/* ==========================================================================
   Seeds of Truth UI — style.css
   - CSS custom properties (variables) at top.
   - Media queries grouped at bottom.
   ========================================================================== */


/* ==========================================================================
   1) THEME TOKENS / DESIGN VARIABLES
   ========================================================================== */
:root {
  --bg-light: #f3f4f6;
  --bg-dark: #020617;
  --text-light: #111827;
  --text-dark: #e5e7eb;

  --accent: #C4A484;
  --accent-dark: #047857;

  --panel-light: #ffffff;
  --panel-dark: #020617;
  --panel-muted-light: #f9fafb;
  --panel-muted-dark: #030712;

  --border-light: #e5e7eb;
  --border-dark: #1f2933;

  --muted-light: #6b7280;
  --muted-dark: #9ca3af;

  --hover: #00FF7F;
}


/* ==========================================================================
   2) BASE / RESET
   ========================================================================== */
* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  display: flex;
  height: 100vh;
  background: var(--bg-dark);
  color: var(--text-dark);
}

body.light {
  background: var(--bg-light);
  color: var(--text-light);
}

a {
  color: inherit;
  text-decoration: none;
}


/* ==========================================================================
   3) APP LAYOUT
   ========================================================================== */
.app {
  display: flex;
  width: 100%;
  height: 100%;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-dark);
}

body.light .main { background: var(--bg-light); }

/* Main header (mobile) — currently unused (kept for compatibility) */
.main-header { display: none; }


/* ==========================================================================
   4) SIDEBAR
   ========================================================================== */

/* Light-mode sidebar surface */
body.light .sidebar {
  background: rgba(255,255,255,0.95);
  border-right-color: rgba(148,163,184,0.5);
}

/* Sidebar header row (brand + theme toggle) */
.sidebar-header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

/* Brand block */
.brand{
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-icon{
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5, 150, 105, 0.15);
  color: #bbf7d0;
}

body.light .brand-icon{
  background: rgba(5,150,105,0.12);
  color: #047857;
}

.brand-title{
  font-weight: 600;
  font-size: 16px;
}

.brand-subtitle{
  font-size: 11px;
  color: var(--muted-dark);
}

body.light .brand-subtitle{ color: var(--muted-light); }

/* Lock button*/
.lock-btn{
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 9999;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  background: rgba(15,23,42,0.95);
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}
body.light .lock-btn{
  background: #fff;
  color: var(--accent);
}

#lock-btn.unlocked{
  color: #16a34a; /* Tailwind green-600 */
}

#lock-btn:disabled{
  opacity: 0.85;
  cursor: default;
  pointer-events: none; /* belt + suspenders */
}

body.light .lock-btn:hover{ background: var(--accent); color:#fff; }
.lock-btn:hover{ background: var(--accent); color:#fff; }

.lock-modal{ position: fixed; inset:0; z-index:9998; background: rgba(0,0,0,0.55);
  display:none; align-items:center; justify-content:center; padding:20px; }
.lock-modal.open{ display:flex; }

.lock-card{ width:min(420px,100%); border-radius:16px; border:1px solid rgba(148,163,184,0.45);
  background: rgba(15,23,42,0.96); color: var(--text-dark); padding:16px; position:relative; }
body.light .lock-card{ background:#fff; color: var(--text-light); }

.lock-close{ position:absolute; top:10px; right:10px; width:28px; height:28px;
  border-radius:999px; border:none; background:transparent; cursor:pointer; font-size:18px; color:inherit; }
.lock-label{ display:block; font-size:13px; margin-bottom:8px; font-weight:650; }
.lock-row{ display:flex; gap:8px; align-items:center; }
.lock-input{ flex:1; height:36px; border-radius:10px; border:1px solid rgba(148,163,184,0.55);
  padding:0 10px; background: rgba(2,6,23,0.55); color: var(--text-dark); outline:none; }
body.light .lock-input{ background:#fff; color: var(--text-light); }
.lock-enter{ height:36px; border-radius:10px; border:none; padding:0 12px; cursor:pointer;
  background: var(--accent); color:#fff; font-weight:700; }
.lock-msg{ margin-top:10px; font-size:12px; min-height:16px; }


/* Brand title as clickable button */
.brand-title-btn{
  border: none;
  background: transparent;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  text-align: left;
}
.brand-title-btn:hover{
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Theme toggle */
.theme-toggle{
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}
.theme-toggle:hover{ background: rgba(148,163,184,0.2); }
body.light .theme-toggle:hover{ background: rgba(148,163,184,0.2); }

