/* ==========================================================================
   SafariBus Issue Tracker — component library
   ========================================================================== */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  height: 44px; padding: 0 var(--sp-5);
  border-radius: var(--r-md); border: 1px solid transparent;
  font-size: var(--text-base); font-weight: 600; cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn-sm { height: 36px; padding: 0 var(--sp-4); font-size: var(--text-sm); }
.btn-primary { background: var(--sb-green-500); color: #fff; }
.btn-primary:hover { background: var(--sb-green-600); }
.btn-secondary { background: #fff; color: var(--n-800); border-color: var(--n-200); }
.btn-secondary:hover { border-color: var(--n-300); background: var(--n-25); }
.btn-ghost { background: transparent; color: var(--n-700); }
.btn-ghost:hover { background: var(--n-100); }
.btn-danger { background: #fff; color: var(--error-500); border-color: var(--error-100); }
.btn-danger:hover { background: var(--error-100); }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-icon { width: 44px; padding: 0; flex-shrink: 0; }

/* ---------- Site header (public) ---------- */
.site-header {
  height: var(--header-h); display: flex; align-items: center;
  background: rgba(255,255,255,.78); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(26,26,23,.06); position: sticky; top: 0; z-index: 40;
}
.site-header .container { position: relative; display: flex; align-items: center; justify-content: space-between; width: 100%; }
.site-nav { display: flex; align-items: center; }
.site-nav__links {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  display: flex; align-items: center; gap: var(--sp-8);
}
.site-nav__links a { font-size: var(--text-sm); font-weight: 600; color: var(--n-600); }
.site-nav__links a:hover, .site-nav__links a.active { color: var(--n-900); }
.site-header__actions { display: flex; align-items: center; gap: var(--sp-3); }
.logo-mark { height: 55px; }
.menu-toggle { display: none; }

@media (max-width: 640px) {
  .site-nav__links { display: none; }
  .menu-toggle { display: inline-flex; }
}

/* ---------- Staff/portal header ---------- */
.portal-header {
  height: var(--header-h); background: var(--n-900); color: #fff;
  display: flex; align-items: center; position: sticky; top: 0; z-index: 40;
}
.portal-header .container { position: relative; display: flex; align-items: center; justify-content: space-between; width: 100%; }
.portal-badge {
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  background: rgba(255,255,255,.1); color: var(--n-200); padding: 3px 8px; border-radius: var(--r-sm);
}
.portal-nav { display: flex; align-items: center; }
.portal-nav__links {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  display: flex; align-items: center; gap: var(--sp-8);
}
.portal-nav__links a { font-size: var(--text-sm); font-weight: 600; color: var(--n-300); }
.portal-nav__links a:hover, .portal-nav__links a.active { color: #fff; }
.portal-user { display: flex; align-items: center; gap: var(--sp-3); font-size: var(--text-sm); color: var(--n-300); }
@media (max-width: 640px) {
  .portal-nav__links { display: none; }
  .portal-user span { display: none; }
}
.avatar {
  width: 32px; height: 32px; border-radius: var(--r-full); background: var(--sb-green-500);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: var(--text-xs); font-weight: 700;
}

/* ---------- Footer ---------- */
.site-footer { background: var(--n-900); color: var(--n-300); padding: var(--sp-16) 0 var(--sp-8); }
.footer-top { display: flex; justify-content: space-between; gap: var(--sp-12); flex-wrap: wrap; padding-bottom: var(--sp-10); }
.footer-brand p { color: var(--n-400); font-size: var(--text-sm); margin-top: var(--sp-3); max-width: 280px; }
.footer-cols { display: flex; gap: var(--sp-12); }
.footer-col h4 { color: #fff; font-size: var(--text-sm); margin-bottom: var(--sp-3); }
.footer-col a { display: block; color: var(--n-400); font-size: var(--text-sm); padding: var(--sp-1) 0; }
.footer-col a:hover { color: #fff; }
.footer-partners { border-top: 1px solid rgba(255,255,255,.1); padding-top: var(--sp-8); }
.footer-partners__label { font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--n-500); margin-bottom: var(--sp-5); }
.partner-strip { display: flex; align-items: center; gap: var(--sp-4); flex-wrap: wrap; }
.partner-strip img { height: 46px; width: auto; max-width: 150px; object-fit: contain; background: #fff; padding: 8px 14px; border-radius: var(--r-md); }
.footer-powered { border-top: 1px solid rgba(255,255,255,.1); margin-top: var(--sp-8); padding-top: var(--sp-6);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--sp-3); }
.footer-powered__by { display: flex; align-items: center; gap: var(--sp-2); font-size: var(--text-xs); color: var(--n-500); }
.footer-powered__by img { height: 26px; }
.footer-copy { font-size: var(--text-xs); color: var(--n-500); }

