/* =====================================
   Brighter Professional Refresh — FULL styles.css
   - Slightly brighter dark theme
   - Professional polish (shadows, borders, hover states)
   - Accessible focus states
   - Chat layout fix (composer pinned)
   - Scrollbars on tall panels (~99vh)
   - Emoji arrow fix (pure CSS triangle)
===================================== */

/* =====================================
   Global / Base
===================================== */
:root {
  color-scheme: dark;
  /* Core palette */
  --ink: #f0f4ff;
  --bg: #0f1730;                 /* brighter than original */
  --panel: #151d3a;              /* brighter panel */
  --panel-soft: rgba(255, 255, 255, 0.06);   /* was 0.035 */
  --panel-soft-border: rgba(255, 255, 255, 0.12);
  --panel-blue: rgba(100, 130, 255, 0.09);
  --panel-blue-border: rgba(100, 130, 255, 0.24);
  --border: #263258;             /* lighter borders for definition */
  --border-2: #2f3c67;
  --ink-dim: #d6def8;
  --cta: #89a9ff;
  --cta-2: #6f91ff;
  --btn: #2a3a69;
  --btn-hover: #33467d;
  --chip-bg: #21305a;
  --chip-brd: #324374;
  --chip-on: #245a38;
  --chip-on-brd: #31764b;
  --flow-accent: #6a8bff;

  /* Elevation & rings */
  --shadow-1: 0 4px 20px rgba(0,0,0,.35);
  --shadow-2: 0 10px 30px rgba(0,0,0,.35);
  --ring: 0 0 0 2px rgba(120, 150, 255, 0.35), 0 0 1px 1px rgba(0,0,0,.25);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 20% 0%, #121a38 0%, var(--bg) 60%), var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

/* Center the whole app with ~8% margins each side */
.app-shell {
  width: 84vw;          /* was 80vw */
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* =====================================
   Header
===================================== */
.app-header {
  display: flex;
  align-items: center;
  padding: 14px 0;              /* +2px breathing room */
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(115%) blur(2px);
}
.app-header .actions {
  margin-left: auto;
  display: flex;
  gap: 10px;
  align-items: center;
}

/* =====================================
   Buttons & Pills
===================================== */
.btn.small,
.pill {
  display: inline-block;
  border-radius: 10px;
  transition: transform .08s ease, filter .12s ease, box-shadow .12s ease;
}

.btn.small {
  padding: 7px 12px;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(0,0,0,.06)), var(--btn);
  color: #d8e6ff;
  border: 1px solid var(--border-2);
  box-shadow: var(--shadow-1);
}
.btn.small:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn.small:active { transform: translateY(0); }

.pill.primary {
  background: linear-gradient(180deg, #9bb6ff, var(--cta));
  color: #0b1020;
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,.18);
  cursor: pointer;
  box-shadow: var(--shadow-1);
}
.pill.primary:hover { filter: brightness(1.04); }
.pill.primary:active { filter: brightness(0.98); }

.pill.secondary {
  background: var(--btn);
  color: #d8e6ff;
  border: 1px solid var(--border-2);
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: var(--shadow-1);
}

.pill.small { padding: 5px 9px; font-size: 12px; }

/* Focus states for a11y */
.btn.small:focus-visible,
.pill:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: none;
  box-shadow: var(--ring);
}

/* Model select */
.modelpick select {
  background: #0f1940;
  color: #fff;
  border: 1px solid var(--border-2);
  border-radius: 10px;
  padding: 10px;
}

/* =====================================
   Stage Layout (History | Chat | Flow)
===================================== */
.stage {
  display: flex;
  gap: 18px;
  padding: 14px 0;
  height: auto;
}

