/* Thank You Card — shared styles.
   Palette: indigo ink (藍) on manuscript-paper off-white, marigold for the parent side. */

:root {
  --paper:     #F5F4EE;
  --paper-2:   #FBFAF6;
  --card:      #FFFFFE;
  --ink:       #171C2B;
  --ink-2:     #4A5164;
  --ink-3:     #7C8295;
  --ink-blue:  #26418A;
  --ai-soft:   #A6B5D8;
  --guide:     #C9D6CE;
  --marigold:  #C87A10;
  --rule:      #DAD7CD;
  --danger:    #A3382B;
  --ok:        #2F6B4F;

  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Songti SC", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:    #111524;
    --paper-2:  #161B2C;
    --card:     #1A2033;
    --ink:      #E9E8E1;
    --ink-2:    #AAAFC0;
    --ink-3:    #767C90;
    --ink-blue: #97ACE4;
    --ai-soft:  #3C4E80;
    --guide:    #3B4A41;
    --marigold: #E4A63D;
    --rule:     #2A3048;
    --danger:   #E08074;
    --ok:       #7FC0A0;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 34rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}
.wrap.wide { max-width: 62rem; }

/* ---- type ---- */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0;
}
h1 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  font-weight: 400;
  line-height: 1.2;
  margin: 0;
  text-wrap: balance;
}
h2 {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.35;
  margin: 0;
}
h3 { font-size: 0.9rem; font-weight: 650; margin: 0; }
p { margin: 0; }
.lede { color: var(--ink-2); }
.fine { font-size: 0.82rem; color: var(--ink-3); line-height: 1.55; }
.err { font-size: 0.85rem; color: var(--danger); }
.ok { color: var(--ok); }

/* ---- controls ---- */
.field { display: flex; flex-direction: column; gap: 0.4rem; }
label {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
input[type="text"], input[type="email"], input[type="url"], textarea {
  font-family: var(--sans);
  font-size: 1.05rem;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-bottom: 2px solid var(--ai-soft);
  border-radius: 2px;
  padding: 0.6rem 0.7rem;
  width: 100%;
}
input:focus-visible, textarea:focus-visible, canvas:focus-visible {
  outline: 2px solid var(--ink-blue);
  outline-offset: 2px;
}
textarea { font-size: 0.92rem; line-height: 1.5; resize: vertical; }

button {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink-3);
  border-radius: 2px;
  padding: 0.6rem 1rem;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
button:hover:not(:disabled) {
  background: var(--ink-blue);
  border-color: var(--ink-blue);
  color: var(--paper-2);
}
button:focus-visible { outline: 2px solid var(--ink-blue); outline-offset: 2px; }
button:disabled { opacity: 0.4; cursor: not-allowed; }
button.primary {
  border-color: var(--ink-blue);
  color: var(--ink-blue);
  font-weight: 650;
  padding: 0.75rem 1.25rem;
}
button.small { padding: 0.35rem 0.6rem; font-size: 0.6rem; }
.row { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }

/* An anchor that needs to read as a button. */
a.btnlink {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-blue);
  border: 1px solid var(--ink-blue);
  border-radius: 2px;
  padding: 0.6rem 1rem;
  transition: background 0.15s ease, color 0.15s ease;
}
a.btnlink:hover { background: var(--ink-blue); color: var(--paper-2); }
a.btnlink:focus-visible { outline: 2px solid var(--ink-blue); outline-offset: 2px; }
a.btnlink[hidden] { display: none; }

/* ---- message chips ---- */
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  font-family: var(--serif);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: none;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--rule);
  color: var(--ink-2);
  background: var(--paper-2);
}
.chip:hover:not(:disabled) { background: var(--ai-soft); border-color: var(--ai-soft); color: var(--ink); }
.chip[aria-pressed="true"] {
  background: transparent;
  color: var(--marigold);
  border-color: var(--marigold);
  box-shadow: inset 0 -2px 0 var(--marigold);
}
.chip[aria-pressed="true"]:hover { background: transparent; color: var(--marigold); }

/* ---- the card ---- */
.card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 3px;
  box-shadow: 0 1px 0 var(--rule), 0 14px 40px -28px rgba(20, 28, 60, 0.5);
  overflow: hidden;
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 1.4rem 1.3rem 0;
}
.card-body { padding: 1rem 1.3rem 1.1rem; display: flex; flex-direction: column; gap: 1rem; }