/* ---------- Status badge (colour + icon + label, never colour alone) ---------- */
.status-badge {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  height: 26px; padding: 0 var(--sp-3) 0 var(--sp-2);
  border-radius: var(--r-full); font-size: var(--text-xs); font-weight: 700;
}
.status-badge svg { width: 14px; height: 14px; flex-shrink: 0; }
.status-badge--new       { background: var(--status-new-bg);      color: var(--status-new); }
.status-badge--progress  { background: var(--status-progress-bg); color: var(--status-progress); }
.status-badge--waiting   { background: var(--status-waiting-bg);  color: var(--status-waiting); }
.status-badge--resolved  { background: var(--status-resolved-bg); color: var(--status-resolved); }
.status-badge--closed    { background: var(--status-closed-bg);   color: var(--status-closed); }

/* ---------- Priority tag ---------- */
.priority-tag { display: inline-flex; align-items: center; gap: 5px; font-size: var(--text-xs); font-weight: 700; }
.priority-tag::before { content: ''; width: 7px; height: 7px; border-radius: var(--r-full); background: currentColor; }
.priority-tag--low    { color: var(--priority-low); }
.priority-tag--normal { color: var(--priority-normal); }
.priority-tag--high   { color: var(--priority-high); }
.priority-tag--urgent { color: var(--priority-urgent); }
.priority-tag--unset  { color: var(--n-400); font-weight: 600; }

/* ---------- Route line (ticket progress, bus-route metaphor) ---------- */
.route-line { display: flex; align-items: flex-start; }
.route-stop { display: flex; flex-direction: column; align-items: center; flex: 1; position: relative; }
.route-stop__dot {
  width: 16px; height: 16px; border-radius: var(--r-full); background: var(--n-200);
  border: 3px solid var(--n-50); box-shadow: 0 0 0 1px var(--n-200); z-index: 1;
}
.route-stop__track { position: absolute; top: 7px; left: 50%; width: 100%; height: 2px; background: var(--n-200); z-index: 0; }
.route-stop:last-child .route-stop__track { display: none; }
.route-stop__label { margin-top: var(--sp-2); font-size: var(--text-xs); font-weight: 600; color: var(--n-400); text-align: center; }
.route-stop.is-done .route-stop__dot { background: var(--sb-green-500); box-shadow: 0 0 0 1px var(--sb-green-500); }
.route-stop.is-done .route-stop__track { background: var(--sb-green-500); }
.route-stop.is-done .route-stop__label { color: var(--n-700); }
.route-stop.is-current .route-stop__dot { background: #fff; border-color: var(--sb-green-500); box-shadow: 0 0 0 4px var(--sb-green-100); width: 18px; height: 18px; }
.route-stop.is-current .route-stop__label { color: var(--sb-green-700); font-weight: 700; }
.route-stop.is-waiting .route-stop__dot { background: var(--status-waiting); box-shadow: 0 0 0 1px var(--status-waiting); }
.route-stop.is-waiting .route-stop__label { color: var(--status-waiting); font-weight: 700; }

/* Vertical variant — mobile staff ticket detail */
.route-line--vertical { flex-direction: column; align-items: flex-start; }
.route-line--vertical .route-stop { flex-direction: row; align-items: flex-start; flex: 0 0 auto; padding-bottom: var(--sp-6); }
.route-line--vertical .route-stop__track { top: 16px; left: 7px; width: 2px; height: 100%; }
.route-line--vertical .route-stop__label { margin-top: 0; margin-left: var(--sp-3); text-align: left; }
.route-line--vertical .route-stop:last-child { padding-bottom: 0; }

/* ---------- Cards ---------- */
.card { background: #fff; border: 1px solid var(--n-100); border-radius: var(--r-lg); box-shadow: var(--shadow-sm); }
.card-pad { padding: var(--sp-6); }