/* Base panel styles + scroll control */
.panel {
  padding: 14px;
  background: transparent;
  max-height: 80vh;            /* constrain height to viewport */
  overflow: auto;              /* scroll when too tall */
  scrollbar-width: thin;
  scrollbar-color: var(--panel-blue-border) var(--panel);
}
/* Custom scrollbar (WebKit) */
.panel::-webkit-scrollbar { width: 8px; }
.panel::-webkit-scrollbar-track { background: var(--panel); }
.panel::-webkit-scrollbar-thumb {
  background-color: var(--panel-blue-border);
  border-radius: 6px;
  border: 2px solid var(--panel);
}
.panel::-webkit-scrollbar-thumb:hover { background-color: var(--cta-2); }

/* Columns */
.panel.history-rail {
  width: 300px;                /* was 280px */
  border-right: 1px solid var(--border);
  background: var(--panel-blue);
  border-color: var(--panel-blue-border);
  border-radius: 12px;
  padding: 16px;
  backdrop-filter: blur(6px) saturate(110%);
  box-shadow: var(--shadow-1);
}
.panel.chatpanel {
  flex: 1;
  min-width: 560px;           /* was 520px */
  background: var(--panel-soft);
  border: 1px solid var(--panel-soft-border);
  border-radius: 12px;
  backdrop-filter: blur(6px) saturate(110%);
  padding: 16px;
  box-shadow: var(--shadow-2);
  display: flex;               /* chat layout fix */
  flex-direction: column;
  max-height: 80vh;
  overflow: auto;
}
.panel.flowpanel {
  width: 300px;                /* was 280px */
  border-left: 1px solid var(--border);
  background: var(--panel-blue);
  border-color: var(--panel-blue-border);
  border-radius: 12px;
  padding: 16px;
  backdrop-filter: blur(6px) saturate(110%);
  box-shadow: var(--shadow-1);
}

/* =====================================
   Conversation History Rail
===================================== */
.hist-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.conv-list {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(0,0,0,.05)), #0f1940;
  overflow: auto;
  max-height: 62vh;
  padding: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--panel-blue-border) var(--panel);
}
.conv-empty { opacity: .9; padding: 6px; }

.conv-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px;
  border-radius: 10px;
  transition: background .12s ease, border-color .12s ease;
}
.conv-item + .conv-item { border-top: 1px solid var(--border); }
.conv-item:hover { background: rgba(255,255,255,.04); }
.conv-item.active { background: #121b42; }

.conv-link { color: var(--ink); }
.conv-title { font-weight: 650; letter-spacing: .2px; }

.conv-del {
  margin-left: 10px;
  background: #2f3b6a;
  border: 1px solid var(--border-2);
  color: #e6eeff;
  border-radius: 8px;
  width: 28px;
  height: 28px;
  cursor: pointer;
}

/* =====================================
   Chat Panel
===================================== */
.panel.chatpanel .header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.brand { font-weight: 800; letter-spacing: .3px; }

.history {
  flex: 1 1 auto;            /* grow to fill panel */
  min-height: 0;             /* allow scrolling area to shrink as needed */
  overflow: auto;
  background: transparent;
  border-radius: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--panel-blue-border) var(--panel);
}
/* History scrollbar (WebKit) */
.history::-webkit-scrollbar { width: 8px; }
.history::-webkit-scrollbar-track { background: var(--panel); }
.history::-webkit-scrollbar-thumb {
  background-color: var(--panel-blue-border);
  border-radius: 6px;
  border: 2px solid var(--panel);
}
.history::-webkit-scrollbar-thumb:hover { background-color: var(--cta-2); }

/* Messages */
.msg {
  display: flex;
  margin: 10px 0;
}
.msg.user { justify-content: flex-end; }
.msg.assistant { justify-content: flex-start; }

.msg .bubble {
  max-width: 75%;
  background: #151d3a;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  white-space: pre-wrap;
  box-shadow: var(--shadow-1);
}
.msg.user .bubble { background: #121a3a; }
.msg.assistant .bubble { background: #151d3a; }

/* Composer */
.composer { margin-top: 12px; flex: 0 0 auto; }

.input-wrap {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.input-wrap textarea {
  width: 100%;
  min-height: 80px;
  background: #0f1940;              /* was #0c1430 */
  border: 1px solid var(--border-2);
  color: #fff;
  border-radius: 12px;
  padding: 12px;
  resize: vertical;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
}

.btn.attach,
.btn.send {
  position: static;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border-2);
  cursor: pointer;
}

.btn.attach { background: var(--btn); }
.btn.attach:hover { filter: brightness(1.06); }

.btn.send { background: var(--cta); color: #0b1020; font-weight: 700; }
.btn.send:hover { filter: brightness(1.05); }

.file-badges { margin-top: 6px; }

/* generic chip (also reused elsewhere) */
.chip {
  display: inline-block;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 13px;
  line-height: 1.1;
  background: var(--btn);
  color: #d8e6ff;
  border: 1px solid rgba(255, 255, 255, 0.16);
  margin: 6px 6px 0 0;
  transition: filter .12s ease, background-color .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.chip--sm { padding: 3px 8px; font-size: 12px; }
.chip--alert { background: #b44; color: #ffecec; }

/* Hide native file input (paperclip only) */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Drag state */
#dropzone.drag textarea { border-color: var(--cta); box-shadow: var(--ring); }

/* =====================================
   Process Flow
===================================== */
.flow-head .sub { opacity: .9; font-size: 12px; }

.flow-graph {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 6px 0;
}

/* Nodes */
.flowpanel .node {
  width: 100%;
  background: #151d3a;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  margin: 0;
  box-shadow: var(--shadow-1);
}
.flowpanel .node .badge.small {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--btn);
  color: #d8e6ff;
}

/* Node state accents */
.flowpanel .node.ok .badge { background: #1f8a52 !important; color: #eafff2 !important; }
.flowpanel .node.err .badge { background: #c55353 !important; color: #ffecec !important; }
.flowpanel .node.pending .badge { background: #a59a63 !important; color: #fffbe6 !important; }
.flowpanel .node.skipped .badge { background: #404866 !important; color: #d6def8 !important; }

/* Unfilled badge variant for "Blocked: ..." text */
.badge.no-fill,
.flowpanel .node .badge.no-fill {
  background: transparent !important;
  border: none !important;
  color: var(--ink) !important;
  padding: 0 !important;
}

/* Pipes & arrows (CSS triangle avoids mojibake) */
.pipe,
.dlp-pipe {
  position: relative;
  width: 2px;
  height: 12px;
  background: var(--flow-accent);
  margin: 8px 0;
}
.pipe::after,
.dlp-pipe::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -8px;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid var(--flow-accent);
}

/* Foot messages */
.flow-foot { font-size: 12px; opacity: .95; margin-top: 8px; }
.dlp-error { color: #ff8080; }

/* =====================================
   Toggles & Profile Pills
===================================== */
.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 0;
}
.toggle input {
  width: 44px; height: 24px;
  appearance: none;
  background: #40507a;
  border-radius: 999px;
  position: relative;
  outline: none;
  cursor: pointer;
  border: 1px solid var(--border-2);
}
.toggle input:checked { background: var(--flow-accent); }
.toggle input::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  transition: left .2s ease;
}
.toggle input:checked::after { left: 23px; }

/* Toggle label main/sub lines */
.toggle-label .title {
  display: block;
  font-size: 13px;
  line-height: 1.4;
  opacity: 0.95;
}
.toggle-label .sub {
  display: block;
  font-size: 12px;
  line-height: 1.3;
  color: var(--ink-dim);
  opacity: 0.9;
  margin-top: 2px;
}

/* ===== Unified chip styles for Pre-defined + Custom profiles ===== */
.prof-toggle,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  margin: 4px 6px 0 0;
  border-radius: 999px;
  border: 1px solid var(--chip-brd);
  background: var(--chip-bg);
  color: #d8e6ff;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  transition: filter .15s ease, background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
  box-shadow: 0 1px 0 rgba(255,255,255,.06), 0 6px 16px rgba(0,0,0,.25);
}
.prof-toggle:hover,
.chip:hover { filter: brightness(1.06); }

/* ON / OFF states (toggled via classes) */
.prof-toggle.on,
.chip.on {
  background: var(--chip-on);
  border-color: var(--chip-on-brd);
  color: #e9fff0;
}
.prof-toggle.off,
.chip.off {
  background: #1a264a;
  border-color: #2a3b6a;
  color: #cfe0ff;
  opacity: .95;
}

/* Small & alert variants shared */
.prof-toggle.chip--sm,
.chip.chip--sm {
  padding: 5px 9px;
  font-size: 11px;
}
.prof-toggle.chip--alert,
.chip.chip--alert {
  background: #4a1f1f;
  border-color: #6b2f2f;
  color: #ffd6d6;
}

/* Closable chips (used by Custom Profiles) */
.prof-toggle.chip--closable,
.chip.chip--closable {
  position: relative;
  padding-right: 22px;
}
.prof-toggle.chip--closable .chip-x,
.chip.chip--closable .chip-x {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  color: inherit;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  opacity: .85;
  padding: 0;
}
.prof-toggle.chip--closable .chip-x:hover,
.chip.chip--closable .chip-x:hover { opacity: 1; }

/* =====================================
   Modal (Settings)
===================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  display: none;
  align-items: center;
  justify-content: center;
}
.modal {
  width: 540px;
  max-width: 92vw;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  color: var(--ink);
  box-shadow: var(--shadow-2);
}
.modal h3 { margin: 0 0 10px; font-size: 18px; }
.modal form label {
  display: block;
  margin: 8px 0 6px;
  font-size: 13px;
  opacity: .95;
}
.modal form input {
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border-2);
  background: #0f1940;
  color: #fff;
}
.modal .row { display: flex; gap: 12px; flex-wrap: wrap; }
.modal .row > div { flex: 1; min-width: 220px; }
.modal .bar { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }

/* =====================================
   Login Page
===================================== */
body.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  margin: 0;
}
.login-box {
  background: var(--panel);
  padding: 26px 24px;
  border-radius: 16px;
  border: 1px solid var(--border);
  width: 320px;                 /* was 300px */
  box-shadow: var(--shadow-2);
}
.login-box h1 { text-align: center; font-size: 18px; margin: 0 0 16px; }
.login-box label { display: block; margin-bottom: 6px; font-size: 14px; }
.login-box input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-2);
  background: #0f1940;
  color: #fff;
}
.login-box input:focus { outline: none; box-shadow: var(--ring); }
.login-box .btn {
  width: 100%;
  margin-top: 12px;
  padding: 12px 0;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 10px;
  background: linear-gradient(180deg, #9bb6ff, var(--cta));
  color: #0b1020;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-1);
}
.login-box .btn:hover { background: linear-gradient(180deg, #a6bfff, var(--cta)); }
.login-box .error { color: #ff8a8a; text-align: center; margin-bottom: 10px; }

/* =====================================
   Generic helpers
===================================== */
.sub {
  display: block;
  font-size: 12px;
  line-height: 1.35;
  color: var(--ink-dim);
  opacity: 0.9;
  margin-top: 2px;
}

/* =====================================
   Reduced Motion
===================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .001ms !important; }
}

/* =====================================
   Responsive tweaks
===================================== */
@media (max-width: 1200px) {
  .app-shell { width: 94vw; }
  .panel.chatpanel { min-width: 0; }
  .msg .bubble { max-width: 85%; }
}

@media (max-width: 900px) {
  .stage { flex-direction: column; }
  .panel.history-rail, .panel.flowpanel { width: 100%; }
  .flow-graph { align-items: stretch; }
}

    .footnote { margin-top: 6px; font-size: 12px; opacity: .8; }