/* ─── App shell + composite component styles ─────────────────
   Built on tokens.css. */

.ss-app {
  display: flex;
  flex-direction: column;
  background: var(--bg-app);
  color: var(--fg);
  font-family: var(--ui);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
  position: relative;
}

/* ── Top bar ───────────────────────────────────────────────── */
.ss-topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 44px;
  padding: 0 16px;
  background: linear-gradient(180deg, #16181b 0%, #131517 100%);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--inset-panel);
  flex: 0 0 44px;
}
.ss-topbar-left { display: flex; align-items: center; gap: 10px; }
.ss-wordmark {
  font-size: 11px; letter-spacing: 0.22em;
  color: var(--fg); font-weight: 600;
}
.ss-build {
  font-size: 10px; color: var(--fg-dim);
  border-left: 1px solid var(--line); padding-left: 10px; margin-left: 2px;
  letter-spacing: 0.06em;
}
.ss-topbar-center { display: flex; justify-content: center; }
.ss-topbar-right {
  display: flex; align-items: center; gap: 10px; justify-content: flex-end;
}

.ss-proj {
  display: inline-flex; align-items: center; gap: 8px;
  height: 28px; padding: 0 10px 0 9px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: var(--r-btn);
  color: var(--fg); cursor: pointer;
  font: 500 12px/1 var(--ui);
  letter-spacing: 0.01em;
  box-shadow: var(--inset-input);
}
.ss-proj:hover { border-color: var(--line-strong); }
.ss-proj-name { font-weight: 600; }
.ss-proj-meta { font-size: 11px; color: var(--fg-dim); }
.ss-proj svg:last-child { color: var(--fg-mute); margin-left: 2px; }

.ss-utility {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0 10px; height: 24px;
  border: 1px solid var(--line); border-radius: var(--r-btn);
  background: var(--bg-deep);
}
.ss-sync-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--teal); box-shadow: 0 0 6px var(--teal-glow);
}
.ss-sync-tc { font-size: 11px; color: var(--fg); letter-spacing: 0.02em; }

.ss-iconbtn {
  position: relative;
  width: 28px; height: 28px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--fg-mute);
  border-radius: var(--r-btn);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}
.ss-iconbtn:hover { background: var(--bg-row-hover); color: var(--fg); }
.ss-bell-badge {
  position: absolute; top: 3px; right: 2px;
}

.ss-avatar {
  width: 26px; height: 26px;
  border: 1px solid var(--line-strong);
}

/* ── Tab bar ───────────────────────────────────────────────── */
.ss-tabs {
  display: flex;
  align-items: stretch;
  height: 36px;
  background: var(--bg-app);
  border-bottom: 1px solid var(--line);
  padding: 0 12px;
  flex: 0 0 36px;
}
.ss-tab {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 0 14px;
  font: 500 12px/1 var(--ui);
  letter-spacing: 0.02em;
  color: var(--fg-mute);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.ss-tab:hover { color: var(--fg); }
.ss-tab.active { color: var(--fg-strong); border-bottom-color: var(--teal); }
.ss-tab-icon { display: inline-flex; opacity: 0.85; }
.ss-tab.active .ss-tab-icon { opacity: 1; color: var(--teal); }
.ss-tab-count {
  font-size: 10px; color: var(--fg-dim);
  padding: 0 5px; height: 14px; min-width: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-sub); border: 1px solid var(--line);
  border-radius: 7px; margin-left: 1px;
  letter-spacing: 0.02em;
}
.ss-tab.active .ss-tab-count {
  color: var(--teal); border-color: var(--teal-line); background: var(--teal-bg);
}
.ss-tab-spacer { flex: 1; }
.ss-tab-tools {
  display: inline-flex; align-items: center; gap: 10px;
  padding-right: 4px;
}
.ss-reel { font-size: 11px; color: var(--fg); letter-spacing: 0.02em; }

