:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  --page: #f5f5f7;
  --surface: rgba(255, 255, 255, .88);
  --surface-solid: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --faint: #86868b;
  --line: rgba(0, 0, 0, .075);
  --field: #f7f7f8;
  --field-line: #e5e5e7;
  --accent: #3659d9;
  --accent-hover: #2749c8;
  --accent-soft: rgba(54, 89, 217, .09);
  --success: #24834a;
  --error: #c23b3b;
  --mark-line: #ffffff;
  --shadow: 0 22px 70px rgba(25, 32, 55, .075), 0 2px 8px rgba(25, 32, 55, .035);
}
* { box-sizing: border-box; }
html { min-height: 100%; background: var(--page); }
body {
  min-height: 100vh;
  margin: 0;
  padding:
    max(22px, env(safe-area-inset-top))
    max(22px, env(safe-area-inset-right))
    max(22px, env(safe-area-inset-bottom))
    max(22px, env(safe-area-inset-left));
  color: var(--text);
  background:
    radial-gradient(ellipse at 50% 4%, rgba(255,255,255,.95), transparent 57%),
    var(--page);
}
button, textarea { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }
.page-shell {
  width: min(100%, 1120px);
  min-height: calc(100vh - 44px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}
.topbar {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: inherit;
  text-decoration: none;
}
.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: #fff;
  background: linear-gradient(145deg, #6178ed, #3454d2);
  box-shadow: 0 4px 12px rgba(54, 89, 217, .2), inset 0 1px 0 rgba(255,255,255,.25);
}
.brand-mark svg { width: 23px; height: 23px; }
.brand-name { font-size: 15px; font-weight: 720; letter-spacing: -.035em; }
.brand-name span { margin-left: 3px; font-weight: 500; color: var(--muted); }
.topbar-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--faint);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .14em;
}
.topbar-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #56a875;
  box-shadow: 0 0 0 3px rgba(86,168,117,.12);
}
.main-content {
  width: min(100%, 650px);
  margin: auto;
  padding: clamp(54px, 9vh, 104px) 0 clamp(42px, 7vh, 72px);
  align-self: center;
}
.intro { margin: 0 0 34px 3px; }
.eyebrow {
  margin: 0 0 16px;
  color: var(--faint);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .17em;
}
h1 {
  margin: 0;
  font-size: clamp(34px, 6vw, 48px);
  font-weight: 730;
  letter-spacing: -.065em;
  line-height: 1.14;
}
h1 span { color: var(--muted); font-weight: 520; }
.description {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
  letter-spacing: -.015em;
}
.mobile-break { display: none; }
.composer-card {
  padding: 22px;
  border: 1px solid rgba(255,255,255,.82);
  border-radius: 23px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px) saturate(1.35);
  -webkit-backdrop-filter: blur(24px) saturate(1.35);
}
.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 1px 1px 18px;
  border-bottom: 1px solid var(--line);
}
.destination {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}
.destination-icon {
  width: 37px;
  height: 37px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: #455dbe;
  background: var(--accent-soft);
}
.destination-icon svg { width: 20px; height: 20px; }
.destination strong, .destination small { display: block; }
.destination strong { font-size: 13px; font-weight: 700; }
.destination small { margin-top: 3px; color: var(--faint); font-size: 10px; }
.config-indicator {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(125,125,125,.045);
  font-size: 10px;
  font-weight: 600;
  white-space: nowrap;
}
.config-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #a1a1a6;
}
.config-indicator[data-state="checking"] .config-dot { animation: breathe 1.5s ease-in-out infinite; }
.config-indicator[data-state="ready"] { color: var(--success); background: rgba(36,131,74,.055); border-color: rgba(36,131,74,.13); }
.config-indicator[data-state="ready"] .config-dot { background: #35a461; }
.config-indicator[data-state="error"] { color: var(--error); background: rgba(194,59,59,.05); border-color: rgba(194,59,59,.13); }
.config-indicator[data-state="error"] .config-dot { background: #d45454; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
textarea {
  display: block;
  width: 100%;
  min-height: 220px;
  max-height: 420px;
  margin: 0;
  padding: 22px 2px 16px;
  resize: vertical;
  border: 0;
  outline: 0;
  border-radius: 0;
  color: var(--text);
  background: transparent;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: -.012em;
  caret-color: var(--accent);
}
textarea::placeholder { color: #a1a1a6; opacity: 1; }
textarea:focus-visible { outline: 0; }
.composer-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0 17px;
  border-bottom: 1px solid var(--line);
}
.counter-group { display: inline-flex; align-items: baseline; gap: 5px; }
.counter { color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.counter.near-limit { color: #b36a22; }
.counter-caption { color: var(--faint); font-size: 10px; }
.keyboard-hint {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--faint);
  font-size: 10px;
}
kbd {
