/* MISSION 66 (W2-orders-chat) -- R920 S017 / S022 / S049 / S050 structure:
   sections as cards, key/value rows, the 6-step milestone stepper, one
   orange primary + outlined secondaries, the cancel-preview banner, the
   purchase-proof modal page, the segmented filter, the thread list and the
   notifications popover. Reuses site.css tokens (--accent, --surface,
   --border-color, --text-secondary, --radius-*); adds only the `pb-oc-*`
   layout classes. RTL-safe: logical properties only. */

.pb-oc-page { max-width: 1240px; margin: 0 auto; }
.pb-oc-subtitle { margin-top: -4px; margin-bottom: 16px; }
.pb-oc-head-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.pb-oc-h2 { font-size: 1.1rem; margin: 18px 0 8px; }
.pb-oc-h3 { font-size: 0.95rem; margin: 14px 0 6px; }

.pb-oc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.pb-oc-col { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
@media (max-width: 767px) { .pb-oc-grid { grid-template-columns: 1fr; } }

.pb-oc-card { padding: 18px 20px; }
.pb-oc-card > h2 { font-size: 1.15rem; margin: 0 0 12px; }
.pb-oc-card--confirm { border-color: var(--accent); }

.pb-oc-kv { display: grid; grid-template-columns: max-content 1fr; gap: 0 18px; margin: 0; }
.pb-oc-kv dt { color: var(--text-secondary); padding: 9px 0; border-bottom: 1px solid var(--border-color); font-weight: 500; }
.pb-oc-kv dd { margin: 0; padding: 9px 0; border-bottom: 1px solid var(--border-color); min-width: 0; overflow-wrap: anywhere; }
.pb-oc-kv dt:last-of-type, .pb-oc-kv dd:last-of-type { border-bottom: 0; }

/* Milestone stepper */
.pb-oc-steps { list-style: none; margin: 0; padding: 0; position: relative; }
.pb-oc-step { display: flex; gap: 14px; align-items: flex-start; padding: 0 0 22px; position: relative; }
.pb-oc-step::before { content: ""; position: absolute; inset-inline-start: 17px; top: 36px; bottom: -2px; width: 2px; background: var(--border-color); }
.pb-oc-step:last-child::before { display: none; }
.pb-oc-step-marker { flex: 0 0 36px; width: 36px; height: 36px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.9rem; background: var(--surface-2); color: var(--text-secondary); border: 2px solid var(--border-color); }
.pb-oc-step--reached .pb-oc-step-marker { background: var(--pb-success-surface); color: var(--pb-success-text); border-color: color-mix(in srgb, var(--pb-success-text) 40%, transparent); }
.pb-oc-step--current .pb-oc-step-marker { border-color: var(--accent); color: var(--pb-action-text); }
.pb-oc-step-title { font-weight: 700; }
.pb-oc-step--future .pb-oc-step-title { color: var(--text-secondary); font-weight: 600; }
.pb-oc-step-meta { font-size: 0.85rem; color: var(--text-secondary); }

/* Banner (cancel preview) */
.pb-oc-banner { background: var(--pb-info-surface); border: 1px solid color-mix(in srgb, var(--pb-info-text) 40%, transparent); color: var(--pb-info-text); border-radius: var(--radius-sm, 10px); padding: 14px 18px; margin-bottom: 16px; }
.pb-oc-banner strong { display: block; margin-bottom: 4px; }

/* Action bars */
.pb-oc-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-start; margin-top: 20px; }
.pb-oc-inline-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
@media (max-width: 767px) { .pb-oc-actions { flex-direction: column; } .pb-oc-actions .pb-btn { width: 100%; } }

/* Modal page (purchase proof) */
.pb-oc-modal-backdrop { display: flex; justify-content: center; padding: 24px 0; }
.pb-oc-modal { position: relative; max-width: 560px; width: 100%; padding: 24px 26px; }
.pb-oc-modal h1 { font-size: 1.3rem; margin: 0 0 8px; }
.pb-oc-modal-close { position: absolute; top: 14px; inset-inline-end: 14px; width: 40px; height: 40px; border: 1px solid var(--border-color); border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; color: var(--text-primary); font-size: 1.2rem; }

