/* ═══════════════════════════════════════════════════════════════
   PIOS main.css  —  Warm Design System
   Session 25 (base) + Phase 2B (comprehensive warm overrides)
   All rules use !important to override template inline styles.
   Template <style> blocks are intentionally left intact.
   ═══════════════════════════════════════════════════════════════ */

:root {
  --bg:           #F8F4F0;
  --surface:      #F4EDE4;
  --surface-2:    #EDE4D8;
  --accent:       #2A8C8C;
  --accent-hover: #237878;
  --accent-soft:  #C97A5F;
  --text:         #3F2A1E;
  --text-light:   #6B5A4A;
  --text-muted:   #9A8070;
  --border:       #E8D9C9;
  --border-soft:  #EFE5D8;
  --shadow:       0 6px 20px rgba(42, 140, 140, 0.12);
  --shadow-soft:  0 2px 10px rgba(0, 0, 0, 0.06);
  --radius-sm:    7px;
  --radius:       10px;
  --radius-lg:    16px;
  --radius-xl:    20px;
}

/* ── BASE ─────────────────────────────────────────────────────── */
html, body {
  font-family: 'Nunito', system-ui, sans-serif !important;
  background: var(--bg) !important;
  color: var(--text) !important;
  font-size: 16.6px;
  line-height: 1.82;
}
.main, .content {
  background: var(--bg) !important;
}

/* ── SIDEBAR ──────────────────────────────────────────────────── */
.sidebar {
  background: var(--surface) !important;
  border-right: 1px solid var(--border) !important;
}
.sidebar-top {
  border-bottom: 1px solid var(--border) !important;
}
.sidebar-bottom {
  border-top: 1px solid var(--border) !important;
}
.wordmark {
  color: var(--text) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.wordmark-sub {
  color: var(--text-muted) !important;
}

/* ── NAVIGATION ───────────────────────────────────────────────── */
.nav-section {
  color: var(--text-muted) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.nav-item {
  color: var(--text-light) !important;
  border-radius: var(--radius) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
  transition: background 0.15s, color 0.15s !important;
}
.nav-item:hover {
  background: rgba(42, 140, 140, 0.08) !important;
  color: var(--accent) !important;
}
.nav-item.active {
  background: rgba(42, 140, 140, 0.13) !important;
  color: var(--accent) !important;
  font-weight: 600 !important;
}

/* ── TOPBAR ───────────────────────────────────────────────────── */
.topbar {
  background: var(--bg) !important;
  border-bottom: 1px solid var(--border) !important;
}
.topbar-title {
  color: var(--text) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.topbar-back, .topbar-date {
  color: var(--text-muted) !important;
}
.topbar-back:hover {
  color: var(--accent) !important;
}

/* ── TABS ─────────────────────────────────────────────────────── */
.tabs {
  border-bottom: 1px solid var(--border) !important;
}
.tab {
  color: var(--text-muted) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
  font-size: 13px !important;
}
.tab.active {
  color: var(--accent) !important;
  border-bottom-color: var(--accent) !important;
  font-weight: 600 !important;
}
.tab-content {
  background: var(--bg) !important;
}

/* ── CARDS & SURFACES ─────────────────────────────────────────── */
.card, .side-card, .stat-box {
  background: white !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-soft) !important;
  transition: all 0.2s ease !important;
}
.side-card:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow) !important;
  border-color: var(--accent) !important;
}
.card:hover {
  border-color: var(--accent) !important;
  box-shadow: var(--shadow) !important;
}
.space-card {
  border: 1px solid var(--border) !important;
  border-radius: 14px !important;
  background: white !important;
  transition: all 0.2s ease !important;
}
.space-card:hover {
  border-color: var(--accent) !important;
  box-shadow: 0 4px 16px rgba(42, 140, 140, 0.1) !important;
  transform: translateY(-2px) !important;
}
.threads-dashboard {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: white !important;
}
.dashboard-header {
  border-bottom: 1px solid var(--border) !important;
  background: white !important;
}
.dashboard-header-title {
  color: var(--text) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.space-group-header {
  background: var(--surface) !important;
}

/* ── THREAD ROWS ──────────────────────────────────────────────── */
.thread-row {
  background: white !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-soft) !important;
  padding: 14px 16px !important;
  margin-bottom: 8px !important;
  border-bottom: none !important;
  transition: all 0.2s ease !important;
}
.thread-row:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow) !important;
  border-color: var(--accent) !important;
}
.thread-title {
  color: var(--text) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.thread-meta {
  color: var(--text-muted) !important;
}
.thread-project {
  background: rgba(42, 140, 140, 0.1) !important;
  color: var(--accent) !important;
}