/* ── Content area ──────────────────────────────────────────── */
.ss-content {
  flex: 1 1 auto;
  display: flex; flex-direction: column;
  min-height: 0;
  background: var(--bg-app);
}

.ss-content-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-soft);
  gap: 16px;
}
.ss-filters { display: flex; gap: 6px; flex-wrap: wrap; }
.ss-toolbar-right { display: flex; align-items: center; gap: 8px; }

.ss-list-header {
  display: grid;
  grid-template-columns: 100px 60px 1fr 88px 80px;
  gap: 16px;
  padding: 8px 16px;
  font: 500 10px/1 var(--ui);
  letter-spacing: 0.16em;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-deep);
}
.ss-list-header > div { display: flex; align-items: center; }

.ss-list { flex: 1; overflow: hidden; }

.ss-row {
  position: relative;
  display: grid;
  grid-template-columns: 100px 60px 1fr auto 88px 80px;
  gap: 16px;
  align-items: center;
  padding: 14px 16px 14px 18px;
  background: var(--bg-row);
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--t-fast);
}
.ss-row.hover { background: var(--bg-row-hover); }
.ss-row.sel   { background: var(--bg-row-sel); }
.ss-row.sel::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: var(--teal);
}
.ss-row.sel .nt-catbar { left: 2px; }

.ss-row-tc {
  font-size: 12px; color: var(--fg); letter-spacing: 0.02em;
}
.ss-row-body { min-width: 0; }
.ss-row-title {
  font: 500 13px/1.3 var(--ui);
  color: var(--fg-strong);
  letter-spacing: -0.005em;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.ss-row-sub {
  font-size: 11px; color: var(--fg-dim); margin-top: 4px;
  letter-spacing: 0.01em;
}
.ss-row-asg { display: inline-flex; gap: -4px; }
.ss-row-asg .nt-asg + .nt-asg { margin-left: -6px; }
.ss-row-rail {
  position: absolute; right: 0; top: 4px; bottom: 4px; width: 2px;
  background: linear-gradient(180deg, transparent, var(--teal-line), transparent);
  opacity: 0; transition: opacity var(--t-fast);
}
.ss-row.hover .ss-row-rail,
.ss-row.sel .ss-row-rail { opacity: 1; }

/* ── Status bar (bottom of content) ───────────────────────── */
.ss-statusbar {
  display: flex; align-items: center; gap: 14px;
  padding: 0 16px;
  height: 28px;
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  font: 500 11px/1 var(--ui);
  color: var(--fg-mute);
  flex: 0 0 28px;
}
.ss-status-sep {
  width: 1px; height: 12px; background: var(--line);
}
.ss-status-meta { color: var(--fg-mute); }
.ss-status-meta .nt-mono { color: var(--fg); letter-spacing: 0.02em; }
.ss-status-faces { display: inline-flex; }
.ss-status-faces .nt-asg { width: 18px; height: 18px; font-size: 9px; }
.ss-status-faces .nt-asg + .nt-asg { margin-left: -5px; }

/* ── Mobile shell variants ────────────────────────────────── */
.ss-app.mobile { font-size: 13px; }

.ss-app.mobile .ss-topbar {
  grid-template-columns: auto 1fr auto;
  height: 48px;
  padding: 0 12px;
}
.ss-app.mobile .ss-topbar-center { justify-content: center; }
.ss-app.mobile .ss-topbar .ss-build,
.ss-app.mobile .ss-topbar .ss-wordmark,
.ss-app.mobile .ss-topbar .ss-utility,
.ss-app.mobile .ss-topbar .ss-iconbtn:not(.keep) { display: none; }
.ss-app.mobile .ss-proj { padding: 0 8px; height: 30px; max-width: 220px; }
.ss-app.mobile .ss-proj-name {
  max-width: 130px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.ss-mobile-tc {
  display: flex; flex-direction: column; align-items: center;
  gap: 2px;
}
.ss-mobile-tc .nt-mono { font-size: 11px; color: var(--fg); }
.ss-mobile-tc .nt-label { font-size: 9px; }