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--sp-5); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
.label { font-size: var(--text-sm); font-weight: 600; color: var(--n-800); display: flex; gap: 4px; }
.label .optional { font-weight: 500; color: var(--n-400); }
.hint { font-size: var(--text-xs); color: var(--n-500); }
.input, .select, .textarea {
  height: 46px; padding: 0 var(--sp-4); border-radius: var(--r-md); border: 1.5px solid var(--n-200);
  font-size: var(--text-base); font-family: inherit; color: var(--n-900); background: #fff;
  width: 100%; transition: border-color .15s ease, box-shadow .15s ease;
}
.textarea { height: auto; min-height: 110px; padding: var(--sp-3) var(--sp-4); resize: vertical; }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--sb-green-500); box-shadow: 0 0 0 3px var(--sb-green-100); }
.input::placeholder, .textarea::placeholder { color: var(--n-400); }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2378776F' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.field.has-error .input, .field.has-error .select, .field.has-error .textarea { border-color: var(--error-500); background: var(--error-100); }
.field-error { display: flex; align-items: center; gap: 5px; font-size: var(--text-xs); font-weight: 600; color: var(--error-500); }
.field-error svg { width: 13px; height: 13px; flex-shrink: 0; }
.form-error-summary {
  display: flex; gap: var(--sp-3); align-items: flex-start; background: var(--error-100); border: 1px solid #f2c6c6;
  border-radius: var(--r-md); padding: var(--sp-4); margin-bottom: var(--sp-6);
}
.form-error-summary svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--error-500); margin-top: 1px; }
.form-error-summary strong { display: block; font-size: var(--text-sm); color: var(--n-900); margin-bottom: 2px; }
.form-error-summary ul { margin-top: 4px; }
.form-error-summary li { font-size: var(--text-sm); color: var(--n-700); }
.form-error-summary li a { color: var(--error-500); font-weight: 600; }
.radio-tile-group { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-3); }
.radio-tile {
  border: 1.5px solid var(--n-200); border-radius: var(--r-md); padding: var(--sp-3) var(--sp-3);
  display: flex; align-items: center; gap: var(--sp-2); cursor: pointer; font-size: var(--text-sm); font-weight: 600;
}
.radio-tile svg { width: 18px; height: 18px; color: var(--n-500); flex-shrink: 0; }
.radio-tile.is-selected { border-color: var(--sb-green-500); background: var(--sb-green-50); color: var(--sb-green-700); }
.radio-tile.is-selected svg { color: var(--sb-green-600); }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: var(--sp-6); border-bottom: 1px solid var(--n-100); }
.tab { padding: var(--sp-3) 0; font-size: var(--text-sm); font-weight: 600; color: var(--n-500); border-bottom: 2px solid transparent; cursor: pointer; display: flex; align-items: center; gap: 6px; }
.tab.active { color: var(--n-900); border-color: var(--sb-green-500); }
.tab .count { background: var(--n-100); color: var(--n-600); font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: var(--r-full); }
.tab.active .count { background: var(--sb-green-100); color: var(--sb-green-700); }

/* ---------- Table (desktop) → cards (mobile) ---------- */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  text-align: left; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: var(--n-500); padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--n-100);
}
.data-table td { padding: var(--sp-4); border-bottom: 1px solid var(--n-100); font-size: var(--text-sm); vertical-align: middle; }
.data-table tbody tr { cursor: pointer; transition: background .1s ease; }
.data-table tbody tr:hover { background: var(--n-25); }
.data-table .ref { font-weight: 700; color: var(--n-900); }
.data-table .subject { color: var(--n-800); font-weight: 500; }
.data-table .muted { color: var(--n-500); }
.next-up-tag {
  display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 700;
  color: var(--sb-green-700); background: var(--sb-green-50); border: 1px solid var(--sb-green-200);
  padding: 2px 8px; border-radius: var(--r-full); margin-left: var(--sp-2);
}

.ticket-card {
  display: none; background: #fff; border: 1px solid var(--n-100); border-radius: var(--r-md);
  padding: var(--sp-4); margin-bottom: var(--sp-3); min-height: 44px;
}
.ticket-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--sp-2); }
.ticket-card__ref { font-size: var(--text-xs); font-weight: 700; color: var(--n-500); }
.ticket-card__subject { font-size: var(--text-base); font-weight: 700; color: var(--n-900); margin-bottom: var(--sp-1); }
.ticket-card__meta { display: flex; flex-wrap: wrap; gap: var(--sp-1) var(--sp-3); font-size: var(--text-xs); color: var(--n-500); }
.table-card { overflow-x: auto; }