  min-width: 19px;
  height: 19px;
  display: inline-grid;
  place-items: center;
  padding: 0 4px;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
  background: rgba(125,125,125,.055);
  font-family: inherit;
  font-size: 10px;
}
.action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 17px;
}
.status {
  flex: 1 1 auto;
  min-height: 18px;
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}
.status.success { color: var(--success); }
.status.error { color: var(--error); }
.status.info { color: var(--muted); }
button {
  min-width: 174px;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  padding: 0 17px;
  border: 0;
  border-radius: 12px;
  color: #fff;
  background: #242832;
  box-shadow: 0 2px 4px rgba(0,0,0,.12), inset 0 1px 0 rgba(255,255,255,.13);
  font-size: 12px;
  font-weight: 690;
  letter-spacing: .005em;
  cursor: pointer;
  transition: background .18s ease, transform .18s ease, box-shadow .18s ease, opacity .18s ease;
}
button:hover:not(:disabled) { background: #3b4354; box-shadow: 0 5px 14px rgba(23,31,51,.16), inset 0 1px 0 rgba(255,255,255,.13); }
button:active:not(:disabled) { transform: scale(.985); }
button:focus-visible { outline: 3px solid rgba(54,89,217,.28); outline-offset: 3px; }
button:disabled { cursor: not-allowed; opacity: .42; box-shadow: none; }
.button-arrow { width: 17px; height: 17px; transition: transform .18s ease; }
button:hover:not(:disabled) .button-arrow { transform: translateX(3px); }
button[data-sending="true"] .button-arrow { animation: nudge 1s ease-in-out infinite; }
.trust-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 19px;
  color: var(--faint);
  font-size: 10px;
  line-height: 1.6;
  text-align: center;
}
.shield-icon { width: 16px; height: 16px; display: inline-flex; color: #7a9b87; }
.shield-icon svg { width: 16px; height: 16px; }
.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 20px 0 3px;
  color: var(--faint);
  font-size: 9px;
  letter-spacing: .06em;
}
.footer span:first-child { font-weight: 750; letter-spacing: .13em; }
.footer-separator { opacity: .5; }
@keyframes breathe { 50% { opacity: .35; transform: scale(.8); } }
@keyframes nudge { 50% { transform: translateX(2px); } }
@media (max-width: 620px) {
  body {
    padding:
      max(17px, env(safe-area-inset-top))
      max(17px, env(safe-area-inset-right))
      max(17px, env(safe-area-inset-bottom))
      max(17px, env(safe-area-inset-left));
  }
  .page-shell { min-height: calc(100svh - 34px - env(safe-area-inset-top) - env(safe-area-inset-bottom)); }
  .topbar { min-height: 42px; }
  .brand-mark { width: 32px; height: 32px; border-radius: 10px; }
  .topbar-note { font-size: 8px; letter-spacing: .1em; }
  .main-content { padding: clamp(48px, 9vh, 78px) 0 44px; }
  .intro { margin: 0 0 27px 2px; }
  .eyebrow { margin-bottom: 13px; font-size: 9px; }
  h1 { font-size: clamp(34px, 9vw, 42px); }
  .description { margin-top: 13px; font-size: 13px; }
  .mobile-break { display: initial; }
  .composer-card { padding: 17px; border-radius: 19px; }
  .card-topline { padding-bottom: 15px; }
  .destination-icon { width: 34px; height: 34px; border-radius: 11px; }
  .destination small { max-width: 175px; font-size: 9px; }
  .config-indicator { padding: 6px 8px; font-size: 9px; }
  textarea { min-height: 210px; padding-top: 18px; font-size: 16px; }
  .composer-controls { padding: 10px 0 14px; }
  .action-row { display: flex; flex-direction: column-reverse; align-items: stretch; gap: 10px; padding-top: 14px; }
  .status { min-height: 16px; font-size: 10px; }
  button { width: 100%; min-height: 49px; border-radius: 12px; }
  .trust-row { align-items: flex-start; font-size: 9px; }
  .footer { padding-top: 10px; }
}
@media (max-width: 370px) {
  body { padding-left: 13px; padding-right: 13px; }
  .topbar-note { font-size: 7px; gap: 6px; }
  .composer-card { padding: 14px; }
  .destination small { max-width: 145px; }
  .keyboard-hint { font-size: 9px; }
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #101114;
    --surface: rgba(29, 30, 34, .88);
    --surface-solid: #1d1e22;
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --faint: #85858b;
    --line: rgba(255,255,255,.09);
    --field: #17181c;
    --field-line: #35363b;
    --accent: #91a5ff;
    --accent-hover: #a5b5ff;
    --accent-soft: rgba(125,150,255,.13);
    --success: #80c99c;
    --error: #f18b8b;
    --mark-line: #ffffff;
    --shadow: 0 22px 70px rgba(0,0,0,.28), 0 2px 8px rgba(0,0,0,.14);
  }
  body { background: radial-gradient(ellipse at 50% 0%, rgba(67,73,100,.22), transparent 57%), var(--page); }
  .composer-card { border-color: rgba(255,255,255,.08); }
  .destination-icon { color: #a9b8ff; }
  button { color: #11131a; background: #e7eaf4; box-shadow: 0 2px 6px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.75); }
  button:hover:not(:disabled) { color: #090b10; background: #fff; }
  button:disabled { opacity: .35; }
  kbd { background: rgba(255,255,255,.045); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}