/* mobile bottom nav */
.ss-mobnav {
  display: flex; align-items: stretch;
  height: 64px;
  background: linear-gradient(180deg, #16181b 0%, #101113 100%);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom, 0);
  flex: 0 0 64px;
}
.ss-mobnav-item {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px;
  color: var(--fg-dim);
  font: 500 10px/1 var(--ui);
  letter-spacing: 0.04em;
  cursor: pointer;
  border-top: 2px solid transparent;
  margin-top: -1px;
  padding-top: 2px;
}
.ss-mobnav-item.active { color: var(--teal); border-top-color: var(--teal); }
.ss-mobnav-item .ic { color: inherit; opacity: 0.9; }

/* mobile transport bar */
.ss-transport {
  display: flex; align-items: center; gap: 10px;
  padding: 0 14px;
  height: 56px;
  background: var(--bg-panel);
  border-top: 1px solid var(--line);
  flex: 0 0 56px;
}
.ss-transport-tc {
  flex: 1;
  display: flex; flex-direction: column; gap: 2px;
}
.ss-transport-tc .tc {
  font: 500 14px/1 var(--mono); letter-spacing: 0.02em; color: var(--fg-strong);
}
.ss-transport-tc .lb {
  font: 500 9px/1 var(--ui); letter-spacing: 0.16em;
  color: var(--fg-dim);
}
.ss-transport-btn {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--btn-grad); border: 1px solid var(--line);
  border-radius: var(--r-btn);
  color: var(--fg);
}
.ss-transport-btn.play {
  width: 42px; height: 42px;
  border-color: var(--teal-line); color: var(--teal);
  background: var(--teal-bg);
  box-shadow: 0 0 10px var(--teal-glow), inset 0 1px 0 rgba(255,255,255,0.04);
}

/* ── Mobile tabs (scrollable) ─────────────────────────────── */
.ss-mtabs {
  display: flex; gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  background: var(--bg-app);
  flex: 0 0 auto;
}
.ss-mtab {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px;
  font: 500 11px/1 var(--ui);
  letter-spacing: 0.04em;
  color: var(--fg-mute);
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--r-btn);
  white-space: nowrap;
}
.ss-mtab.active {
  color: var(--teal); background: var(--teal-bg); border-color: var(--teal-line);
}
.ss-mtab .ct {
  font: 500 10px/1 var(--mono); color: var(--fg-dim);
  border-left: 1px solid var(--line); padding-left: 6px; margin-left: 2px;
}
.ss-mtab.active .ct { color: var(--teal); border-color: var(--teal-line); }

.ss-mfilters {
  display: flex; gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-deep);
  overflow-x: auto;
}

.ss-mcontent {
  flex: 1 1 auto;
  overflow: hidden;
  background: var(--bg-app);
}
.ss-mrow {
  position: relative;
  padding: 12px 14px 12px 16px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-row);
}
.ss-mrow.sel { background: var(--bg-row-sel); }
.ss-mrow.sel::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--teal);
}
.ss-mrow.sel .nt-catbar { left: 2px; }
.ss-mrow-head {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 6px;
}
.ss-mrow-tc { font-size: 11px; color: var(--fg); }
.ss-mrow-title {
  font: 500 13px/1.35 var(--ui); color: var(--fg-strong);
  margin-bottom: 8px;
  overflow: hidden; text-overflow: ellipsis;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.ss-mrow-foot {
  display: flex; align-items: center; justify-content: space-between;
}
.ss-mrow-asg { display: inline-flex; }
.ss-mrow-asg .nt-asg { width: 18px; height: 18px; font-size: 9px; }
.ss-mrow-asg .nt-asg + .nt-asg { margin-left: -4px; }
.ss-mrow-meta {
  font: 500 10px/1 var(--mono); color: var(--fg-dim); letter-spacing: 0.04em;
}

