:root {
  --bg: #0d0d0d;
  --surface: #141414;
  --border: #262626;
  --text: #fafafa;
  --muted: #a1a1a1;
  --accent: #22d3ee;
}

[data-theme="light"] {
  --bg: #f5f5f5;
  --surface: #ffffff;
  --border: #e5e5e5;
  --text: #171717;
  --muted: #737373;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; }
.hub-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); flex-wrap: wrap; gap: 0.75rem; }
.hub-header h1 { margin: 0; font-size: 1.25rem; }
.hub-auth { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.btn-new-note { background: #22c55e; color: #000; border-color: #22c55e; font-weight: 600; }
.btn-new-note:hover { filter: brightness(1.08); border-color: #4ade80; }
.btn-secondary { background: var(--surface); }
.btn-primary { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 600; }
.muted { color: var(--muted); font-size: 0.9rem; }
.small { font-size: 0.8rem; }
.hidden { display: none !important; }
button { cursor: pointer; padding: 0.5rem 1rem; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); }
button:hover { border-color: var(--accent); }
.btn-provider, #btn-logout { background: var(--accent); color: #000; border-color: var(--accent); }
.login-buttons-wrap { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.oauth-setup { margin-top: 1.25rem; padding: 1rem 1.25rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); }
.oauth-setup code { font-size: 0.85rem; background: var(--bg); padding: 0.15rem 0.4rem; border-radius: 4px; }
.oauth-steps { margin: 0.75rem 0; padding-left: 1.25rem; }
.oauth-steps li { margin-bottom: 0.5rem; }
.panel { padding: 2rem 1.5rem; max-width: 640px; }
.search-section { display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); align-items: center; }
.search-section input[type="text"] { flex: 1; min-width: 200px; padding: 0.5rem 0.75rem; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); }
.search-section select { padding: 0.5rem 0.75rem; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); }
.search-section .filter-date-label { font-size: 0.8rem; color: var(--muted); margin-right: 0.2rem; }
.search-section input[type="date"] { padding: 0.5rem 0.75rem; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); }
.browse-toolbar { padding: 0.75rem 1.5rem; border-bottom: 1px solid var(--border); display: flex; flex-direction: column; gap: 0.75rem; }
.view-modes { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.toolbar-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-right: 0.25rem; }
.view-tab { padding: 0.35rem 0.85rem; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--muted); font-size: 0.875rem; }
.view-tab.active { color: var(--accent); border-color: var(--accent); background: rgba(34, 211, 238, 0.08); }
.filter-chips { display: flex; flex-wrap: wrap; gap: 0.35rem; align-items: center; }
.filter-chips .chip-btn { cursor: pointer; font-size: 0.75rem; padding: 0.2rem 0.5rem; border-radius: 999px; border: 1px solid var(--border); background: var(--bg); color: var(--muted); }
.filter-chips .chip-btn:hover, .filter-chips .chip-btn.active { border-color: var(--accent); color: var(--accent); }
.presets-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.presets-row input { padding: 0.35rem 0.6rem; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); width: 10rem; }
.presets-list { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.preset-pill { font-size: 0.75rem; padding: 0.2rem 0.55rem; border-radius: 999px; background: var(--border); color: var(--text); border: none; cursor: pointer; }
.preset-pill:hover { background: var(--accent); color: #000; }
.tabs { display: flex; gap: 0.25rem; padding: 0.75rem 1.5rem; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.tab { padding: 0.5rem 1rem; border: none; background: transparent; color: var(--muted); }
.tab.active { color: var(--accent); border-bottom: 2px solid var(--accent); margin-bottom: -1px; }
.tab-panel { padding: 1rem 1.5rem; }
.notes-view-panel { min-height: 200px; }
.list { display: flex; flex-direction: column; gap: 0.5rem; }
.list-item { padding: 0.75rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; }
.list-item:hover { border-color: var(--accent); }
.list-item .path,
.list-item .row-title { font-family: ui-monospace, monospace; font-size: 0.9rem; color: var(--accent); }
.list-item .row-chips { display: flex; flex-wrap: wrap; gap: 0.25rem; margin-top: 0.25rem; }
.chip { font-size: 0.7rem; padding: 0.15rem 0.4rem; border-radius: 4px; }
.chip-project { background: rgba(34, 211, 238, 0.2); color: var(--accent); }
.chip-tag { background: var(--border); color: var(--muted); }
.list-item .status { font-size: 0.8rem; color: var(--muted); margin-top: 0.25rem; }
.activity-item.status-approved .row-title { color: #22c55e; }
.activity-item.status-discarded .row-title { color: var(--muted); }
.activity-item.status-proposed .row-title { color: var(--accent); }
.total { margin-top: 0.75rem; }
.empty-state { padding: 2rem; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: 8px; }
.empty-state a { color: var(--accent); cursor: pointer; }
.btn-link { background: none; border: none; padding: 0; color: var(--accent); text-decoration: underline; cursor: pointer; font-size: inherit; }
.btn-link:hover { color: #67e8f9; }
/* Login first screen (Phase 11.1) */
.login-first-screen { margin: 0 auto; }
.login-hero { margin-bottom: 2rem; }
.login-title { font-size: 1.75rem; font-weight: 600; margin: 0 0 0.5rem; color: var(--text); letter-spacing: -0.02em; }
.login-title-equation { font-size: clamp(1.35rem, 4vw, 1.85rem); line-height: 1.35; max-width: 20em; margin-left: auto; margin-right: auto; }
.login-title-equation .login-title-main { display: block; font-size: 1.15em; }
.login-title-equation .login-title-eq { font-weight: 500; color: var(--muted); font-size: 0.85em; }
.login-tagline { font-size: 1.2rem; color: var(--text); margin: 0 0 0.5rem; font-weight: 500; }
.login-intent { font-size: 1rem; color: var(--muted); margin: 0; line-height: 1.5; max-width: 32em; }
.login-cta-block { margin-top: 0.5rem; }
.login-cta-label { margin: 0 0 0.75rem; color: var(--muted); font-size: 0.95rem; }
#app.login-screen .hub-header .btn-provider { padding: 0.6rem 1.25rem; font-size: 1rem; font-weight: 600; }
.login-how-to-wrap { margin-top: 1rem; }
.login-invite-banner { margin-bottom: 1rem; padding: 0.75rem 1rem; border-radius: 8px; background: rgba(34, 211, 238, 0.15); color: var(--accent); font-weight: 500; }
.invite-link-block { margin-top: 0.75rem; }
.invite-link-row { display: flex; gap: 0.5rem; align-items: center; margin-top: 0.35rem; }
.invite-link-input { flex: 1; padding: 0.5rem 0.75rem; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font-size: 0.9rem; }
.invite-row { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.btn-revoke-invite.small { font-size: 0.8rem; padding: 0.3rem 0.6rem; }
.hosted-note { margin-top: 0.75rem; }

/* Hub login ecosystem graphic (folder center, rings, connection icons) */
.hub-ecosystem { margin: 2.5rem auto 0; max-width: 320px; }
.hub-ecosystem-rings { position: relative; width: 320px; height: 320px; margin: 0 auto; }
.hub-ecosystem-svg { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hub-ring { transition: stroke 0.2s ease; }
.hub-ecosystem-center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  z-index: 2;
  padding: 1.25rem;
  min-width: 100px;
  min-height: 90px;
  box-sizing: border-box;
}
.hub-ecosystem-core-icon { font-size: 2.75rem; line-height: 1; filter: grayscale(0.15); }
.hub-ecosystem-core-label { color: var(--accent); font-weight: 600; font-size: 0.95rem; }
.hub-ecosystem-icon {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 36px;
  height: 36px;
  margin-left: -18px;
  margin-top: -18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  transform-origin: center center;
  z-index: 1;
  opacity: 0.9;
}
/* Inner ring (8 icons, r=90px — clear gap from center folder + label) */
.hub-ecosystem-icon-1 { transform: rotate(0deg) translate(0, -90px); }
.hub-ecosystem-icon-2 { transform: rotate(45deg) translate(0, -90px); }
.hub-ecosystem-icon-3 { transform: rotate(90deg) translate(0, -90px); }
.hub-ecosystem-icon-4 { transform: rotate(135deg) translate(0, -90px); }
.hub-ecosystem-icon-5 { transform: rotate(180deg) translate(0, -90px); }
.hub-ecosystem-icon-6 { transform: rotate(225deg) translate(0, -90px); }
.hub-ecosystem-icon-7 { transform: rotate(270deg) translate(0, -90px); }
.hub-ecosystem-icon-8 { transform: rotate(315deg) translate(0, -90px); }
/* Outer ring (12 icons, r=135px) */
.hub-ecosystem-icon-9 { transform: rotate(0deg) translate(0, -135px); }
.hub-ecosystem-icon-10 { transform: rotate(30deg) translate(0, -135px); }
.hub-ecosystem-icon-11 { transform: rotate(60deg) translate(0, -135px); }
.hub-ecosystem-icon-12 { transform: rotate(90deg) translate(0, -135px); }
.hub-ecosystem-icon-13 { transform: rotate(120deg) translate(0, -135px); }
.hub-ecosystem-icon-14 { transform: rotate(150deg) translate(0, -135px); }
.hub-ecosystem-icon-15 { transform: rotate(180deg) translate(0, -135px); }
.hub-ecosystem-icon-16 { transform: rotate(210deg) translate(0, -135px); }
.hub-ecosystem-icon-17 { transform: rotate(240deg) translate(0, -135px); }
.hub-ecosystem-icon-18 { transform: rotate(270deg) translate(0, -135px); }
.hub-ecosystem-icon-19 { transform: rotate(300deg) translate(0, -135px); }
.hub-ecosystem-icon-20 { transform: rotate(330deg) translate(0, -135px); }

/* Calendar */
.calendar-nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem; }
.calendar-nav h3 { margin: 0; font-size: 1.1rem; }
.calendar-weekdays { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; margin-bottom: 0.25rem; font-size: 0.7rem; color: var(--muted); text-align: center; }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; max-width: 560px; }
.cal-cell { aspect-ratio: 1; min-height: 3rem; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); display: flex; flex-direction: column; align-items: center; justify-content: flex-start; padding: 0.25rem; cursor: pointer; font-size: 0.8rem; }
.cal-cell:hover { border-color: var(--accent); }
.cal-cell.out { opacity: 0.25; cursor: default; }
.cal-cell.today { outline: 1px solid var(--accent); }
.cal-cell .cal-day-num { font-weight: 600; }
.cal-cell .cal-count { font-size: 0.65rem; color: var(--accent); margin-top: 0.15rem; }
.calendar-day-list { margin-top: 1rem; }
.calendar-day-list h4 { margin: 0.5rem 0 1rem; }

/* Dashboard / charts */
.dashboard-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0.75rem; margin-bottom: 1.5rem; }
.dash-card { padding: 1rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); }
.dash-card .dash-value { font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.dash-card .dash-label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; }
.chart-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
@media (max-width: 700px) { .chart-row { grid-template-columns: 1fr; } }
.chart-box { padding: 1rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); min-height: 220px; }
.chart-wide { margin-bottom: 1rem; min-height: 240px; }
.dashboard-footnote { font-size: 0.8rem; margin-top: 0.5rem; }

.detail-panel { position: fixed; top: 0; right: 0; width: min(420px, 100vw); height: 100vh; background: var(--surface); border-left: 1px solid var(--border); overflow: auto; z-index: 10; }
.detail-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.5rem; padding: 1rem; border-bottom: 1px solid var(--border); }
.detail-header h2 { margin: 0; font-size: 1rem; word-break: break-all; flex: 1; }
.detail-header-actions { display: flex; gap: 0.35rem; flex-shrink: 0; }
.detail-header-actions button { padding: 0.35rem 0.6rem; font-size: 0.8rem; }
#detail-body { padding: 1rem; white-space: pre-wrap; font-size: 0.9rem; }
.detail-actions { padding: 1rem; display: flex; gap: 0.5rem; }
.detail-actions button { flex: 1; }

/* Modal */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.7); }
.modal-card { position: relative; width: 100%; max-width: 520px; max-height: 90vh; overflow: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 20px 50px rgba(0,0,0,0.5); }
.modal-card-settings {
  max-width: 680px;
  width: 92%;
  height: 82vh;
  min-height: 420px;
  max-height: 82vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.modal-card-settings .settings-body { overflow: auto; flex: 1; min-height: 0; padding-bottom: 1.5rem; }
.settings-panel { display: none; flex: 1; min-height: 0; flex-direction: column; overflow: hidden; }
.settings-panel.active { display: flex; }
.settings-panel .settings-body { flex: 1; min-height: 280px; }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.25rem; border-bottom: 1px solid var(--border); }
.modal-header h2 { margin: 0; font-size: 1.1rem; }
.modal-header-actions { display: flex; align-items: center; gap: 0.5rem; }
.btn-link-small { font-size: 0.875rem; padding: 0.25rem 0.5rem; }
.modal-close { border: none; background: transparent; font-size: 1.5rem; line-height: 1; color: var(--muted); padding: 0 0.25rem; }
.modal-close:hover { color: var(--text); }
.modal-tabs { display: flex; border-bottom: 1px solid var(--border); }
.modal-tab { flex: 1; padding: 0.65rem; border: none; background: transparent; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.modal-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.create-panel { padding: 1.25rem; display: flex; flex-direction: column; gap: 0.5rem; }
.create-panel label { font-size: 0.8rem; color: var(--muted); margin-top: 0.25rem; }
.create-panel input, .create-panel textarea { padding: 0.5rem 0.65rem; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-family: inherit; }
.create-msg { min-height: 1.25rem; font-size: 0.85rem; }
.create-msg.ok { color: #22c55e; }
.create-msg.err { color: #f87171; }

/* How to use modal — wide, step-by-step */
.modal-card-how-to-use {
  width: 92vw;
  max-width: 960px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.how-to-use-body {
  padding: 1.25rem 1.75rem 1.75rem;
  overflow: auto;
  flex: 1;
  min-height: 0;
}
.how-to-intro {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.5;
}
.how-to-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
}
.flow-step {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.6rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.8rem;
}
.flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 0.7rem;
}
.flow-arrow { color: var(--muted); font-size: 0.9rem; }
.how-to-step {
  margin-bottom: 1.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.how-to-step:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.how-to-step h3 { margin: 0 0 0.5rem; font-size: 1.05rem; color: var(--text); display: flex; align-items: center; gap: 0.5rem; }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.5rem;
  padding: 0 0.35rem;
  border-radius: 6px;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 0.8rem;
}
.step-what {
  margin: 0 0 0.75rem;
  padding: 0.5rem 0.75rem 0.5rem 1rem;
  background: rgba(34, 211, 238, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.45;
}
.how-to-step ul { margin: 0 0 0.75rem; padding-left: 1.25rem; }
.how-to-step li { margin-bottom: 0.35rem; font-size: 0.9rem; line-height: 1.5; }
.how-to-step code { font-size: 0.8rem; background: var(--bg); padding: 0.1rem 0.35rem; border-radius: 4px; }
.how-to-table { width: 100%; border-collapse: collapse; margin: 0.75rem 0; font-size: 0.88rem; }
.how-to-table th, .how-to-table td { padding: 0.5rem 0.75rem; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.how-to-table th { background: var(--bg); color: var(--muted); font-weight: 600; }
.how-to-table code { font-size: 0.8rem; }
.example-block {
  margin-top: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.example-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-bottom: 0.35rem; display: block; }
.example-block pre { margin: 0; font-size: 0.8rem; white-space: pre-wrap; word-break: break-all; }
.diagram-box {
  margin: 1rem 0;
  padding: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.diagram-title { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-bottom: 0.5rem; }
.diagram-svg { width: 100%; height: auto; max-height: 90px; }
.diagram-text { fill: var(--text); font-size: 11px; font-family: system-ui, sans-serif; }
.diagram-text-small { fill: var(--muted); font-size: 9px; font-family: system-ui, sans-serif; }
.how-to-sub { margin: 1rem 0 0.5rem; font-size: 0.95rem; color: var(--accent); }
.how-to-step-inline { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.how-to-step-inline h5 { margin: 0 0 0.5rem; font-size: 1rem; color: var(--text); display: flex; align-items: center; gap: 0.5rem; }
.how-to-step-inline p { margin: 0 0 0.5rem; font-size: 0.9rem; line-height: 1.5; }
.how-to-step-inline .how-to-note { margin-top: 0.5rem; }
.integration-card {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.integration-card h5 { margin: 0 0 0.5rem; font-size: 0.95rem; color: var(--accent); }
.integration-card p { margin: 0 0 0.5rem; font-size: 0.9rem; line-height: 1.5; }
.integration-card .example-block { margin-top: 0.5rem; }
.how-to-details { margin-top: 0.75rem; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.how-to-details summary { padding: 0.5rem 0.75rem; cursor: pointer; font-size: 0.9rem; color: var(--accent); background: var(--surface); list-style: none; }
.how-to-details summary:hover { color: var(--text); }
.how-to-details summary:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.how-to-details summary::-webkit-details-marker { display: none; }
.how-to-details-body { padding: 0.75rem 1rem; border-top: 1px solid var(--border); font-size: 0.9rem; line-height: 1.5; }
.how-to-steps-list { margin: 0.5rem 0 0.75rem; padding-left: 1.25rem; }
.how-to-steps-list li { margin-bottom: 0.5rem; }
.settings-list { margin: 0 0 0.75rem; padding-left: 1.25rem; font-size: 0.9rem; line-height: 1.55; }
.settings-list li { margin-bottom: 0.5rem; }
.how-to-note { margin-top: 1rem; padding: 0.5rem 0.75rem; background: var(--surface); border-radius: 6px; font-size: 0.85rem; line-height: 1.5; }
.settings-body { padding: 1rem 1.25rem; }
.settings-intro { margin: 0 0 1rem; font-size: 0.9rem; color: var(--muted); }
.settings-row { display: flex; gap: 0.75rem; margin-bottom: 0.5rem; }
.settings-label { font-weight: 600; min-width: 6rem; }
.settings-value { color: var(--accent); }
.settings-value-wrap { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.settings-code { font-size: 0.85rem; background: var(--bg); padding: 0.2rem 0.5rem; border-radius: 4px; word-break: break-all; }
.btn-copy-small { padding: 0.2rem 0.5rem; font-size: 0.75rem; }
.settings-h4 { margin: 1rem 0 0.5rem; font-size: 0.95rem; }
.team-roles-list { display: flex; flex-direction: column; gap: 0.25rem; }
.team-roles-list .team-role-row { font-family: ui-monospace, monospace; font-size: 0.85rem; }
.settings-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); padding: 0 1rem; }
.settings-tab { padding: 0.65rem 1rem; border: none; background: transparent; color: var(--muted); font-size: 0.9rem; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.settings-tab:hover { color: var(--text); }
.settings-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.how-to-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); padding: 0 1.25rem; }
.how-to-tab { padding: 0.65rem 1rem; border: none; background: transparent; color: var(--muted); font-size: 0.9rem; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.how-to-tab:hover { color: var(--text); }
.how-to-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.how-to-panel { display: none; flex: 1; min-height: 0; flex-direction: column; overflow: hidden; }
.how-to-panel.active { display: flex; }
.settings-steps-list { margin: 0 0 0.75rem; padding-left: 1.25rem; font-size: 0.9rem; line-height: 1.6; color: var(--text); }
.settings-steps-list li { margin-bottom: 0.35rem; }
.settings-label-hint { font-weight: normal; color: var(--muted); font-size: 0.85em; }
.theme-toggle { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.theme-btn { padding: 0.5rem 1rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font-size: 0.9rem; cursor: pointer; }
.theme-btn:hover { border-color: var(--accent); }
.theme-btn[aria-pressed="true"] { background: var(--accent); color: #000; border-color: var(--accent); }
.accent-presets { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.accent-swatch { width: 2.25rem; height: 2.25rem; border-radius: 50%; border: 2px solid var(--border); cursor: pointer; padding: 0; background: var(--bg); }
.accent-swatch:hover { border-color: var(--text); transform: scale(1.08); }
.accent-swatch.active { border-color: var(--text); box-shadow: 0 0 0 2px var(--surface); }
#accent-custom { width: 100%; max-width: 8rem; height: 2.5rem; padding: 0.2rem; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); cursor: pointer; }
.settings-actions { display: flex; align-items: center; gap: 0.75rem; margin-top: 1rem; flex-wrap: wrap; }
.settings-msg { font-size: 0.9rem; color: var(--muted); }
.settings-msg.ok { color: var(--accent); font-weight: 500; }
.settings-msg.err { color: #f87171; }
.settings-hr { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }

/* Setup checklist (Guided Setup) */
.setup-checklist { list-style: none; padding: 0; margin: 0.75rem 0 0; }
.setup-step { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.setup-step:last-child { border-bottom: none; }
.setup-step-icon { flex-shrink: 0; width: 1.25rem; height: 1.25rem; border-radius: 50%; border: 1px solid var(--border); background: var(--bg); display: inline-flex; align-items: center; justify-content: center; font-size: 0.7rem; font-weight: 700; color: var(--muted); }
.setup-step.setup-step-done .setup-step-icon { background: var(--accent); border-color: var(--accent); color: #000; }
.setup-step-label { font-weight: 500; flex-shrink: 0; }
.setup-step-hint { margin-left: auto; font-size: 0.8rem; color: var(--muted); min-width: 0; }
@media (max-width: 480px) { .setup-step-hint { display: none; } }
.settings-h3 { margin: 0 0 0.5rem; font-size: 1rem; }
.settings-form { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.75rem; }
.settings-form label:not(.settings-checkbox-label) { font-size: 0.9rem; font-weight: 500; }
.settings-form input[type="text"] { padding: 0.5rem 0.75rem; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); }
.settings-checkbox-label { display: flex; align-items: center; gap: 0.5rem; font-weight: normal; cursor: pointer; }
.settings-form-actions { display: flex; align-items: center; gap: 0.75rem; margin-top: 0.5rem; flex-wrap: wrap; }

/* Toast (Re-index, etc.) */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(1rem);
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 0.9rem;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
}
.toast.toast-show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.toast-err { border-color: #ef4444; color: #fca5a5; }
.list-item.selected { border-color: var(--accent); background: rgba(34, 211, 238, 0.12); }

/* Loading state */
.loading-state { padding: 2rem; text-align: center; color: var(--muted); }
.loading-state::before { content: ''; display: inline-block; width: 1.25rem; height: 1.25rem; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; margin-right: 0.5rem; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Responsive: small screens and touch targets */
@media (max-width: 768px) {
  .hub-header { padding: 0.75rem 1rem; gap: 0.5rem; }
  .hub-header h1 { font-size: 1.1rem; }
  .hub-auth button:not(.modal-close),
  .hub-auth .btn-provider { min-height: 44px; min-width: 44px; padding: 0.6rem 0.75rem; }
  .search-section { padding: 0.75rem 1rem; gap: 0.5rem; }
  .search-section input[type="text"] { min-width: 100%; }
  .search-section select,
  .search-section input[type="date"],
  .search-section button { min-height: 44px; }
  .browse-toolbar { padding: 0.5rem 1rem; }
  .view-tab { min-height: 44px; padding: 0.5rem 0.85rem; }
  .tabs { padding: 0.5rem 1rem; gap: 0.2rem; }
  .tab { min-height: 44px; padding: 0.5rem 0.75rem; font-size: 0.9rem; }
  .tab-panel { padding: 0.75rem 1rem; }
  .list-item { min-height: 48px; padding: 0.85rem; }
  .detail-panel { width: 100%; max-width: 100%; }
  .detail-header-actions button { min-height: 44px; min-width: 44px; }
  .modal { padding: 0.5rem; align-items: flex-start; }
  .modal-card { max-height: 95vh; }
  .modal-card-how-to-use { width: 100%; max-width: 100%; }
  .presets-row input { width: 100%; max-width: 12rem; }
  .calendar-grid { max-width: 100%; }
  .cal-cell { min-height: 2.5rem; }
  .settings-row { flex-wrap: wrap; }
  .settings-form-actions { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .hub-auth { width: 100%; justify-content: flex-end; }
  .flow-arrow { display: none; }
  .how-to-flow { flex-direction: column; align-items: stretch; }
}