.theme-icon{
  width: 18px;
  height: 18px;
  display: none;
}
.theme-icon.sun{ display: block; }
body.light .theme-icon.sun{ display: none; }
body.light .theme-icon.moon{ display: block; }

/* Sidebar section titles */
.sidebar-section-title{
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-dark);
  margin: 6px 10px;
}
body.light .sidebar-section-title{ color: var(--muted-light); }

/* Optional pill button style */
.pill-button{
  border-radius: 10px;
  padding: 8px 10px;
  border: none;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  cursor: pointer;
  font-size: 13px;
  text-align: left;
  background: rgba(5, 150, 105, 0.16);
  color: #a7f3d0;
}
body.light .pill-button{
  background: rgba(5, 150, 105, 0.12);
  color: #047857;
}

/* "Recent" empty state item */
.recent-item{
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 13px;
  color: var(--muted-dark);
  cursor: default;
}
.recent-item:hover{ background: rgba(148,163,184,0.12); }
body.light .recent-item{ color: var(--muted-light); }
body.light .recent-item:hover{ background: rgba(148,163,184,0.18); }

/* Pin the sidebar itself so it doesn't scroll with the page */
#sidebar.sidebar{
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: 260px;
  padding-left: 12px;
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden; /* keep scrolling inside sidebar-scroll */
  z-index: 4000;
}

/* Header stays at top */
#sidebar .sidebar-header{ flex: 0 0 auto; }

/* Only this area scrolls */
#sidebar .sidebar-scroll{
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding-right: 4px;
}

/* Sidebar footer */
.sidebar-footer{
  padding-top: 12px;
  padding-bottom: 12px;
  border-top: 1px solid rgba(148,163,184,0.35);
  border-right: 1px solid rgba(148,163,184,0.35);
}
body.light .sidebar-footer{ border-top-color: rgba(148,163,184,0.5); }

/* Footer stays pinned at bottom */
#sidebar .sidebar-footer{
  flex: 0 0 auto;
  margin-top: auto;
}

/* Collapse button (large screens) */
.sidebar-collapse-btn{
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 10px;
  color: inherit;
}
.sidebar-collapse-btn:hover{ background: rgba(148,163,184,0.18); }

/* Position collapse button just above footer */
#sidebar .sidebar-collapse-btn{
  position: absolute;
  right: 12px;
  bottom: 86px; /* adjust: footer height + spacing */
  z-index: 10;
}

/* Collapsed state */
body.sidebar-collapsed #sidebar{
  transform: translateX(-100%);
}

/* Open button appears when collapsed */
.sidebar-open-btn{
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 5000;
  display: none;
  background: rgba(15,23,42,0.95);
  color: var(--text-dark);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
body.light .sidebar-open-btn{
  background: #fff;
  color: var(--text-light);
}
body.sidebar-collapsed .sidebar-open-btn{ display: inline-flex; }

/* Sidebar user row */
.sidebar-user{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: 10px;
  cursor: default;
}
.sidebar-user:hover{ background: rgba(148,163,184,0.12); }

.sidebar-avatar{
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.sidebar-user-name{
  font-size: 13px;
  font-weight: 600;
}

.sidebar-user-sub{
  font-size: 11px;
  color: var(--muted-dark);
}
body.light .sidebar-user-sub{ color: var(--muted-light); }


/* ==========================================================================
   5) STATUS PANEL (SIDEBAR)
   ========================================================================== */
.status-panel{
  border-radius: 6px;
  padding: 10px;
  margin: 0 6px 10px;
  background: rgba(148,163,184,0.08);
}
body.light .status-panel{
  background: rgba(148,163,184,0.14);
  border-color: rgba(148,163,184,0.60);
}

.status-row{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.status-left{
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.status-dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #64748b; /* default gray */
  box-shadow: 0 0 0 3px rgba(100,116,139,0.18);
  flex-shrink: 0;
}

.status-label{
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status-chip{
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 6px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.45);
  color: var(--muted-dark);
}
body.light .status-chip{ color: var(--muted-light); }

/* Dot states */
.status-dot.red{
  background: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,0.20);
}
.status-dot.yellow{
  background: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245,158,11,0.22);
}
.status-dot.green{
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.22);
}

