/* Fieldwork — expedition-instrument aesthetic.
   Volcanic basalt ground, bone ink, signal-orange for anything the trip touches.
   The map is the subject; the chrome is a survey instrument bolted beside it. */

:root {
  --basalt:     #14110E;
  --basalt-2:   #1A1613;
  --basalt-3:   #221C17;
  --rule:       #302820;
  --rule-soft:  #251F19;

  --bone:       #EDE6DA;
  --bone-dim:   #A99C8A;
  --bone-faint: #6E6355;

  --lava:       #E4622A;
  --lava-lit:   #F07A3C;
  --sea:        #4FA3A5;
  --sea-lit:    #7FD4D6;
  --sulphur:    #D9A441;

  --serif: 'Instrument Serif', Georgia, serif;
  --sans:  'Archivo', -apple-system, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, monospace;

  --panel-w: 25rem;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--basalt);
  color: var(--bone);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

/* Film grain over everything — stops the flat panels reading as plastic. */
.grain {
  position: fixed;
  inset: 0;
  z-index: 9;
  pointer-events: none;
  opacity: 0.32;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

.shell {
  display: grid;
  grid-template-columns: 1fr var(--panel-w);
  height: 100dvh;
}

/* ---------------------------------------------------------------- map stage */

.stage { position: relative; overflow: hidden; }
#map { position: absolute; inset: 0; background: var(--basalt); }

/* Vignette so the panel edge doesn't cut the map dead. */
.stage::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 90% at 35% 40%, transparent 45%, rgba(10, 8, 6, 0.55) 100%);
}

.masthead {
  position: absolute;
  top: 1.75rem;
  left: 2rem;
  z-index: 3;
  pointer-events: none;
  animation: rise 0.9s var(--ease) both;
}

.masthead h1 {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 4.4vw, 3.9rem);
  font-weight: 400;
  line-height: 0.88;
  letter-spacing: -0.02em;
  color: var(--bone);
  text-shadow: 0 2px 24px rgba(10, 8, 6, 0.85);
}
.masthead h1 em { font-style: italic; color: var(--lava-lit); }

.coordline {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.7rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  color: var(--bone-dim);
  text-shadow: 0 1px 12px rgba(10, 8, 6, 0.9);
}
.tick {
  width: 5px; height: 5px;
  background: var(--lava);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(228, 98, 42, 0.18);
  animation: pulse 2.8s ease-in-out infinite;
}

/* Decorative survey scale, bottom-left of the map. */
.scalebar {
  position: absolute;
  left: 2rem; bottom: 1.6rem;
  z-index: 3;
  display: flex;
  pointer-events: none;
  animation: rise 0.9s 0.25s var(--ease) both;
}
.scalebar span {
  width: 26px; height: 5px;
  border: 1px solid rgba(237, 230, 218, 0.35);
  border-right: none;
}
.scalebar span:nth-child(odd) { background: rgba(237, 230, 218, 0.28); }
.scalebar span:last-child { border-right: 1px solid rgba(237, 230, 218, 0.35); }

/* ------------------------------------------------------------------- panel */

.panel {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--basalt-2);
  border-left: 1px solid var(--rule);
  /* Contour lines, faint — the panel reads as vellum over the basalt. */
  background-image:
    repeating-linear-gradient(
      -14deg,
      transparent 0 22px,
      rgba(237, 230, 218, 0.016) 22px 23px
    );
}

.panel-head {
  padding: 1.9rem 1.6rem 1.3rem;
  border-bottom: 1px solid var(--rule-soft);
  animation: rise 0.8s 0.1s var(--ease) both;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lava);
  margin-bottom: 0.6rem;
}

.blurb {
  font-size: 0.83rem;
  line-height: 1.55;
  color: var(--bone-dim);
  max-width: 34ch;
}

/* --------------------------------------------------------------- transcript */

.log {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 1.3rem 1.6rem;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}
.log::-webkit-scrollbar { width: 7px; }
.log::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 4px; }

.seed { animation: rise 0.8s 0.2s var(--ease) both; }
.seed-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bone-faint);
  margin-bottom: 0.75rem;
}
.seed-btn {
  display: block;
  width: 100%;
  margin-bottom: 0.5rem;
  padding: 0.7rem 0.85rem;
  text-align: left;
  font-family: inherit;
  font-size: 0.79rem;
  line-height: 1.45;
  color: var(--bone-dim);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 3px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s, transform 0.2s;
}
.seed-btn:hover {
  color: var(--bone);
  border-color: var(--lava);
  background: rgba(228, 98, 42, 0.06);
  transform: translateX(3px);
}

.msg { margin-bottom: 1.15rem; animation: rise 0.45s var(--ease) both; }

.msg.user {
  padding: 0.7rem 0.9rem;
  background: var(--basalt-3);
  border-left: 2px solid var(--lava);
  border-radius: 0 3px 3px 0;
  font-size: 0.84rem;
  line-height: 1.5;
}

.msg.agent {
  font-size: 0.87rem;
  line-height: 1.65;
  color: var(--bone);
  white-space: pre-wrap;
  word-wrap: break-word;
}
.msg.agent strong { color: var(--sulphur); font-weight: 600; }

.msg.error {
  font-size: 0.8rem;
  line-height: 1.5;
  color: #E88A6A;
  border-left: 2px solid #A03A1E;
  padding-left: 0.75rem;
}

/* Reasoning — present but recessive; it is context, not the answer. */
.think {
  font-size: 0.76rem;
  line-height: 1.55;
  color: var(--bone-faint);
  font-style: italic;
  border-left: 1px solid var(--rule);
  padding-left: 0.75rem;
  margin-bottom: 1rem;
  max-height: 7rem;
  overflow: hidden;
  position: relative;
}
.think::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2rem;
  background: linear-gradient(transparent, var(--basalt-2));
}

/* Tool activity reads as instrument telemetry. */
.tool {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.42rem 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--bone-dim);
  border-bottom: 1px dashed var(--rule-soft);
  animation: slide 0.35s var(--ease) both;
}
.tool .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--sulphur);
  animation: pulse 1.1s ease-in-out infinite;
}
.tool.done .dot { background: var(--sea); animation: none; }
.tool.failed .dot { background: #C4553A; animation: none; }
.tool .name { color: var(--bone); }
.tool .arg {
  color: var(--bone-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --------------------------------------------------------------- itinerary */

.itinerary {
  padding: 1.1rem 1.6rem;
  border-top: 1px solid var(--rule);
  max-height: 34vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}

.leg {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  width: 100%;
  padding: 0.6rem 0.2rem;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid var(--rule-soft);
  color: var(--bone-dim);
  font-family: inherit;
  cursor: pointer;
  transition: color 0.2s, padding-left 0.2s;
}
.leg:hover, .leg.active { color: var(--bone); padding-left: 0.55rem; }
.leg.active .leg-idx { color: var(--lava-lit); border-color: var(--lava); }

.leg-idx {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--bone-faint);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.12rem 0.32rem;
  flex-shrink: 0;
  transition: color 0.2s, border-color 0.2s;
}
.leg-body { flex: 1; min-width: 0; }
.leg-name { font-size: 0.8rem; line-height: 1.35; }
.leg-stat {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--bone-faint);
  margin-top: 0.2rem;
  letter-spacing: 0.04em;
}

/* --------------------------------------------------------------- composer */

.composer {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  padding: 1rem 1.6rem 0.55rem;
  border-top: 1px solid var(--rule);
  background: var(--basalt-2);
}

#input {
  flex: 1;
  max-height: 8rem;
  padding: 0.62rem 0.75rem;
  font-family: inherit;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--bone);
  background: var(--basalt);
  border: 1px solid var(--rule);
  border-radius: 3px;
  resize: none;
  transition: border-color 0.2s;
}
#input::placeholder { color: var(--bone-faint); }
#input:focus { outline: none; border-color: var(--lava); }

#send {
  display: grid;
  place-items: center;
  width: 2.3rem; height: 2.3rem;
  flex-shrink: 0;
  color: var(--basalt);
  background: var(--lava);
  border: none;
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
#send:hover:not(:disabled) { background: var(--lava-lit); transform: translateX(2px); }
#send:disabled { background: var(--rule); color: var(--bone-faint); cursor: not-allowed; transform: none; }

.status {
  padding: 0 1.6rem 0.9rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--bone-faint);
  min-height: 1.4rem;
}
.status.busy { color: var(--sulphur); }

/* ------------------------------------------------------------- maplibre trim */

.maplibregl-ctrl-attrib {
  background: rgba(20, 17, 14, 0.82) !important;
  font-family: var(--mono) !important;
  font-size: 0.58rem !important;
}
.maplibregl-ctrl-attrib a { color: var(--bone-faint) !important; }
.maplibregl-ctrl-group {
  background: var(--basalt-2) !important;
  border: 1px solid var(--rule) !important;
  box-shadow: none !important;
}
.maplibregl-ctrl-group button + button { border-top: 1px solid var(--rule) !important; }
.maplibregl-ctrl-group button span { filter: invert(0.85) sepia(0.2); }

/* -------------------------------------------------------------- animation */

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}
@keyframes slide {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: none; }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ------------------------------------------------------------------ mobile */

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; grid-template-rows: 42dvh 1fr; }
  .panel { border-left: none; border-top: 1px solid var(--rule); }
  .masthead { top: 1.1rem; left: 1.2rem; }
  .scalebar { display: none; }
  .panel-head { padding: 1.2rem 1.2rem 1rem; }
  .log, .itinerary { padding-left: 1.2rem; padding-right: 1.2rem; }
  .composer { padding: 0.8rem 1.2rem 0.5rem; }
  .status { padding-left: 1.2rem; }
  .itinerary { max-height: 26vh; }
}