@media (max-width: 640px) {
  .data-table thead { display: none; }
  .data-table, .data-table tbody, .data-table tr, .data-table td { display: block; width: 100%; }
  .data-table tr { display: none; }
  .ticket-card { display: block; }
}

/* ---------- Search ---------- */
.search-bar { position: relative; }
.search-bar svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--n-400); pointer-events: none; }
.search-bar input {
  width: 100%; height: 44px; padding: 0 var(--sp-4) 0 40px; border-radius: var(--r-md);
  border: 1.5px solid var(--n-200); background: #fff; font-size: var(--text-base); font-family: inherit; color: var(--n-900);
}
.search-bar input:focus { outline: none; border-color: var(--sb-green-500); box-shadow: 0 0 0 3px var(--sb-green-100); }
.search-bar input::placeholder { color: var(--n-400); }

/* ---------- Pagination ---------- */
.pagination {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: var(--sp-3); padding: var(--sp-4); border-top: 1px solid var(--n-100);
}
.pagination__info { font-size: var(--text-sm); color: var(--n-500); }
.pagination__pages { display: flex; align-items: center; gap: 4px; }
.page-btn {
  min-width: 32px; height: 32px; padding: 0 8px; border-radius: var(--r-md); border: 1.5px solid transparent;
  background: none; font-size: var(--text-sm); font-weight: 600; color: var(--n-600); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 4px; font-family: inherit;
}
.page-btn:hover:not(:disabled) { background: var(--n-100); }
.page-btn.active { background: var(--sb-green-500); color: #fff; }
.page-btn:disabled { opacity: .4; cursor: not-allowed; }
.page-btn--nav { padding: 0 var(--sp-3); }
.page-ellipsis { min-width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; color: var(--n-400); font-size: var(--text-sm); }
@media (max-width: 640px) {
  .pagination { justify-content: center; text-align: center; }
}

/* ---------- Filters ---------- */
.filter-bar { display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap; }
.active-filters { display: flex; align-items: center; gap: var(--sp-2); flex-wrap: wrap; }
.clear-filters-btn { font-size: var(--text-xs); font-weight: 700; color: var(--n-500); background: none; border: none; cursor: pointer; padding: 0 var(--sp-2); }
.clear-filters-btn:hover { color: var(--n-800); text-decoration: underline; }
.filter-chip {
  display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 var(--sp-3);
  border: 1.5px solid var(--n-200); border-radius: var(--r-full); font-size: var(--text-sm); font-weight: 600;
  background: #fff; color: var(--n-700); cursor: pointer;
}
.filter-chip.active { border-color: var(--sb-green-500); background: var(--sb-green-50); color: var(--sb-green-700); }
.filter-chip--removable { background: var(--sb-green-50); border-color: var(--sb-green-200); color: var(--sb-green-700); }
.filter-chip--removable svg { width: 12px; height: 12px; }
.filter-mobile-btn { display: none; }

@media (max-width: 640px) {
  .filter-bar .filter-select-desktop { display: none; }
  .filter-mobile-btn { display: inline-flex; }
}

.bottom-sheet-overlay {
  display: none; position: fixed; inset: 0; background: rgba(26,26,23,.4); z-index: 90;
  align-items: flex-end; justify-content: center;
}
.bottom-sheet-overlay.open { display: flex; }
@media (max-width: 640px) {
  .bottom-sheet {
    background: #fff; width: 100%; max-width: 640px; border-radius: 18px 18px 0 0;
    padding: var(--sp-5) var(--sp-5) var(--sp-8); box-shadow: var(--shadow-lg);
  }
  .bottom-sheet__handle { width: 36px; height: 4px; background: var(--n-200); border-radius: var(--r-full); margin: 0 auto var(--sp-5); }
  .bottom-sheet__row { display: flex; align-items: center; justify-content: space-between; padding: var(--sp-3) 0; border-bottom: 1px solid var(--n-100); }
}

/* ---------- Conversation / thread ---------- */
.thread { display: flex; flex-direction: column; gap: var(--sp-4); }
.msg { display: flex; gap: var(--sp-3); max-width: 78%; }
.msg__avatar { width: 34px; height: 34px; border-radius: var(--r-full); flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #fff; }
.msg__bubble { background: var(--n-100); border-radius: var(--r-lg); padding: var(--sp-3) var(--sp-4); }
.msg__meta { font-size: 11px; color: var(--n-500); margin-bottom: 4px; display: flex; gap: 6px; align-items: center; }
.msg__text { font-size: var(--text-sm); color: var(--n-800); line-height: 1.5; }
.msg--staff .msg__avatar { background: var(--sb-green-500); }
.msg--operator { margin-left: auto; flex-direction: row-reverse; }
.msg--operator .msg__avatar { background: var(--info-500); }
.msg--operator .msg__bubble { background: var(--sb-green-50); }
.msg--internal .msg__bubble { background: var(--warning-100); border: 1px dashed #e0b467; }
.msg--internal .msg__avatar { background: var(--warning-500); }
.msg--internal .msg__meta { color: var(--warning-500); font-weight: 700; }

/* ---------- Reply box ---------- */
.reply-box { border: 1.5px solid var(--n-200); border-radius: var(--r-lg); background: #fff; }
.reply-box.mode-internal { border-color: #e0b467; background: var(--warning-100); }
.reply-box__mode-toggle { display: flex; gap: var(--sp-2); padding: var(--sp-3) var(--sp-3) 0; }
.mode-pill { font-size: var(--text-xs); font-weight: 700; padding: 5px 12px; border-radius: var(--r-full); cursor: pointer; border: 1.5px solid var(--n-200); color: var(--n-500); background: #fff; }
.mode-pill.active-reply { background: var(--sb-green-500); border-color: var(--sb-green-500); color: #fff; }
.mode-pill.active-internal { background: var(--warning-500); border-color: var(--warning-500); color: #fff; }
.reply-box textarea { width: 100%; border: none; resize: vertical; min-height: 84px; padding: var(--sp-3) var(--sp-4); font-family: inherit; font-size: var(--text-sm); background: transparent; }
.reply-box textarea:focus { outline: none; }
.reply-box__footer { display: flex; justify-content: space-between; align-items: center; padding: var(--sp-3) var(--sp-4); border-top: 1px solid rgba(0,0,0,.06); }

@media (max-width: 640px) {
  .reply-box--sticky { position: sticky; bottom: 0; z-index: 20; border-radius: var(--r-lg) var(--r-lg) 0 0; box-shadow: 0 -6px 20px rgba(26,26,23,.08); }
}

/* ---------- Toast ---------- */
.toast {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 100;
  display: flex; align-items: center; gap: var(--sp-2); background: var(--n-900); color: #fff;
  padding: var(--sp-3) var(--sp-5); border-radius: var(--r-md); box-shadow: var(--shadow-lg); font-size: var(--text-sm); font-weight: 600;
}
.toast svg { width: 18px; height: 18px; color: var(--sb-green-500); }

/* ---------- Empty / loading / error states ---------- */
.state-block { display: flex; flex-direction: column; align-items: center; text-align: center; padding: var(--sp-16) var(--sp-6); }
.state-block__icon { width: 56px; height: 56px; border-radius: var(--r-full); display: flex; align-items: center; justify-content: center; margin-bottom: var(--sp-5); }
.state-block--empty .state-block__icon { background: var(--n-100); color: var(--n-400); }
.state-block--error .state-block__icon { background: var(--error-100); color: var(--error-500); }
.state-block h3 { margin-bottom: var(--sp-2); }
.state-block p { color: var(--n-500); max-width: 360px; margin-bottom: var(--sp-6); font-size: var(--text-sm); }

.skeleton { background: linear-gradient(90deg, var(--n-100) 25%, var(--n-50) 37%, var(--n-100) 63%); background-size: 400% 100%; animation: skeleton-loading 1.4s ease infinite; border-radius: var(--r-sm); }
@keyframes skeleton-loading { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
.skeleton-row { display: flex; gap: var(--sp-4); align-items: center; padding: var(--sp-4); border-bottom: 1px solid var(--n-100); }

/* ---------- Misc ---------- */
.pill-link { display: inline-flex; align-items: center; gap: 6px; font-size: var(--text-sm); font-weight: 600; color: var(--sb-green-700); }
.divider { height: 1px; background: var(--n-100); border: none; margin: var(--sp-6) 0; }
.kv-row { display: flex; justify-content: space-between; padding: var(--sp-2) 0; font-size: var(--text-sm); }
.kv-row .k { color: var(--n-500); }
.kv-row .v { color: var(--n-900); font-weight: 600; }
.section-title { font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--n-500); margin-bottom: var(--sp-4); }