/* Ambree for Alexa+: the voice page. Self-hosted fonts, no external requests.
   Tokens from the Ambree brand: paper, ink, the flame CTA, the evening dark mode,
   and the amber glint, which lives only inside the logo. */

@font-face {
  font-family: "Instrument Serif";
  src: url("/fonts/InstrumentSerif-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("/fonts/InstrumentSerif-Italic.ttf") format("truetype");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Sans";
  src: url("/fonts/InstrumentSans.ttf") format("truetype");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/IBMPlexMono-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f7f2e8;
  --paper-2: #efe7d6;
  --surface: #fffdf8;
  --ink: #10292b;
  --ink-2: #33494b;
  --ink-3: #536667;
  --line: #e4dbc9;
  --line-strong: #d6ccb8;
  --primary: #0f5257;
  --primary-soft: #e3eeec;
  --flame: #c2410c;
  --flame-deep: #a3360a;
  --on-flame: #ffffff;
  --logo-sun: #c9661a; /* the logo glint only, never text */
  --shadow: 0 1px 2px rgb(16 41 43 / 6%), 0 12px 32px -18px rgb(16 41 43 / 28%);
  --radius: 18px;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Evening. */
    --paper: #0b1a1c;
    --paper-2: #10292b;
    --surface: #132b2e;
    --ink: #f7f2e8;
    --ink-2: #d5cec0;
    --ink-3: #a7a295;
    --line: #1f3739;
    --line-strong: #2b4446;
    --primary: #8fd0cb;
    --primary-soft: #133a3c;
    --flame: #f08a5b;
    --flame-deep: #f39c74;
    --on-flame: #0b1a1c;
    --logo-sun: #f39350;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 14px 36px -20px rgb(0 0 0 / 70%);
    color-scheme: dark;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-underline-offset: 3px;
}

code {
  font-family: var(--mono);
  font-size: 0.86em;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}

[hidden] {
  display: none !important;
}

.nowrap {
  white-space: nowrap;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 10;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 999px;
  text-decoration: none;
}
.skip:focus {
  top: 12px;
}

/* Small uppercase labels: IBM Plex Mono. */
.label,
.tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 400;
  margin: 0;
}

/* ---- Masthead: the lockup over a thin horizon rule, like the logo's. ---- */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 20px 20px 16px;
  border-bottom: 2px solid var(--ink);
}
.brand {
  display: inline-flex;
  border-radius: 999px;
}
.brand img {
  display: block;
  height: 40px;
  width: auto;
}
.tag {
  text-align: right;
  color: var(--ink-2);
}

/* ---- Layout. ---- */
.layout {
  max-width: 1160px;
  margin: 0 auto;
  padding: 28px 20px 8px;
  display: grid;
  gap: 28px;
}
@media (min-width: 960px) {
  .layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 48px;
    padding-top: 40px;
  }
  .side {
    position: sticky;
    top: 24px;
    align-self: start;
  }
}

.stage {
  min-width: 0;
}

.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.2rem, 6.4vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 10px 0 12px;
}
.display em {
  font-style: italic;
  color: var(--primary);
}

.explainer {
  margin: 0 0 22px;
  color: var(--ink-2);
  max-width: 34rem;
}

/* ---- Trip card: a luggage-tag feel. ---- */
.trip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--primary);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.trip-line {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.2;
}

/* ---- The mic. ---- */
.voice {
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 34px 0 22px;
}
.mic {
  position: relative;
  display: grid;
  place-items: center;
  width: 132px;
  height: 132px;
  border: 0;
  border-radius: 50%;
  background: var(--flame);
  color: var(--on-flame);
  cursor: pointer;
  box-shadow: 0 18px 40px -18px rgb(194 65 12 / 70%), inset 0 -6px 14px rgb(0 0 0 / 12%);
  transition: transform 160ms ease, background-color 160ms ease;
  -webkit-tap-highlight-color: transparent;
}
.mic:hover {
  background: var(--flame-deep);
}
.mic:active {
  transform: scale(0.97);
}
.mic:focus-visible {
  outline-offset: 6px;
  border-radius: 50%;
}
.mic .ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 2px solid var(--flame);
  opacity: 0.22;
  pointer-events: none;
}
.mic .dots {
  display: none;
  gap: 6px;
}
.mic .dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.4;
}
.mic[data-state="listening"] .ring {
  opacity: 0.5;
  animation: breathe 1.7s ease-in-out infinite;
}
.mic[data-state="thinking"] {
  background: var(--ink);
  color: var(--paper);
}
.mic[data-state="thinking"] .mic-icon {
  display: none;
}
.mic[data-state="thinking"] .dots {
  display: flex;
}
.mic[data-state="thinking"] .dots span {
  animation: blink 1.2s ease-in-out infinite;
}
.mic[data-state="thinking"] .dots span:nth-child(2) {
  animation-delay: 0.15s;
}
.mic[data-state="thinking"] .dots span:nth-child(3) {
  animation-delay: 0.3s;
}
.mic[data-state="thinking"] .ring {
  border-color: var(--ink);
  border-style: dashed;
  opacity: 0.35;
  animation: spin 6s linear infinite;
}
.mic[data-state="speaking"] {
  background: var(--primary);
  color: var(--paper);
}
.mic[data-state="speaking"] .ring {
  border-color: var(--primary);
  opacity: 0.45;
  animation: breathe 1.1s ease-in-out infinite;
}