/* ── PROJECT CANVAS BANNER ────────────────────────────────────── */
.proj-canvas-banner {
  background: white !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-soft) !important;
  margin-bottom: 20px !important;
  transition: all 0.2s ease !important;
}
.proj-canvas-banner:hover {
  box-shadow: var(--shadow) !important;
  border-color: var(--accent) !important;
}
.proj-canvas-header {
  padding: 14px 18px !important;
  border-bottom: 1px solid var(--border-soft) !important;
}
.proj-canvas-label {
  color: var(--text-light) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.proj-canvas-preview {
  color: var(--text-muted) !important;
}
.proj-canvas-content {
  font-size: 14.5px !important;
  line-height: 1.75 !important;
  padding: 16px 18px !important;
  color: var(--text) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}

/* ── LABELS & META ────────────────────────────────────────────── */
.section-label, .nav-section {
  color: var(--accent) !important;
  letter-spacing: 0.07em !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.side-card-title {
  font-size: 12px !important;
  color: var(--text-light) !important;
  text-transform: uppercase !important;
  letter-spacing: 0.07em !important;
  margin-bottom: 14px !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}

/* ── STATS ────────────────────────────────────────────────────── */
.stat-box {
  background: var(--surface) !important;
  padding: 14px 10px !important;
  border-radius: var(--radius) !important;
  border: none !important;
  box-shadow: none !important;
  text-align: center;
}
.stat-num {
  font-size: 22px !important;
  font-weight: 700 !important;
  color: var(--accent) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.stat-lbl {
  color: var(--text-muted) !important;
  font-size: 11px !important;
}

/* ── BADGES ───────────────────────────────────────────────────── */
.badge-open {
  background: rgba(42, 140, 140, 0.1) !important;
  color: var(--accent) !important;
}
.badge-closed {
  background: var(--surface) !important;
  color: var(--text-muted) !important;
}
.badge-s {
  background: rgba(193, 90, 74, 0.1) !important;
  color: var(--accent-soft) !important;
}

/* ═══════════════════════════════════════════════════════════════
   BUTTONS — Warm 3-colour system
   ─────────────────────────────────────────────────────────────
   Primary / Confirm  →  teal filled  (main action)
   Secondary / Cancel →  teal outline (neutral)
   Danger / Red       →  terracotta   (destructive)
   ═══════════════════════════════════════════════════════════════ */

/* Primary — teal filled */
.btn-primary, .btn-confirm {
  background: var(--accent) !important;
  color: #ffffff !important;
  border: none !important;
  border-radius: var(--radius) !important;
  padding: 9px 18px !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
  letter-spacing: 0.01em !important;
  cursor: pointer !important;
  transition: background 0.15s !important;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 5px !important;
}
.btn-primary:hover, .btn-confirm:hover {
  background: var(--accent-hover) !important;
  color: #ffffff !important;
}

/* Secondary / Cancel — teal outline */
.btn-secondary, .btn-cancel {
  background: transparent !important;
  color: var(--accent) !important;
  border: 1.5px solid var(--accent) !important;
  border-radius: var(--radius) !important;
  padding: 8px 16px !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
  cursor: pointer !important;
  transition: background 0.15s !important;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 5px !important;
}
.btn-secondary:hover, .btn-cancel:hover {
  background: rgba(42, 140, 140, 0.08) !important;
}

/* Danger — warm terracotta outline */
.btn-danger {
  background: transparent !important;
  color: var(--accent-soft) !important;
  border: 1.5px solid rgba(201, 122, 95, 0.5) !important;
  border-radius: var(--radius) !important;
  padding: 8px 16px !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
  cursor: pointer !important;
  transition: background 0.15s !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 5px !important;
}
.btn-danger:hover {
  background: rgba(201, 122, 95, 0.08) !important;
}

/* Confirm red — filled warm red for irreversible actions */
.btn-confirm-red {
  background: #C15A4A !important;
  color: #ffffff !important;
  border: none !important;
  border-radius: var(--radius) !important;
  padding: 10px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
  cursor: pointer !important;
  transition: background 0.15s !important;
  flex: 1 !important;
}
.btn-confirm-red:hover {
  background: #A84A3C !important;
}