/* ── Auth screens ─────────────────────────────────────────── */
.ss-auth-stage {
  width: 100%; height: 100%;
  background: var(--bg-deep);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.ss-auth-stage::before {
  /* Soft vignette to keep card centered without color */
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(53,197,199,0.04), transparent 50%),
    radial-gradient(ellipse at 50% 95%, rgba(0,0,0,0.6), transparent 60%);
  pointer-events: none;
}
.ss-auth-card {
  position: relative;
  width: 380px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--float);
  padding: 32px;
}
.ss-auth-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--teal-line), transparent);
}
.ss-auth-mark { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
.ss-auth-mark .wm {
  font: 600 11px/1 var(--ui); letter-spacing: 0.22em; color: var(--fg);
}
.ss-auth-title {
  font: 500 18px/1.2 var(--ui);
  letter-spacing: -0.01em;
  color: var(--fg-strong);
  margin: 0 0 6px;
}
.ss-auth-sub {
  font: 400 12px/1.4 var(--ui);
  color: var(--fg-mute);
  margin: 0 0 24px;
}
.ss-field { margin-bottom: 14px; }
.ss-field-label {
  display: block;
  font: 500 10px/1 var(--ui);
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 6px;
}
.ss-auth-row {
  display: flex; justify-content: space-between; align-items: center;
  margin: -6px 0 18px;
  font: 500 11px/1 var(--ui);
}
.ss-auth-row a { color: var(--fg-mute); text-decoration: none; letter-spacing: 0.04em; }
.ss-auth-row a:hover { color: var(--teal); }
.ss-auth-submit { width: 100%; justify-content: center; height: 36px; font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; }
.ss-auth-foot {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  text-align: center;
  font: 400 12px/1.4 var(--ui);
  color: var(--fg-mute);
}
.ss-auth-foot a { color: var(--fg); text-decoration: none; border-bottom: 1px solid var(--line-strong); padding-bottom: 1px; }
.ss-auth-foot a:hover { color: var(--teal); border-bottom-color: var(--teal-line); }
.ss-auth-meta {
  position: absolute; left: 0; right: 0; bottom: 18px;
  text-align: center;
  font: 500 10px/1 var(--ui); letter-spacing: 0.18em;
  color: var(--fg-faint);
}
.ss-field-hint {
  margin-top: 6px;
  font: 500 10px/1 var(--mono); letter-spacing: 0.04em;
  color: var(--fg-dim);
}
.ss-check {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--fg-mute); cursor: pointer;
  font: 500 11px/1 var(--ui);
}
.ss-check-box {
  width: 14px; height: 14px;
  border-radius: 2px;
  border: 1px solid var(--teal-line);
  background: var(--teal-bg);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--teal);
}

/* ── Project switcher ─────────────────────────────────────── */
.ss-switcher {
  width: 380px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--float);
  overflow: hidden;
}
.ss-switcher-head {
  padding: 12px 12px 10px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-sub);
}
.ss-switcher-title {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.ss-switcher-title .nt-label { color: var(--fg-mute); }
.ss-switcher-title .ct { font: 500 10px/1 var(--mono); color: var(--fg-dim); }
.ss-switcher-list { max-height: 360px; overflow: hidden; }
.ss-proj-row {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 14px 10px 16px;
  border-bottom: 1px solid var(--line-soft);
  cursor: pointer;
  transition: background var(--t-fast);
}
.ss-proj-row:hover { background: var(--bg-row-hover); }
.ss-proj-row.active { background: var(--bg-row-sel); }
.ss-proj-row.active::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 3px;
  background: var(--teal); border-radius: 0 1.5px 1.5px 0;
}
.ss-proj-row .name {
  font: 500 13px/1.2 var(--ui); color: var(--fg-strong);
  letter-spacing: -0.005em;
  display: flex; align-items: center; gap: 8px;
}
.ss-proj-row .meta {
  font: 400 11px/1 var(--ui); color: var(--fg-dim); margin-top: 4px;
  letter-spacing: 0.02em;
  display: flex; align-items: center; gap: 8px;
}
.ss-proj-row .meta .nt-mono { color: var(--fg-mute); }
.ss-proj-row .ct {
  font: 500 11px/1 var(--mono); color: var(--fg-mute);
  border: 1px solid var(--line); padding: 3px 6px;
  border-radius: 2px; background: var(--bg-deep);
}
.ss-proj-row .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--fg-faint);
}
.ss-proj-row.active .dot { background: var(--teal); box-shadow: 0 0 6px var(--teal-glow); }
.ss-switcher-foot {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--bg-deep);
  color: var(--teal);
  font: 500 12px/1 var(--ui);
  letter-spacing: 0.02em;
  cursor: pointer;
}
.ss-switcher-foot:hover { color: var(--fg-strong); }
.ss-switcher-foot .nt-kbd { margin-left: auto; }

