------------------------------ */
.wzc-wizard {
    display: grid;
    grid-template-columns: 200px 1fr;
    min-height: 320px;
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.wzc-wizard__steps {
    padding: var(--space-5);
    background: var(--color-bg-subtle);
    border-right: 1px solid var(--color-border-default);
}
.wzc-wizard__step {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
}
.wzc-wizard__step-circle {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--color-border-strong);
    background: var(--color-bg-surface);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-fg-muted);
    font-size: var(--font-size-xs);
}
.wzc-wizard__step-label {
    font-size: var(--font-size-sm);
    color: var(--color-fg-muted);
    font-family: var(--font-family-base);
}
.wzc-wizard__step.is-active .wzc-wizard__step-circle {
    border-color: var(--color-brand-500);
    background: var(--color-brand-500);
    color: var(--color-fg-on-brand);
    box-shadow: 0 0 0 3px rgba(220, 35, 96, 0.15);
}
.wzc-wizard__step.is-active .wzc-wizard__step-label {
    color: var(--color-brand-600);
    font-weight: var(--font-weight-semibold);
}
.wzc-wizard__step.is-done .wzc-wizard__step-circle {
    background: var(--color-brand-50);
    border-color: var(--color-brand-500);
    color: var(--color-brand-500);
}
.wzc-wizard__step.is-done .wzc-wizard__step-label { color: var(--color-fg-default); }
.wzc-wizard__content { padding: var(--space-6); }
.wzc-wizard__step-divider {
    width: 2px;
    height: 12px;
    background: var(--color-border-default);
    margin-left: 11px;
}
.wzc-wizard__step.is-done + .wzc-wizard__step-divider { background: var(--color-brand-500); }

/* ------------------------------------------------------------
   Toast (wzc-toast, wzc-toast-container)
   ------------------------------------------------------------ */
.wzc-toast-container {
    position: fixed;
    top: var(--space-5);
    right: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    z-index: var(--z-toast);
}
.wzc-toast {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 280px;
    max-width: 360px;
    border-left: 3px solid var(--color-info-500);
    opacity: 0;
    transform: translateX(20px);
    transition: opacity var(--duration-normal) var(--easing-standard),
                transform var(--duration-normal) var(--easing-standard);
    font-family: var(--font-family-base);
}
.wzc-toast.is-show { opacity: 1; transform: translateX(0); }
.wzc-toast--info { border-left-color: var(--color-info-500); }
.wzc-toast--success { border-left-color: var(--color-success-500); }
.wzc-toast--warning { border-left-color: var(--color-warning-500); }
.wzc-toast--danger { border-left-color: var(--color-danger-500); }
.wzc-toast__icon { padding-top: 2px; }
.wzc-toast--info .wzc-toast__icon { color: var(--color-info-500); }
.wzc-toast--success .wzc-toast__icon { color: var(--color-success-500); }
.wzc-toast--warning .wzc-toast__icon { color: var(--color-warning-500); }
.wzc-toast--danger .wzc-toast__icon { color: var(--color-danger-500); }
.wzc-toast__body { flex: 1; }
.wzc-toast__title { font-weight: var(--font-weight-semibold); }
.wzc-toast__desc { font-size: var(--font-size-sm); color: var(--color-fg-muted); }

/* ------------------------------------------------------------
   Filter Bar (wzc-filter-bar)
   ------------------------------------------------------------ */
.wzc-filter-bar {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    padding: var(--space-3);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
}
.wzc-filter-label {
    font-size: var(--font-size-sm);
    color: var(--color-fg-muted);
    margin-right: var(--space-1);
    font-family: var(--font-family-base);
}
.wzc-filter-chip {
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-pill);
    background: var(--color-bg-surface);
    color: var(--color-fg-default);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--duration-fast) var(--easing-standard);
    font-family: var(--font-family-base);
}
.wzc-filter-chip:hover { background: var(--color-bg-subtle); }
.wzc-filter-chip.is-active {
    background: var(--color-brand-50);
    border-color: var(--color-brand-500);
    color: var(--color-brand-600);
}

/* ------------------------------------------------------------
   Pagination (wzc-pagination)
   ------------------------------------------------------------ */
.wzc-pagination { display: inline-flex; gap: var(--space-1); }
.wzc-pagination__btn {
    min-width: 32px;
    height: 32px;
    padding: 0 var(--space-2);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    background: var(--color-bg-surface);
    color: var(--color-fg-default);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--duration-fast) var(--easing-standard);
    font-family: var(--font-family-base);
}
.wzc-pagination__btn:hover:not([disabled]) {
    background: var(--color-bg-subtle);
    border-color: var(--color-border-strong);
}
.wzc-pagination__btn.is-active {
    background: var(--color-brand-500);
    border-color: var(--color-brand-500);
    color: var(--color-fg-on-brand);
}
.wzc-pagination__btn[disabled] {
    color: var(--color-fg-subtle);
    cursor: not-allowed;
}

/* ------------------------------------------------------------
   Stack list (wzc-stacklist) — mobile card-list replacement for
   tables (design-system-v2.md). Page CSS decides when it shows.
   ------------------------------------------------------------ */
.wzc-stacklist {
    display: flex;
    flex-direction: column;
}
.wzc-stacklist__item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-1);
    border-top: 1px solid var(--color-border-subtle);
}
.wzc-stacklist__item:first-child { border-top: none; }
.wzc-stacklist__lead {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
    min-width: 44px;
    min-height: 44px;
    cursor: pointer;
}
.wzc-stacklist__body {
    flex: 1;
    min-width: 0;
    align-self: center;
}
.wzc-stacklist__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-fg-strong);
    line-height: var(--line-height-tight);
    overflow-wrap: anywhere;
}
.wzc-stacklist__meta {
    margin-top: var(--space-1);
    color: var(--color-fg-muted);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
}
.wzc-stacklist__aside {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
    min-width: 44px;
    min-height: 44px;
}

/* ------------------------------------------------------------
   Chip (wzc-chip) — compact pill control; --sort = sort selector
   ------------------------------------------------------------ */
.wzc-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-pill);
    background: var(--color-bg-surface);
    color: var(--color-fg-default);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    font-family: var(--font-family-base);
    cursor: pointer;
    transition: all var(--duration-fast) var(--easing-standard);
}
.wzc-chip:hover { background: var(--color-bg-subtle); }
.wzc-chip--sort .wzc-chip__icon {
    font-size: var(--font-size-xs);
    color: var(--color-fg-muted);
}
@media (max-width: 768px) {
    /* Touch target 44px tanpa membesarkan visual: chip tetap ramping,
       area tap diperluas lewat hit-area transparan */
    .wzc-chip {
        position: relative;
        min-height: 32px;
    }
    .wzc-chip::before {
        content: "";
        position: absolute;
        inset: -6px;
    }
}

/* ------------------------------------------------------------
   Select bar (wzc-selectbar) — sticky bulk-action bar, shown
   only while >=1 item is selected (progressive disclosure)
   ------------------------------------------------------------ */
.wzc-selectbar {
    position: sticky;
    bottom: var(--space-3);
    z-index: var(--z-sticky);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-1) var(--space-2) var(--space-1) var(--space-4);
    background: var(--color-bg-surface);
    color: var(--color-fg-strong);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.wzc-selectbar[hidden] { display: none; }
.wzc-selectbar__count {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}
.wzc-selectbar__actions {
    display: inline-flex;
    gap: var(--space-1);
}
.wzc-selectbar__btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    min-height: 44px;
    padding: 0 var(--space-3);
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: inherit;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-family-base);
    cursor: pointer;
    transition: background var(--duration-fast) var(--easing-standard);
}
.wzc-selectbar__btn:hover { background: var(--color-bg-subtle); }
.wzc-selectbar__btn--danger { color: var(--color-danger-500); }