/* Jarvis — midnight-indigo, mono-precise, Apple-grade. No gradients, no shadows. */
:root {
  --bg: #0A0E1A;
  --surface: #111828;
  --surface-2: #182136;
  --line: #232E4A;
  --text: #EDF0F9;
  --muted: #9AA5BE;
  --dim: #5D6885;
  --accent: #7C8CFF;
  --accent-ink: #0A0E1A;
  --ok: #3DD68C;
  --warn: #F5B84B;
  --err: #F26D6D;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
}

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

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

.mono { font-family: var(--mono); }
.dim { color: var(--dim); }
.hidden { display: none !important; }

.screen {
  min-height: 100dvh;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

/* ---------- login ---------- */
#screen-login { justify-content: center; align-items: center; padding: 24px; }

.login-card { width: 100%; max-width: 340px; }

.brand { margin-bottom: 20px; }
.prompt {
  font-family: var(--mono);
  font-size: 44px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -2px;
}
.prompt::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 40px;
  margin-left: 6px;
  vertical-align: -6px;
  background: var(--accent);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.wordmark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: 6px;
  color: var(--text);
  margin-bottom: 6px;
}

.kicker { color: var(--accent); font-size: 11px; letter-spacing: 3px; margin-bottom: 36px; }

#login-form label { display: block; color: var(--muted); font-size: 11px; letter-spacing: 2px; margin-bottom: 8px; }

#pw {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 17px;
  letter-spacing: 2px;
  padding: 16px 18px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
#pw:focus { border-color: var(--accent); }

.btn {
  width: 100%;
  margin-top: 14px;
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 12px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 3px;
  padding: 16px;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}
.btn:active { opacity: 0.82; }

.err { color: var(--err); font-size: 11px; letter-spacing: 1px; margin-top: 12px; min-height: 14px; }

.foot { color: var(--dim); font-size: 10px; letter-spacing: 2px; margin-top: 44px; text-align: center; }

/* ---------- chat chrome ---------- */
#screen-chat { height: 100dvh; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  padding-top: calc(12px + env(safe-area-inset-top));
  border-bottom: 1px solid var(--line);
  flex: 0 0 auto;
}
.topbar-id { display: flex; align-items: center; gap: 10px; }
.wordmark-sm { font-size: 13px; letter-spacing: 4px; color: var(--text); }
.topbar-meta { display: flex; align-items: center; gap: 8px; font-size: 10px; letter-spacing: 1px; color: var(--muted); }

.dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--dim);
  flex: 0 0 auto;
}
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--warn); }
.dot.err { background: var(--err); }

.messages {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 18px 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  -webkit-overflow-scrolling: touch;
}

.msg { max-width: 86%; animation: rise .22s ease-out; }
@keyframes rise { from { opacity: 0; transform: translateY(4px); } }

.msg.user { align-self: flex-end; }
.msg.assistant { align-self: flex-start; }

.bubble {
  padding: 11px 14px;
  border-radius: 14px;
  font-size: 15.5px;
  line-height: 1.5;
  overflow-wrap: break-word;
  word-break: break-word;
}
.msg.user .bubble {
  background: var(--accent);
  color: var(--accent-ink);
  border-bottom-right-radius: 4px;
}
.msg.assistant .bubble {
  background: var(--surface);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
}
.msg-time { font-size: 10px; color: var(--dim); margin-top: 4px; letter-spacing: 1px; }
.msg.user .msg-time { text-align: right; }

/* markdown inside assistant bubbles */
.bubble p { margin: 0 0 8px; }
.bubble p:last-child { margin-bottom: 0; }
.bubble h1, .bubble h2, .bubble h3, .bubble h4, .bubble h5, .bubble h6 {
  font-family: var(--mono);
  margin: 10px 0 6px;
  line-height: 1.3;
}
.bubble h1 { font-size: 17px; } .bubble h2 { font-size: 16px; } .bubble h3 { font-size: 15px; }
.bubble h4, .bubble h5, .bubble h6 { font-size: 14px; }
.bubble ul, .bubble ol { margin: 0 0 8px; padding-left: 20px; }
.bubble li { margin-bottom: 3px; }
.bubble code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
}
.msg.user .bubble code { background: rgba(10,14,26,.25); border-color: transparent; color: var(--text); }
.bubble pre {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  margin: 8px 0;
  overflow-x: auto;
  font-size: 12.5px;
  line-height: 1.45;
}
.bubble pre code { background: none; border: 0; padding: 0; font-size: 12.5px; }
.bubble a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.bubble blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 10px;
  margin: 8px 0;
  color: var(--muted);
}
.bubble hr { border: 0; border-top: 1px solid var(--line); margin: 10px 0; }
.msg-err { color: var(--err); font-family: var(--mono); font-size: 11px; letter-spacing: 1px; }
.typing { color: var(--dim); }

/* ---------- presets + composer ---------- */
.presets {
  flex: 0 0 auto;
  display: flex;
  gap: 8px;
  padding: 8px 16px;
  overflow-x: auto;
  scrollbar-width: none;
}
.presets::-webkit-scrollbar { display: none; }

.chip {
  flex: 0 0 auto;
  background: var(--surface);
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  padding: 9px 16px;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}
.chip:active { border-color: var(--accent); color: var(--accent); }

.composer {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: var(--bg);
}

#input {
  flex: 1 1 auto;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 16px;
  padding: 13px 18px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
#input:focus { border-color: var(--accent); }
#input::placeholder { color: var(--dim); }

.send {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  margin: 0;
  padding: 0;
  border-radius: 50%;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.send:disabled { opacity: .4; }

@media (min-width: 720px) {
  .screen { border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
}