.status-queue{
  font-size: 12px;
  line-height: 1.35;
  color: var(--muted-dark);
  margin-bottom: 10px;
}
body.light .status-queue{ color: var(--muted-light); }

.status-messages-title{
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
  color: var(--muted-dark);
}
body.light .status-messages-title{ color: var(--muted-light); }

.status-messages-list{
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 160px;
  overflow: auto;
  padding-right: 4px;
}

.status-message{
  font-size: 12px;
  line-height: 1.35;
  padding: 8px 8px;
  border-radius: 8px;
  background: rgba(15,23,42,0.65);
}
body.light .status-message{
  background: rgba(255,255,255,0.9);
  border-color: rgba(148,163,184,0.55);
}

.status-message.muted{ color: var(--muted-dark); }
body.light .status-message.muted{ color: var(--muted-light); }


/* ==========================================================================
   6) CHAT AREA
   ========================================================================== */
.chat-wrapper{
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

.chat-inner{
  max-width: 880px;
  margin: 0 auto;
}

/* Welcome */
.welcome{
  text-align: center;
  padding: 60px 12px;
}

.welcome-icon{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  border-radius: 999px;
  margin-bottom: 18px;
  background: rgba(5,150,105,0.2);
  color: #a7f3d0;
}
body.light .welcome-icon{
  background: rgba(5,150,105,0.12);
  color: #065f46;
}

.welcome-title{
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 6px;
}

.welcome-sub{
  font-size: 14px;
  max-width: 460px;
  margin: 0 auto;
  color: var(--muted-dark);
}
body.light .welcome-sub{ color: var(--muted-light); }

/* Messages */
.messages{
  display: flex;
  flex-direction: column;
  gap: 0;
}

.message-row{ width: 100%; }

.message-content{
  max-width: 880px;
  padding: 14px 0;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.message-avatar{
  width: 32px;
  height: 32px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  color: white;
}
.message-avatar.user{ background: var(--accent); }
.message-avatar.bot{ background: linear-gradient(135deg, var(--accent), var(--accent-dark)); }

.message-text{
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
}

/* Bot row background */
.message-row.bot{ background: rgba(15,23,42,0.6); }
body.light .message-row.bot{ background: #f9fafb; }


/* ==========================================================================
   7) REFERENCES
   ========================================================================== */
.references-wrapper{ background: rgba(0,0,0,0.8); }
body.light .references-wrapper{ background: rgba(255,255,255,0.9); }

.references-inner{
  max-width: 880px;
  margin: 0 auto;
  padding: 10px 16px 12px;
}

.references-header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.references-title{
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted-dark);
}
body.light .references-title{ color: var(--muted-light); }

.references-count{
  font-size: 11px;
  color: var(--muted-dark);
}
body.light .references-count{ color: var(--muted-light); }

.references-grid{
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 6px;
}

.ref-card{
  border-radius: 8px;
  border: 1px solid rgba(148,163,184,0.5);
  padding: 6px 8px;
  background: rgba(15,23,42,0.95);
  font-size: 11px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
body.light .ref-card{
  background: #ffffff;
  border-color: rgba(148,163,184,0.6);
}

.ref-header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 4px;
}

.ref-title{
  font-weight: 600;
  font-size: 11px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ref-badge{
  padding: 2px 5px;
  border-radius: 999px;
  background: rgba(5,150,105,0.2);
  color: #bbf7d0;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}
body.light .ref-badge{
  background: rgba(5,150,105,0.15);
  color: #047857;
}

.ref-snippet{
  color: var(--muted-dark);
  font-size: 11px;
  line-height: 1.4;
  max-height: 3.8em;
  overflow: hidden;
}
body.light .ref-snippet{ color: var(--muted-light); }

.ref-link{
  margin-top: 3px;
  font-size: 11px;
  color: #a7f3d0;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
body.light .ref-link{ color: #047857; }

.references-empty{
  margin-top: 4px;
  font-size: 11px;
  color: var(--muted-dark);
}
body.light .references-empty{ color: var(--muted-light); }


/* ==========================================================================
   8) INPUT AREA
   ========================================================================== */
.input-wrapper{
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  padding: 8px 16px 14px;
}
body.light .input-wrapper{
  background: linear-gradient(to top, rgba(148,163,184,0.3), transparent);
}

.input-inner{
  max-width: 880px;
  margin: 0 auto;
}

.input-row{
  display: flex;
  gap: 8px;
  align-items: center;
}

.input-area-wrap{
  position: relative;
  flex: 1;
}

/* Tools button (inset inside textarea) */
.tools-button{
  border-radius: 48px;
  background: rgba(15,23,42,0.95);
  color: var(--text-dark);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
body.light .tools-button{
  background: #ffffff;
  color: var(--text-light);
}

/* Make tools button behave like an inset control */
.tools-button--inset{
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  z-index: 4;
}
/* Unified hover behavior (dark + light) */
.tools-button--inset:hover{
  background: var(--accent);
  color: #fff;
}

/* Explicit light-mode override (same result, higher specificity) */
body.light .tools-button--inset:hover{
  background: var(--accent);
  color: #fff;
}

/* Normalize tools button visuals */
.tools-button,
.tools-button--inset{
  border: none;
  outline: none;
  box-shadow: none;
  background-clip: padding-box;
}

/* Prevent “tan arc” blobs from tools popup */
.tools-popup{
  overflow: hidden;
  isolation: isolate; /* keeps child z-index stacking contained */
}

/* If a decorative pseudo-element exists, kill it */
.tools-popup::before,
.tools-popup::after{
  content: none !important;
  display: none !important;
}

/* If it’s a drop-shadow creating a huge colored arc */
.tools-popup{
  filter: none !important;
}


.chat-input{
  width: 100%;
  overflow-y: hidden;
  border-radius: 48px;
  border: 1px solid rgba(148,163,184,0.7);
  padding: 18px 40px 18px 50px; /* ✅ left padding makes room for tools button */
  font-size: 14px;
  background: rgba(15,23,42,0.95);
  color: var(--text-dark);
  resize: none;
  max-height: 140px;
  outline: none;
}
body.light .chat-input{
  background: #ffffff;
  color: var(--text-light);
}

/* Send button inside the textarea */
.send-button{
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  font-weight: bold;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 4;
}
.send-button:disabled{
  background: var(--hover);
  cursor: not-allowed;
}
.send-button:hover{ background: var(--panel-muted-dark); }

/* Input note row: keep helper text centered and actions on right */
.input-note{
  margin-top: 6px;
  font-size: 11px;
  color: var(--muted-dark);
  display: flex;
  align-items: center;
  gap: 10px;
}
body.light .input-note{ color: var(--muted-light); }

.note-text{
  flex: 1;
  text-align: center;
}

.note-actions{
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   9) TOOLS POPUP
   ========================================================================== */
.tools-popup{
  position: absolute;
  bottom: 50px;
  left: 0;
  width: 260px;
  background: rgba(15,23,42,0.96);
  border-radius: 8px;
  border: 1px solid rgba(148,163,184,0.6);  
  padding: 8px;
  font-size: 12px;
  display: none;
  z-index: 20;
}
body.light .tools-popup{
  background: #ffffff;
  border-color: rgba(148,163,184,0.7);
}
.tools-popup.visible{ display: block; }

.tools-popup-item{
  padding: 6px;
  border-radius: 8px;
  cursor: default;
}
.tools-popup-item:hover{ background: rgba(148,163,184,0.2); }

.tools-popup-item-title{
  font-weight: 600;
  margin-bottom: 2px;
}
.tools-popup-item-sub{
  color: var(--muted-dark);
  font-size: 11px;
}
body.light .tools-popup-item-sub{ color: var(--muted-light); }

/* Tools panel sections */
.tools-section{ padding: 6px; }
.tools-section-title{ font-weight: 700; font-size: 12px; margin-bottom: 6px; }

.tools-label{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
}

.tools-value{
  font-size: 12px;
  color: var(--muted-dark);
}
body.light .tools-value{ color: var(--muted-light); }

.tools-range{ width: 100%; }

.tools-help{
  margin-top: 6px;
  font-size: 11px;
  color: var(--muted-dark);
  line-height: 1.35;
}
body.light .tools-help{ color: var(--muted-light); }

.tools-divider{
  height: 1px;
  margin: 6px 6px;
  background: rgba(148,163,184,0.35);
}
body.light .tools-divider{ background: rgba(148,163,184,0.55); }