/* Segmented filter + search row */
.pb-oc-seg { display: inline-flex; gap: 6px; flex-wrap: wrap; margin: 6px 0 14px; }
.pb-oc-filter-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: flex-end; }
.pb-oc-field { display: flex; flex-direction: column; gap: 6px; flex: 1 1 260px; min-width: 0; }
.pb-oc-field label, .pb-oc-label { font-weight: 700; font-size: 0.9rem; }
.pb-oc-field input[type="search"] { width: 100%; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: var(--radius-sm, 10px); font-family: inherit; }
.pb-oc-form-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.pb-oc-form-row input[type="text"] { padding: 10px 12px; border: 1px solid var(--border-color); border-radius: var(--radius-sm, 10px); min-width: 180px; }

/* Tables (my orders) */
.pb-oc-table { width: 100%; }
.pb-oc-table-actions { display: flex; gap: 6px; flex-wrap: wrap; }
@media (max-width: 767px) {
    .pb-oc-table thead { display: none; }
    .pb-oc-table tr { display: block; border-bottom: 1px solid var(--border-color); padding: 8px 0; }
    .pb-oc-table td { display: block; border: 0; padding: 3px 0; }
}

/* Thread list */
.pb-oc-thread-list { display: flex; flex-direction: column; gap: 10px; }
.pb-oc-thread { display: block; padding: 12px 14px; border: 1px solid var(--border-color); border-radius: var(--radius-sm, 10px); background: var(--surface-2); color: inherit; text-decoration: none; }
.pb-oc-thread--unread { border-color: var(--accent); }
.pb-oc-thread-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.pb-oc-thread-preview { margin: 6px 0 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pb-oc-thread-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 6px; }

/* Thread page */
.pb-oc-chat-log { max-height: 420px; overflow-y: auto; }
.pb-oc-compose { display: flex; flex-direction: column; gap: 8px; }
.pb-oc-compose label { font-weight: 700; font-size: 0.9rem; }
.pb-oc-compose textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: var(--radius-sm, 10px); font-family: inherit; resize: vertical; }
.pb-oc-thread-tools { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-start; margin-top: 10px; }
.pb-oc-details > summary { cursor: pointer; list-style: none; }
.pb-oc-details > summary::-webkit-details-marker { display: none; }
.pb-oc-details form { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; max-width: 520px; }
.pb-oc-details textarea, .pb-oc-details select { padding: 8px 10px; border: 1px solid var(--border-color); border-radius: 8px; font-family: inherit; }

/* Notifications page */
.pb-oc-notif-list { display: flex; flex-direction: column; gap: 10px; }
.pb-oc-notif { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.pb-oc-notif--unread { border-color: var(--accent); }
.pb-oc-notif-body { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; min-width: 0; }
.pb-oc-notif-action { margin: 0; }
.pb-oc-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); flex: 0 0 auto; }

/* Bell popover */
.pb-oc-bell-wrap { position: relative; display: inline-block; }
.pb-oc-popover { position: absolute; top: calc(100% + 8px); inset-inline-end: 0; width: min(380px, 92vw); background: var(--surface); border: 1px solid var(--border-color); border-radius: 14px; box-shadow: 0 12px 32px rgba(0,0,0,0.14); padding: 14px 16px; z-index: 60; text-align: start; }
.pb-oc-popover-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.pb-oc-popover-head h2 { font-size: 1.05rem; margin: 0; }
.pb-oc-popover-list { list-style: none; margin: 8px 0; padding: 0; max-height: 320px; overflow-y: auto; }
.pb-oc-popover-row { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--border-color); }
.pb-oc-popover-row:last-child { border-bottom: 0; }
.pb-oc-popover-body { flex: 1 1 auto; min-width: 0; overflow-wrap: anywhere; }
.pb-oc-popover-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }