:root {
  --paper: #f4f1ea;
  --ink: #1e2623;
  --muted: #66645c;
  --card: #ffffff;
  --sea: #295248;
  --sea-text: #f6f3ec;
  --line: rgba(30, 38, 35, 0.1);
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171918;
    --ink: #f0eee8;
    --muted: #ada89c;
    --card: #2a2c2b;
    --sea: #739e8f;
    --sea-text: #14211d;
    --line: rgba(255, 255, 255, 0.1);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html, body, #app {
  margin: 0;
  height: 100%;
  background: var(--paper);
  color: var(--ink);
}

p { margin: 0; }

button, input {
  font: inherit;
  color: inherit;
}

button { cursor: pointer; }

.screen {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));
}

.gate {
  max-width: 420px;
  margin: auto;
  width: 100%;
}

h1 {
  font-size: 40px;
  letter-spacing: -0.04em;
  margin: 12px 0;
}

.muted { color: var(--muted); }

.card, .field, .bubble, .held, .row {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.card { padding: 16px; }

label { display: block; font-size: 14px; margin-bottom: 6px; }

input[type="password"], input[type="text"], input[type="tel"], textarea {
  width: 100%;
  border: 0;
  background: transparent;
  outline: none;
  resize: none;
}

.field { padding: 12px 14px; margin: 10px 0 14px; }

.primary, .text-button {
  border: 0;
  background: transparent;
  color: var(--sea);
  font-weight: 650;
  padding: 0;
}

.primary {
  background: var(--sea);
  color: var(--sea-text);
  border-radius: 999px;
  padding: 10px 16px;
  display: inline-block;
  text-decoration: none;
  text-align: center;
}

.stack { display: flex; flex-direction: column; gap: 10px; }

.qr {
  width: min(100%, 280px);
  border-radius: 16px;
  background: white;
  padding: 12px;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
}

.who { font-weight: 700; }
.sub { color: var(--muted); font-size: 13px; }

.thread {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 0 12px;
}

.bubble, .held {
  max-width: min(78%, 420px);
  padding: 10px 14px;
}

.bubble.out {
  align-self: flex-end;
  background: var(--sea);
  color: var(--sea-text);
  border: 0;
}

.bubble.in, .held { align-self: flex-start; }

.meta {
  display: flex;
  gap: 6px;
  margin-top: 4px;
  font-size: 11px;
  opacity: 0.75;
}

.held {
  border-style: dashed;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
}

.composer {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  padding-top: 8px;
}

.composer .field { flex: 1; margin: 0; border-radius: 20px; }

.send {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: var(--sea);
  color: var(--sea-text);
  font-weight: 700;
}

.send:disabled { background: var(--muted); }

.row {
  width: 100%;
  text-align: left;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.menu {
  position: relative;
}

.menu-panel {
  position: absolute;
  right: 0;
  top: 36px;
  width: min(280px, 80vw);
  padding: 12px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 2;
}

.error {
  color: #8a3d32;
  font-size: 14px;
}

.icon-button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--card);
}