/* Segmented control */
.segmented{
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
}
.segmented input{
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.segmented label{
  border: 1px solid rgba(148,163,184,0.6);   /* add a real border */
  border-radius: 10px;
  position: relative;
  padding: 8px 8px;
  text-align: center;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  background: rgba(148,163,184,0.12);
  color: inherit;
  transition: background-color 120ms ease, color 120ms ease, border-color 120ms ease;
}

/* selected */
.segmented input:checked + label{
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* hover */
.segmented label:hover{
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* UI bump */
.segmented input:focus-visible + label{
  outline: 2px solid rgba(5,150,105,0.35);
  outline-offset: 2px;
}


/* Slider customize */
/* Slider customize (safe in Chrome/Safari/Firefox) */
.tools-range{
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 16px;       /* gives room for thumb */
  background: transparent;
  outline: none;
  padding: 0;
  margin: 0;
}

/* Track */
.tools-range::-webkit-slider-runnable-track{
  height: 6px;
  background: rgba(148,163,184,0.4);
  border-radius: 999px;
}
.tools-range::-moz-range-track{
  height: 6px;
  background: rgba(148,163,184,0.4);
  border-radius: 999px;
}

/* Filled portion (Firefox supports this directly) */
.tools-range::-moz-range-progress{
  height: 6px;
  background: var(--accent);
  border-radius: 999px;
}

/* Thumb */
.tools-range::-webkit-slider-thumb{
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  box-shadow: none;     /* ✅ important: removes the giant blob */
  cursor: pointer;
  margin-top: -5px;     /* centers thumb on 6px track */
}
.tools-range::-moz-range-thumb{
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
}

.tools-range:focus{ outline: none; }

/* WebKit fill using background gradient on the range element */
.tools-range{
  background: linear-gradient(
    to right,
    var(--accent) 0%,
    var(--accent) var(--fill, 0%),
    rgba(148,163,184,0.4) var(--fill, 0%),
    rgba(148,163,184,0.4) 100%
  );
  border-radius: 999px;
  height: 6px;
}


/* Tools "+" glyph */
.tools-plus{
  font-size: 24px;
  color: var(--accent);
  font-weight: 900;
  line-height: 1;
  transform: translateY(-1px); /* optical centering */
}
.tools-plus:hover{ color: #ffffff; }


/* ==========================================================================
   10) RECENT CONVERSATIONS LIST
   ========================================================================== */
.recent-item.muted{ opacity: 0.8; }

.recent-preview{
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid transparent;
}
.recent-preview:hover{
  background: rgba(148,163,184,0.12);
  border-color: rgba(148,163,184,0.35);
}
body.light .recent-preview:hover{ background: rgba(148,163,184,0.18); }

.recent-preview-title{
  font-weight: 650;
  font-size: 13px;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.recent-preview-sub{
  font-size: 11px;
  color: var(--muted-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
body.light .recent-preview-sub{ color: var(--muted-light); }

.recent-preview{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.recent-preview-content{
  min-width: 0;
  flex: 1;
}

.recent-delete{
  border: none;
  background: transparent;
  color: #6b7280; /* dark gray */
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 6px;
}
.recent-delete:hover{
  background: rgba(148,163,184,0.25);
  color: #374151;
}
body.light .recent-delete{ color: #4b5563; }
body.light .recent-delete:hover{ background: rgba(148,163,184,0.35); }


/* ==========================================================================
   11) INPUT NOTE + ICON BUTTONS + TOOLTIP
   ========================================================================== */
/* Input note layout */
.input-note{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  font-size: 11px;
  color: var(--muted-dark);
}

body.light .input-note{ color: var(--muted-light); }

/* Center the note text visually across the full row */
.note-text{
  flex: 1;                 /* takes remaining space */
  text-align: center;
  padding-left: 44px;      /* reserve space so text stays centered despite right icons */
  padding-right: 44px;     /* symmetrical reserve */
}

/* Keep icons pinned to the far right */
.note-actions{
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}


.note-spacer{
  justify-self: start;
}

/* Shared icon button */
.icon-btn{
  position: relative; /* required for tooltip positioning */
  border: none;
  background: transparent;
  padding: 0;
  line-height: 1;
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-dark);
}
body.light .icon-btn{ color: var(--muted-light); }

.icon-btn svg{
  width: 20px;
  height: 20px;
  display: block;
}

/* Save button stroke weight tweak */
.icon-btn--ghost svg{ stroke-width: 2.6; }
.icon-btn--ghost svg{ transform: translateY(1px); }

/* SAVE: transparent background always, but highlight on hover */
.icon-btn--ghost:hover{
  background: rgba(148,163,184,0.20);
  color: #111827;
}
body.light .icon-btn--ghost:hover{
  background: rgba(148,163,184,0.30);
  color: #020617;
}

/* TRASH: red accent */
.icon-btn--danger{ color: #ef4444; }
.icon-btn--danger:hover{
  background: rgba(239,68,68,0.14);
  color: #dc2626;
}
body.light .icon-btn--danger:hover{ background: rgba(239,68,68,0.18); }

/* Tooltip (uses data-tooltip) */
.has-tooltip{
  position: relative; /* required for positioning */
}

/* Tooltip bubble */
.has-tooltip[data-tooltip]::after{
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translate(-50%, 4px);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  font-size: 11px;
  font-weight: 650;
  padding: 6px 8px;
  border-radius: 10px;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(15,23,42,0.96);
  color: var(--text-dark);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  transition: opacity 120ms ease, transform 120ms ease;
  z-index: 200;
}
body.light .has-tooltip[data-tooltip]::after{
  background: #ffffff;
  color: var(--text-light);
  box-shadow: 0 10px 24px rgba(0,0,0,0.18);
}

/* Tooltip caret */
.has-tooltip[data-tooltip]::before{
  content: "";
  position: absolute;
  bottom: calc(100% + 3px);
  left: 50%;
  width: 8px;
  height: 8px;
  transform: translate(-50%, 0) rotate(225deg);
  background: rgba(15,23,42,0.96);
  border-left: 1px solid rgba(148,163,184,0.55);
  border-top: 1px solid rgba(148,163,184,0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
  z-index: 199;
}
body.light .has-tooltip[data-tooltip]::before{ background: #ffffff; }

/* Show on hover + keyboard focus */
.has-tooltip:hover::after,
.has-tooltip:focus-visible::after{
  opacity: 1;
  transform: translate(-50%, 0);
}
.has-tooltip:hover::before,
.has-tooltip:focus-visible::before{
  opacity: 1;
}

/* Accessible focus ring */
.has-tooltip:focus-visible{
  outline: none;
  box-shadow: 0 0 0 2px rgba(5,150,105,0.25);
}

/* (Legacy) trash button style — kept as-is */
.trash-chat-btn{
  border: none;
  background: transparent;
  margin-left: auto;
  color: #ef4444; /* red */
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 8px;
  display: inline-flex;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}
.trash-chat-btn:hover{
  background: rgba(239,68,68,0.12);
  color: #dc2626;
}
body.light .trash-chat-btn:hover{ background: rgba(239,68,68,0.16); }


/* ==========================================================================
   12) MODALS (CONFIRM/ALERT)
   ========================================================================== */
.modal-overlay{
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(0,0,0,0.55);
  z-index: 10000;
}
.modal-overlay.show{ display: flex; }

.modal{
  width: min(520px, 100%);
  border-radius: 14px;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(15,23,42,0.98);
  color: var(--text-dark);
  box-shadow: 0 18px 60px rgba(0,0,0,0.55);
  overflow: hidden;
}
body.light .modal{
  background: #ffffff;
  color: var(--text-light);
  box-shadow: 0 18px 60px rgba(0,0,0,0.25);
}

.modal-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(148,163,184,0.35);
}

.modal-title{
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.01em;
}

.modal-close{
  border: none;
  background: transparent;
  color: inherit;
  font-size: 18px;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 8px;
}
.modal-close:hover{ background: rgba(148,163,184,0.18); }

.modal-message{
  padding: 14px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted-dark);
}
body.light .modal-message{ color: var(--muted-light); }

.modal-actions{
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 14px 14px;
}

.modal-btn{
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(148,163,184,0.12);
  color: inherit;
}
body.light .modal-btn{ background: rgba(148,163,184,0.18); }
.modal-btn:hover{ background: rgba(148,163,184,0.22); }

.modal-btn.primary{
  border-color: rgba(5,150,105,0.75);
  background: rgba(5,150,105,0.18);
}
.modal-btn.primary:hover{ background: rgba(5,150,105,0.26); }

.modal-btn.danger{
  border-color: rgba(239,68,68,0.75);
  background: rgba(239,68,68,0.14);
}
.modal-btn.danger:hover{ background: rgba(239,68,68,0.22); }


/* ==========================================================================
   13) FEEDBACK UI (COMMENT ICON + FEEDBACK MODAL + TOAST)
   ========================================================================== */
/* Comment icon button (per message / reference) */
.comment-btn{
  border: none;
  background: transparent;
  padding: 4px 6px;
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #6b7280;
}
.comment-btn:hover{
  background: rgba(148,163,184,0.18);
  color: #111827;
}
body.light .comment-btn:hover{
  background: rgba(148,163,184,0.28);
  color: #020617;
}
.comment-btn svg{ display: block; }

/* Place comment icon in bot message rows */
.msg-actions{
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* Feedback modal overlay */
.fb-overlay{
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(0,0,0,0.55);
  z-index: 12000;
}
.fb-overlay.show{ display: flex; }

.fb-modal{
  width: min(560px, 100%);
  border-radius: 14px;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(15,23,42,0.98);
  color: var(--text-dark);
  box-shadow: 0 18px 60px rgba(0,0,0,0.55);
  overflow: hidden;
}
body.light .fb-modal{
  background: #ffffff;
  color: var(--text-light);
  box-shadow: 0 18px 60px rgba(0,0,0,0.25);
}

.fb-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(148,163,184,0.35);
}
.fb-title{ font-weight: 800; font-size: 14px; }

.fb-close{
  border: none;
  background: transparent;
  color: inherit;
  font-size: 18px;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 8px;
}
.fb-close:hover{ background: rgba(148,163,184,0.18); }

.fb-body{ padding: 14px; }

.fb-meta{
  font-size: 11px;
  color: var(--muted-dark);
  margin-bottom: 10px;
  line-height: 1.35;
}
body.light .fb-meta{ color: var(--muted-light); }

.fb-grid{
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.fb-field{
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
}
.fb-field span{ font-weight: 700; }

.fb-field input,
.fb-field textarea{
  border-radius: 10px;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(148,163,184,0.10);
  color: inherit;
  padding: 10px 10px;
  font-size: 13px;
  outline: none;
}
body.light .fb-field input,
body.light .fb-field textarea{
  background: rgba(148,163,184,0.16);
}

.fb-field input:focus,
.fb-field textarea:focus{
  border-color: rgba(5,150,105,0.75);
  box-shadow: 0 0 0 2px rgba(5,150,105,0.20);
}

.fb-field-full{ grid-column: 1 / -1; }
.fb-field textarea{ resize: vertical; }

.fb-actions{
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 14px 14px;
  border-top: 1px solid rgba(148,163,184,0.35);
}

.fb-btn{
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(148,163,184,0.12);
  color: inherit;
}
body.light .fb-btn{ background: rgba(148,163,184,0.18); }

.fb-btn.primary{
  border-color: rgba(5,150,105,0.75);
  background: rgba(5,150,105,0.18);
}
.fb-btn.primary:hover{ background: rgba(5,150,105,0.26); }

/* Thanks toast */
.fb-toast{
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(255,255,255,0.92);
  color: #020617;
  box-shadow: 0 10px 24px rgba(0,0,0,0.18);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
  z-index: 13000;
}
.fb-toast.show{
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}
.fb-check{
  color: #111827;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}


/* ==========================================================================
   14) REFERENCE + AB TEST LAYOUT 
   ========================================================================== */
/* These are your later overrides — kept and grouped here. */
.ref-card{
  box-sizing: border-box;
  overflow: hidden; /* prevents icon from spilling outside */
  padding: 14px;    /* increase internal spacing */
  border-radius: 14px;
}

.ref-header{
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-width: 0;     /* allows children to shrink */
}

.ref-title{
  flex: 1;
  min-width: 0;     /* enables ellipsis / wrap */
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap; /* remove if you prefer wrapping */
}

.ref-right{
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;   /* keep badge+icon inside */
}

.ref-snippet{
  font-size: 13px;  /* bump readability */
  line-height: 1.45;
}

/* Forces refs to start below first screen */
#chat-container{ min-height: 80vh; }

.comment-btn{ flex-shrink: 0; }

#references-container{
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

/* Sidebar open button (duplicated in your original; kept) */
.sidebar-open-btn{
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 99999; /* very high so it’s clickable */
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(15,23,42,0.95);
  color: var(--text-dark);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
body.light .sidebar-open-btn{
  background: #fff;
  color: var(--text-light);
}
body.sidebar-collapsed .sidebar-open-btn{
  display: inline-flex;
}

/* A/B response layout */
.ab-wrap{
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  width: 100%;
}

.ab-panel{
  border: 1px solid rgba(148,163,184,0.45);
  border-radius: 12px;
  padding: 10px 12px;
  background: rgba(148,163,184,0.08);
}

.ab-label{
  font-size: 11px;
  font-weight: 800;
  opacity: 0.85;
  margin-bottom: 6px;
}

/* A/B panel header/footer rows */
.ab-head{
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.ab-actions{
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ab-footer{
  margin-top: 10px;
  display: flex;
  justify-content: flex-end;
}

/* Select button (match your UI vibe) */
.ab-select-btn{
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid rgba(148,163,184,0.55);
  background: rgba(148,163,184,0.12);
  color: inherit;
}

.ab-select-btn{ background: rgba(148,163,184,0.18); }

/* hover */
.ab-select-btn:hover{
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Selected state */
.ab-panel.selected{
  border-color: rgba(5,150,105,0.85);
  background: rgba(5,150,105,0.12);
}
.ab-panel.selected .ab-select-btn{
  border-color: rgba(5,150,105,0.85);
  background: rgba(5,150,105,0.18);
}
.ab-panel.selected .ab-select-btn:hover{
  background: rgba(5,150,105,0.24);
}

/* Fullscreen overlay, does not capture clicks */
#click-distort{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
}

/* The circular "lens" we spawn */
.click-lens{
  position: absolute;
  width: 180px;
  height: 180px;
  margin-left: -90px;
  margin-top: -90px;
  border-radius: 999px;
  overflow: hidden;

  /* Frosted lens look (optional but helps sell distortion) */
  backdrop-filter: blur(0.5px);
  -webkit-backdrop-filter: blur(0.5px);

  /* The actual distortion */
  filter: url(#sot-displace);

  /* Fade + scale */
  transform: scale(0.95);
  opacity: 0;
  transition: opacity 160ms ease, transform 220ms ease;
}

/* Visible state */
.click-lens.on{
  opacity: 1;
  transform: scale(1);
}

/* Shockwave ring */
.click-ring{
  position: absolute;
  width: 180px;
  height: 180px;
  margin-left: -90px;
  margin-top: -90px;
  border-radius: 999px;
  border: 2px solid currentColor;
  opacity: 0.05;
  transform: scale(0.6);
  transition: transform 420ms ease, opacity 420ms ease;
}

/* Expand ring */
.click-ring.on{
  transform: scale(1.25);
  opacity: 0;
}


/* ==========================================================================
   15) MOBILE HEADER + OVERLAY BASE (NON-MEDIA-QUERY PARTS)
   ========================================================================== */
/* Mobile */
.mobile-header{ display: none; }


/* ==========================================================================
   16) MEDIA QUERIES (ALL GROUPED HERE)
   ========================================================================== */

/* Sidebar collapse button hidden below this width */
@media (max-width: 900px){
  #sidebar .sidebar-collapse-btn{ display: none; }
  .sidebar-collapse-btn{ display:none; }
}

/* Feedback grid single column */
@media (max-width: 520px){
  .fb-grid{ grid-template-columns: 1fr; }
}

/* References grid columns */
@media (min-width: 640px){
  .references-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1024px){
  .references-grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* A/B wrap becomes 2 columns on wider screens */
@media (min-width: 860px){
  .ab-wrap{ grid-template-columns: 1fr 1fr; }

  #references-container{
    grid-template-columns: 1fr 1fr; /* two columns */
    gap: 14px;
  }
}

/* Mobile sidebar + overlay behavior */
@media (max-width: 768px){
  .sidebar{
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-100%);
    transition: transform 0.2s ease-out;
    z-index: 30;
  }

  .sidebar.visible{ transform: translateX(0); }

  .main{ position: relative; }

  .mobile-header{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    background: rgba(0,0,0,0.9);
    border-bottom: 1px solid rgba(148,163,184,0.4);
  }

  body.light .mobile-header{
    background: rgba(255,255,255,0.96);
    border-bottom-color: rgba(148,163,184,0.7);
  }

  .mobile-title{
    font-size: 14px;
    font-weight: 600;
  }

  .mobile-menu-btn{
    background: transparent;
    border: none;
    padding: 6px;
    cursor: pointer;
  }

  .overlay{
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 25;
    display: none;
  }

  .overlay.visible{ display: block; }
}