/* ── Showcase sheet ───────────────────────────────────────── */
.ss-showcase {
  padding: 36px 40px;
  background: var(--bg-app);
  color: var(--fg);
  font-family: var(--ui);
}
.ss-showcase-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.ss-showcase-title {
  font: 500 22px/1 var(--ui); letter-spacing: -0.01em; color: var(--fg-strong);
}
.ss-showcase-title .sub {
  display: block; font: 500 10px/1 var(--ui);
  letter-spacing: 0.22em; color: var(--teal);
  margin-bottom: 8px;
}
.ss-showcase-meta {
  font: 500 10px/1.5 var(--mono); color: var(--fg-dim);
  text-align: right; letter-spacing: 0.04em;
}
.ss-sc-grid {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
}
.ss-sc-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  padding: 18px 18px 20px;
  box-shadow: var(--inset-panel);
}
.ss-sc-card-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}
.ss-sc-card-head .t {
  font: 500 12px/1 var(--ui); color: var(--fg-strong);
  letter-spacing: 0.04em;
}
.ss-sc-card-head .id {
  font: 500 10px/1 var(--mono); color: var(--fg-dim); letter-spacing: 0.06em;
}
.ss-sc-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.ss-sc-row:last-child { margin-bottom: 0; }
.ss-sc-row .lab {
  font: 500 9px/1 var(--ui); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--fg-dim);
  width: 64px;
}

.ss-sw-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); border-radius: var(--r-btn); overflow: hidden; }
.ss-sw {
  height: 56px; position: relative; display: flex; flex-direction: column; justify-content: flex-end; padding: 6px 8px;
  font: 500 10px/1 var(--mono); color: var(--fg-strong);
  border-right: 1px solid rgba(0,0,0,0.4);
}
.ss-sw:last-child { border-right: 0; }
.ss-sw .hex { color: var(--fg-mute); font-size: 9px; letter-spacing: 0.04em; }

/* category row */
.ss-cat-row {
  position: relative; display: flex; align-items: center; gap: 10px;
  padding: 10px 12px 10px 14px; background: var(--bg-row);
  border: 1px solid var(--line-soft); border-radius: 2px;
}
.ss-cat-row + .ss-cat-row { margin-top: 4px; }
.ss-cat-row .lbl { font: 500 12px/1 var(--ui); color: var(--fg-strong); }
.ss-cat-row .h { color: var(--fg-dim); font: 500 10px/1 var(--mono); margin-left: auto; }

/* hold-edge rail demo */
.ss-rail-demo {
  position: relative; height: 38px;
  background: var(--bg-row); border: 1px solid var(--line-soft);
  border-radius: 2px; padding: 0 14px;
  display: flex; align-items: center; gap: 10px;
  font: 500 12px/1 var(--ui); color: var(--fg);
}
.ss-rail-demo::after {
  content: ""; position: absolute; right: 0; top: 4px; bottom: 4px; width: 2px;
  background: linear-gradient(180deg, transparent, var(--teal-line), transparent);
}