.message { display: flex; flex-direction: column; gap: 0.15rem; align-items: center; }
.message .jp {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 6vw, 2rem);
  letter-spacing: 0.1em;
  line-height: 1.3;
}
.message .en { font-size: 0.9rem; color: var(--ink-2); }
.message .rom {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.from { display: flex; flex-direction: column; gap: 0.5rem; }
.from-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.from-label::before, .from-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}

canvas.trace {
  display: block;
  width: 100%;
  height: 8.5rem;
  touch-action: none;
  border-radius: 2px;
}
canvas.trace.interactive { cursor: crosshair; }

.trace-hint {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.76rem;
  color: var(--ink-3);
}
.reading {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: center;
}
.card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--rule);
  margin: 0 1.3rem;
  padding: 0.8rem 0 1.1rem;
  font-size: 0.7rem;
  color: var(--ink-3);
}
.card-foot strong { color: var(--marigold); }
.card-foot .mark { font-family: var(--serif); color: var(--marigold); font-size: 0.95rem; }

/* ---- parent side ---- */
.parent-band {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  background: var(--marigold);
  color: #FFFDF7;
  padding: 0.55rem 1.3rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.parent-band .ja {
  font-family: var(--sans);
  letter-spacing: 0.1em;
  text-transform: none;
  font-size: 0.72rem;
}
.parent-body {
  background: var(--paper-2);
  padding: 1.2rem 1.3rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.parent-title { font-family: var(--serif); font-size: 1.1rem; line-height: 1.4; }
.parent-title .jp { display: block; font-size: 0.85rem; color: var(--ink-3); margin-top: 0.2rem; }
.kv { display: flex; flex-direction: column; gap: 0.6rem; margin: 0; padding: 0; list-style: none; }
.kv li { display: flex; gap: 0.8rem; font-size: 0.84rem; line-height: 1.5; color: var(--ink-2); }
.kv .k {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-blue);
  flex: 0 0 5.5rem;
  padding-top: 0.3rem;
}
.qr-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  border-top: 1px solid var(--rule);
  padding-top: 1rem;
}
.qr-box {
  width: 6rem;
  height: 6rem;
  flex: none;
  background: #FFFFFF;
  border: 1px solid var(--rule);
  border-radius: 2px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.qr-box canvas, .qr-box img { display: block; width: 100%; height: 100%; }
.qr-box.empty {
  background: transparent;
  border-style: dashed;
  border-color: var(--ai-soft);
  font-family: var(--mono);
  font-size: 0.52rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  text-align: center;
  padding: 0.3rem;
}

/* ---- steps ---- */
.step { display: flex; flex-direction: column; gap: 0.8rem; }
.step[hidden] { display: none; }

.share {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--marigold);
  border-radius: 2px;
  padding: 1rem 1.1rem;
}
.share code {
  font-family: var(--mono);
  font-size: 0.82rem;
  word-break: break-all;
  color: var(--ink);
}

/* ---- dashboard ---- */
.panel {
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-2);
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem; align-items: start; }

.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; min-width: 46rem; font-size: 0.84rem; }
th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.6rem 0.75rem 0.6rem 0;
  border-bottom: 1px solid var(--rule);
}
th {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 400;
  border-bottom-color: var(--ink-3);
  white-space: nowrap;
}
td.kana { font-family: var(--serif); font-size: 1rem; white-space: nowrap; }
td.mono { font-family: var(--mono); font-size: 0.75rem; white-space: nowrap; font-variant-numeric: tabular-nums; }
td.actions { white-space: nowrap; }
td.actions button { margin-right: 0.35rem; }

.pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  border: 1px solid currentColor;
  white-space: nowrap;
}
.pill.sent { color: var(--ok); }
.pill.pending { color: var(--marigold); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.82rem;
  padding: 0.6rem 1rem;
  border-radius: 3px;
  box-shadow: 0 8px 24px -12px rgba(0, 0, 0, 0.5);
  z-index: 20;
}
.toast[hidden] { display: none; }

footer {
  border-top: 1px solid var(--rule);
  padding-top: 1rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
}
a { color: var(--ink-blue); }