@keyframes breathe {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.12;
  }
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes blink {
  0%,
  100% {
    opacity: 0.25;
  }
  50% {
    opacity: 1;
  }
}

.mic-status {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  text-align: center;
}
.interim {
  margin: 0;
  min-height: 1.5em;
  max-width: 30rem;
  text-align: center;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--ink-2);
}
.no-voice {
  margin: 0;
  padding: 10px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  color: var(--ink-2);
  text-align: center;
}
.voice-toggle {
  margin-top: 4px;
  padding: 6px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-2);
  font: inherit;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}
.voice-toggle[aria-pressed="false"] {
  color: var(--ink-3);
  border-style: dashed;
}
.voice-toggle:hover {
  background: var(--paper-2);
}

/* ---- Typed input. ---- */
.ask {
  display: flex;
  gap: 8px;
  margin: 0 0 16px;
}
.ask input {
  flex: 1;
  min-width: 0;
  height: 50px;
  padding: 0 20px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
}
.ask input::placeholder {
  color: var(--ink-3);
}
.ask input:focus-visible {
  outline-offset: 2px;
  border-radius: 999px;
  border-color: var(--primary);
}
.send {
  flex: none;
  height: 50px;
  padding: 0 22px;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.send:hover {
  background: var(--primary);
}
.send:focus-visible {
  border-radius: 999px;
}
button:disabled,
input:disabled {
  opacity: 0.55;
  cursor: progress;
}

/* ---- Suggestion chips. ---- */
.chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 30px;
}
.chips .label {
  width: 100%;
  margin-bottom: 2px;
}
.chip {
  max-width: 100%;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-2);
  font: inherit;
  font-size: 0.9rem;
  line-height: 1.3;
  text-align: left;
  cursor: pointer;
  white-space: normal;
}
.chip:hover {
  background: var(--paper-2);
  color: var(--ink);
}
.chip:focus-visible {
  border-radius: 999px;
}

/* ---- Conversation: a travel journal. ---- */
.conversation {
  border-top: 1px solid var(--line-strong);
  padding-top: 18px;
}
.log {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.msg {
  display: grid;
  gap: 4px;
}
.who {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.msg-text {
  margin: 0;
  overflow-wrap: anywhere;
}
.msg-you .msg-text {
  color: var(--ink-2);
}
.msg-ambree {
  padding-left: 16px;
  border-left: 2px solid var(--primary);
}
.msg-ambree .msg-text {
  font-family: var(--serif);
  font-size: 1.42rem;
  line-height: 1.3;
  color: var(--ink);
}
.notice {
  margin: 4px 0 0;
  font-size: 0.86rem;
  color: var(--ink-3);
}
.empty {
  margin: 10px 0 0;
  color: var(--ink-3);
  font-size: 0.92rem;
}

/* ---- Under the hood. ---- */
.side {
  min-width: 0;
}
.hood {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 4px 18px 16px;
}
.hood summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0 10px;
  cursor: pointer;
  list-style: none;
}
.hood summary::-webkit-details-marker {
  display: none;
}
.hood summary::after {
  content: "+";
  font-family: var(--mono);
  color: var(--ink-3);
}
.hood[open] summary::after {
  content: "−";
}
.hood summary .label {
  color: var(--ink);
}
.hood-sub {
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--ink-3);
}
.hood-intro {
  margin: 0 0 14px;
  font-size: 0.88rem;
  color: var(--ink-2);
}
.hood-empty {
  margin: 0;
  padding: 14px;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  font-size: 0.88rem;
  color: var(--ink-3);
}
.turns {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.hood-turn {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
}
.hood-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.hood-n {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.badge {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border-radius: 999px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 70%;
}
.badge-llm {
  background: var(--primary);
  color: var(--paper);
}
.badge-offline {
  border: 1px solid var(--line-strong);
  color: var(--ink-2);
}
.hood-q {
  margin: 8px 0 6px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.3;
  overflow-wrap: anywhere;
}
.hood-notice,
.hood-none {
  margin: 0 0 6px;
  font-size: 0.82rem;
  color: var(--ink-3);
}
.calls {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.call {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--primary-soft);
}
.call-name {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--ink);
}
.call-meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-2);
  text-align: right;
}
.call-args {
  grid-column: 1 / -1;
  font-size: 0.74rem;
  color: var(--ink-2);
  overflow-wrap: break-word;
}
.call-failed {
  background: transparent;
  border: 1px dashed var(--flame);
}

/* ---- Footer. ---- */
.foot {
  max-width: 1160px;
  margin: 36px auto 0;
  padding: 18px 20px 32px;
  border-top: 1px solid var(--line-strong);
  font-size: 0.82rem;
  color: var(--ink-3);
}
.foot p {
  margin: 0 0 6px;
}

/* ---- Unlock page. ---- */
.unlock {
  max-width: 560px;
  margin: 0 auto;
  padding: 56px 20px 24px;
}
.unlock-form {
  margin-top: 8px;
}
.unlock-error {
  margin: 0;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--flame);
  color: var(--ink);
  background: var(--surface);
}

/* ---- Small screens. ---- */
@media (max-width: 480px) {
  .masthead {
    padding: 14px 16px 12px;
  }
  .brand img {
    height: 32px;
  }
  .tag {
    font-size: 0.64rem;
    letter-spacing: 0.1em;
  }
  .layout {
    padding: 22px 16px 4px;
  }
  .mic {
    width: 116px;
    height: 116px;
  }
  .send {
    padding: 0 18px;
  }
  .foot {
    padding: 16px 16px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}