/* Block modifier — full width (must override inline-flex from btn-secondary) */
.btn-block {
  width: 100% !important;
  display: flex !important;
  justify-content: center !important;
  margin-bottom: 7px !important;
}

/* ── TOOLBAR BUTTONS (thread.html) ────────────────────────────── */
.go-deep-btn {
  background: white !important;
  color: var(--text-light) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
  font-size: 13px !important;
  transition: background 0.15s, border-color 0.15s !important;
}
.go-deep-btn:hover {
  background: var(--surface) !important;
  border-color: var(--accent) !important;
  color: var(--accent) !important;
}
.go-deep-btn.active {
  background: rgba(42, 140, 140, 0.1) !important;
  color: var(--accent) !important;
  border-color: var(--accent) !important;
  font-weight: 600 !important;
}

/* ── SEND BUTTON (thread.html) ────────────────────────────────── */
.send-btn {
  background: var(--accent) !important;
  border-radius: 50% !important;
  border: none !important;
  transition: background 0.15s, transform 0.1s !important;
}
.send-btn:hover {
  background: var(--accent-hover) !important;
}
.send-btn:active {
  transform: scale(0.95) !important;
}
.send-btn:disabled {
  background: var(--border) !important;
  cursor: not-allowed !important;
}

/* ── FORM INPUTS (modal forms, not chat-input) ────────────────── */
.modal-box input[type="text"],
.modal-box textarea:not(.chat-input),
.modal-box select,
.field input[type="text"],
.field select,
.assign-modal input[type="text"] {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  background: white !important;
  color: var(--text) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
  transition: border-color 0.15s !important;
}
.modal-box input[type="text"]:focus,
.modal-box textarea:not(.chat-input):focus,
.modal-box select:focus,
.field input[type="text"]:focus,
.field select:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px rgba(42, 140, 140, 0.1) !important;
  outline: none !important;
}

/* ── MODALS ───────────────────────────────────────────────────── */
.modal-box {
  background: var(--bg) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-xl) !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.14) !important;
}
.modal-title {
  color: var(--text) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}
.modal-sub {
  color: var(--text-light) !important;
  font-family: 'Nunito', system-ui, sans-serif !important;
}

/* ── CHAT BUBBLES ─────────────────────────────────────────────── */
.bubble.assistant {
  background: var(--surface) !important;
  border-left: 4px solid var(--accent) !important;
  border-radius: 4px 20px 20px 4px !important;
}
.bubble.user {
  background: var(--accent-soft) !important;
  color: white !important;
  border-radius: 20px 4px 4px 20px !important;
}

/* ── ICON SIZING — Tabler Icons (Phase 2B) ────────────────────── */

/* Toolbar buttons: inherit from go-deep-btn font-size (13px) */
.go-deep-btn i { font-size: 14px !important; vertical-align: -2px; }

/* Toolbar icon + text warm colour at rest, teal on hover and active */
.go-deep-btn {
  color: var(--text-light) !important;
}
.go-deep-btn:hover {
  color: var(--accent) !important;
}
.go-deep-btn.active {
  color: var(--accent) !important;
}

/* S58 stability fix #2 — Live/Research solid colours. These MUST use !important and
   MUST sit after BOTH .go-deep-btn.active rules above: the button carries both
   .go-deep-btn and .web-search-btn, equal specificity (0,2,0), so among !important
   declarations the later source-order rule wins. Placed here to beat the L470 color
   rule too, not just the L386 background rule (deviation from brief's "after 386"). */
.web-search-btn.active {
  background: #0D9488 !important;
  color: #fff !important;
  border-color: #0D9488 !important;
}
.web-search-btn.research-active {
  background: #6B3FA0 !important;
  color: #fff !important;
  border-color: #6B3FA0 !important;
}

/* Send button — white icon on teal background */
.send-btn { color: white !important; }
.send-btn i { font-size: 17px !important; }

/* Stop button */
.stop-btn i { font-size: 14px !important; vertical-align: -1px; }

