/* Chat-with-Oden — terminal-dialogue aesthetic. 13th distinct
 * surface. Black background with green phosphor, Crimson Pro for
 * Oden's prose (legibility), IBM Plex Mono for user input and
 * metadata, Major Mono Display for the marquee. */

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

:root {
  --bg:     #0a0a0a;
  --panel:  #121414;
  --panel-2:#181b1b;
  --rule:   #2a2f2f;
  --you:    #b9c0c8;     /* user — dim white */
  --oden:   #6dd49a;     /* oden — phosphor green */
  --dim:    #5e6a52;
  --warn:   #d6b85a;
  --bad:    #c4391a;
  --accent: #6dd49a;
}

body {
  background: var(--bg);
  color: var(--you);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14.5px;
  min-height: 100vh;
  background-image:
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(109,212,154,.03) 23px 24px),
    radial-gradient(ellipse at 50% 0%, rgba(109,212,154,.06) 0%, transparent 60%);
}

.strip {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: .7rem 1.4rem;
  border-bottom: 1px solid var(--rule);
  background: linear-gradient(180deg, #0e0f0f 0%, var(--bg) 100%);
  position: sticky; top: 0; z-index: 10;
}
.brand {
  font: 400 1.45rem 'Major Mono Display', monospace;
  color: var(--oden); letter-spacing: .2em;
  margin-right: .65rem;
}
.brand-sub { color: var(--dim); font-style: italic; letter-spacing: .04em; font-size: .82rem; }
.strip-l { display: flex; align-items: baseline; gap: .65rem; }
.strip-r { display: flex; align-items: baseline; gap: .55rem; }
.stamp {
  font: 400 .8rem 'IBM Plex Mono', monospace;
  color: var(--oden); letter-spacing: .08em;
  border: 1px solid var(--oden); padding: .1rem .4rem;
}
.stamp.warn { color: var(--warn); border-color: var(--warn); }
.stamp.bad  { color: var(--bad);  border-color: var(--bad); }
.sep { color: var(--rule); }
.link { color: var(--oden); text-decoration: none; font-size: .8rem; letter-spacing: .08em; border-bottom: 1px dotted transparent; }
.link:hover { border-bottom-color: var(--oden); }

.dialogue {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
  display: flex; flex-direction: column;
  min-height: calc(100vh - 130px);
}

.intro p {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--oden);
  padding: .8rem 1rem;
  color: var(--you);
  font: 400 .9rem 'IBM Plex Mono', monospace;
  margin: 0 0 1.5rem;
}

.thread {
  list-style: none; margin: 0; padding: 0;
  flex: 1;
  display: flex; flex-direction: column; gap: .8rem;
  margin-bottom: 1rem;
}
.turn {
  background: var(--panel);
  border: 1px solid var(--rule);
  padding: .65rem .9rem;
  position: relative;
}
.turn.user {
  background: var(--panel-2);
  border-left: 3px solid var(--you);
}
.turn.oden {
  background: var(--panel);
  border-left: 3px solid var(--oden);
}
.turn.pending { border-left-color: var(--warn); }
.turn.failed  { border-left-color: var(--bad); }
.turn .who {
  font: 700 .7rem 'IBM Plex Mono', monospace;
  letter-spacing: .14em;
  color: var(--dim);
  margin-bottom: .3rem;
  display: flex; justify-content: space-between;
}
.turn.user .who   { color: var(--you); }
.turn.oden .who   { color: var(--oden); }
.turn.pending .who { color: var(--warn); }
.turn.failed .who  { color: var(--bad); }
.turn .body {
  color: var(--you);
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: 'Crimson Pro', serif;
  font-size: 1.08rem;
  line-height: 1.55;
}
.turn.user .body { font-family: 'IBM Plex Mono', monospace; font-size: .95rem; }
.turn .meta {
  color: var(--dim);
  font: 400 .72rem 'IBM Plex Mono', monospace;
  margin-top: .4rem;
  letter-spacing: .04em;
}

.prompt-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .55rem;
  align-items: stretch;
  padding: .8rem 0 1.6rem;
  position: sticky; bottom: 0; background: linear-gradient(180deg, transparent 0%, var(--bg) 30%);
}
#prompt-q {
  background: var(--panel);
  border: 1px solid var(--rule);
  padding: .55rem .7rem;
  color: var(--you);
  font: 400 .95rem 'IBM Plex Mono', monospace;
  resize: vertical;
}
#prompt-q:focus { outline: none; border-color: var(--oden); box-shadow: 0 0 0 2px rgba(109,212,154,.18); }
.prompt-actions { display: flex; flex-direction: column; gap: .35rem; }
#prompt-label {
  background: var(--panel); color: var(--you);
  border: 1px solid var(--rule);
  font: 400 .82rem 'IBM Plex Mono', monospace;
  padding: .35rem .55rem;
}
.primary {
  background: var(--oden); color: #0a0a0a;
  border: 1px solid var(--oden);
  font: 700 .8rem 'IBM Plex Mono', monospace;
  letter-spacing: .12em;
  padding: .55rem 1.1rem;
  cursor: pointer;
  box-shadow: 0 2px 0 #3fa978;
  transition: background .12s;
}
.primary:hover { background: #3fa978; color: #fff; }
.primary:disabled { opacity: .5; cursor: not-allowed; }

.foot {
  text-align: center;
  padding: 1.2rem;
  color: var(--dim);
  font-size: .72rem;
  letter-spacing: .04em;
}

/* Subtle "thinking" pulse on pending turns */
@keyframes pulse-think {
  0%, 100% { opacity: 1; }
  50%      { opacity: .55; }
}
.turn.pending { animation: pulse-think 2s ease-in-out infinite; }