/* ── BUBBLE ACTION ICONS ───────────────────────────────────────── */
/* Rate, msg-action, copy, edit — teal at rest, full teal on hover */
.rate-btn,
.msg-action-btn,
.copy-bubble-btn,
.edit-btn {
  color: var(--accent) !important;
  opacity: 0.45 !important;
}
.rate-btn:hover,
.msg-action-btn:hover,
.copy-bubble-btn:hover,
.edit-btn:hover {
  color: var(--accent) !important;
  opacity: 1 !important;
}
.msg-action-btn.danger {
  color: var(--accent-soft) !important;
  opacity: 0.55 !important;
}
.msg-action-btn.danger:hover {
  color: var(--accent-soft) !important;
  opacity: 1 !important;
}
.rate-btn.rated {
  color: var(--accent) !important;
  opacity: 1 !important;
}

/* Sizing for all bubble action icons */
.msg-action-btn i, .rate-btn i, .copy-bubble-btn i, .edit-btn i {
  font-size: 15px !important; vertical-align: -2px;
}

/* User bubbles (terracotta background) — icons must be white, not teal */
.bubble.user .msg-action-btn,
.bubble.user .edit-btn {
  color: rgba(255, 255, 255, 0.8) !important;
  opacity: 1 !important;
}
.bubble.user .msg-action-btn:hover,
.bubble.user .edit-btn:hover {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.15) !important;
}
.bubble.user .msg-action-btn.danger {
  color: rgba(255, 180, 160, 0.9) !important;
}

/* Topbar btn-xs: on mobile (≤767px) suppress emoji ::before, show Tabler icon */
@media (max-width: 767px) {
  .topbar-actions .btn-xs::before { content: none !important; }
  .topbar-actions .btn-xs i { font-size: 15px !important; vertical-align: middle; }
  /* Input toolbar: icon-only on mobile — no wrapping text, cleaner layout */
  .go-deep-btn {
    font-size: 0 !important;
    padding: 7px 9px !important;
    background: var(--surface) !important;
    border-color: transparent !important;
    min-width: 34px !important;
  }
  .go-deep-btn i {
    font-size: 16px !important;
    opacity: 1;
  }
  .go-deep-btn.active {
    background: rgba(42, 140, 140, 0.12) !important;
    border-color: var(--accent) !important;
  }
  /* S58 stability fix #2 (mobile) — same override inside the media query. color:#fff
     keeps the icon glyph white-on-colour even though the text label is font-size:0. */
  .web-search-btn.active {
    background: #0D9488 !important;
    color: #fff !important;
    border-color: #0D9488 !important;
  }
  .web-search-btn.research-active {
    background: #6B3FA0 !important;
    color: #fff !important;
    border-color: #6B3FA0 !important;
  }
/* Space + project page: topbar action buttons compact on mobile */
  .topbar-actions .btn-secondary,
  .topbar-actions .btn-primary,
  .topbar-actions .btn-danger {
    font-size: 11px !important;
    padding: 5px 8px !important;
    border-radius: var(--radius-sm) !important;
    border-width: 1px !important;
    white-space: nowrap !important;
  }
  /* Truncate long topbar titles — project names, space names */
  .topbar-title {
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
    max-width: 130px !important;
    flex-shrink: 1 !important;
  }
  /* Hide chunk count badge on mobile — not useful in the topbar at this size */
  .chunk-badge { display: none !important; }
}
/* On desktop the button shows icon + text naturally */
.topbar-actions .btn-xs i { margin-right: 3px; vertical-align: -2px; }

/* Topbar action buttons (Export, Rename) — warm teal; Delete — terracotta */
.topbar-actions .btn-xs {
  color: var(--accent) !important;
  border-color: rgba(42, 140, 140, 0.4) !important;
  background: transparent !important;
  border-radius: var(--radius-sm) !important;
}
.topbar-actions .btn-xs:hover {
  background: rgba(42, 140, 140, 0.07) !important;
  border-color: var(--accent) !important;
}
.topbar-actions .btn-xs.danger {
  color: var(--accent-soft) !important;
  border-color: rgba(201, 122, 95, 0.45) !important;
}
.topbar-actions .btn-xs.danger:hover {
  background: rgba(201, 122, 95, 0.07) !important;
}

/* Canvas banner label */
.canvas-banner-label { color: var(--text-light) !important; }
.canvas-banner-label i { font-size: 14px !important; vertical-align: -2px; margin-right: 3px; }

/* Canvas edit button */
.btn-canvas-edit i { font-size: 13px !important; vertical-align: -1px; margin-right: 3px; }

/* Archive delete button */
.archive-del-btn i { font-size: 15px !important; vertical-align: -2px; }

/* Scrollbar (webkit) */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }