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

:root {
  --page: #f6f2e9;
  --page-accent: #ebe4d6;
  --surface: #fffdf8;
  --surface-soft: #faf6ed;
  --border: #ded5c5;
  --ink: #292720;
  --ink-soft: #706b60;
  --accent: #a74735;
  --accent-hover: #8d392a;
  --female: #a34f61;
  --male: #406786;
  --focus: #236f8c;
  --radius: 22px;
}

body {
  background:
    radial-gradient(circle at 12% 10%, rgba(197, 154, 91, 0.12), transparent 26rem),
    radial-gradient(circle at 88% 88%, rgba(110, 139, 118, 0.12), transparent 28rem),
    var(--page);
  color: var(--ink);
  font-family: 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', 'Yu Gothic', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px 28px;
}

header {
  max-width: 780px;
  min-width: 0;
  text-align: center;
  width: 100%;
  margin-bottom: 28px;
}

.site-label {
  color: var(--accent);
  font-family: Georgia, 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  margin-bottom: 10px;
}

header h1 {
  font-family: 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-wrap: balance;
}

.headline-part { display: inline-block; }

.header-sub {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.7;
}

main { width: 100%; }

.card {
  background: rgba(255, 253, 248, 0.96);
  border: 1px solid rgba(222, 213, 197, 0.86);
  border-radius: var(--radius);
  box-shadow: 0 20px 55px rgba(74, 63, 44, 0.1);
  padding: 38px 36px 30px;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.name-output {
  position: relative;
  text-align: center;
  padding: 8px 12px 24px;
}

.name-output::after {
  content: '';
  display: block;
  width: 44px;
  height: 1px;
  background: var(--border);
  margin: 25px auto 0;
}

.result-kicker {
  color: var(--ink-soft);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  margin-bottom: 13px;
}

.gender-badge {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.gender-badge:empty { display: none; }
.gender-badge.female { background: #f7e7e8; color: var(--female); }
.gender-badge.male { background: #e5eef4; color: var(--male); }

.name-block {
  font-family: 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  font-size: clamp(2.5rem, 9vw, 3.65rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.12em;
  text-wrap: balance;
}

.name-reading {
  color: var(--ink-soft);
  font-size: 0.93rem;
  letter-spacing: 0.17em;
  margin-top: 12px;
}

.name-romaji {
  color: #948d80;
  font-family: Georgia, serif;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  margin-top: 6px;
}

.error {
  color: var(--accent);
  font-size: 0.9rem;
  padding: 28px 0 16px;
}

button {
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font: inherit;
  font-size: 0.87rem;
  font-weight: 700;
  padding: 10px 18px;
  transition: background-color 0.15s, border-color 0.15s, transform 0.15s;
  white-space: nowrap;
}

button:hover { transform: translateY(-1px); }
button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 30%, transparent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 18px rgba(167, 71, 53, 0.18);
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-big {
  width: 100%;
  padding: 15px;
  font-size: 1rem;
  letter-spacing: 0.06em;
}

.linked-entry {
  display: grid;
  gap: 10px;
  text-align: center;
}

.linked-entry[hidden] { display: none; }

.linked-entry p {
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.6;
}

.creative-prompt {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 12px;
  padding-top: 20px;
  text-align: center;
}

.creative-prompt h2 {
  color: var(--ink-soft);
  font-family: 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.6;
}

.creative-prompt-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.creative-prompt-option {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 8px 10px;
}

.creative-prompt-option:hover,
.creative-prompt-option[aria-pressed="true"] {
  background: #f5e8e1;
  border-color: var(--accent);
  color: var(--accent);
}

.creative-prompt-output {
  color: var(--ink);
  font-family: 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  font-size: 0.88rem;
  line-height: 1.7;
  min-height: 1.7em;
}

.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink-soft);
}

.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.btn-copy {
  font-size: 0.74rem;
  margin-left: auto;
  padding: 7px 11px;
}

.btn-copy:disabled { cursor: not-allowed; opacity: 0.5; transform: none; }

.share-section {
  display: grid;
  gap: 9px;
  text-align: center;
}

.share-section[hidden] { display: none; }

.share-options {
  display: flex;
  gap: 8px;
}

.share-option {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 11px;
  color: var(--ink-soft);
  display: inline-flex;
  flex: 1;
  font-size: 0.78rem;
  font-weight: 700;
  justify-content: center;
  min-height: 40px;
  padding: 8px 12px;
  text-decoration: none;
}

.share-option:hover { border-color: var(--accent); color: var(--accent); }

.share-hint {
  color: var(--ink-soft);
  font-size: 0.68rem;
  line-height: 1.55;
}

.uuid-section {
  border-top: 1px solid var(--border);
}

.uuid-section summary {
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  list-style: none;
  padding: 15px 4px 10px;
  text-align: center;
  user-select: none;
}

.uuid-section summary::after {
  content: ' ＋';
  color: var(--accent);
}

.uuid-section[open] summary::after { content: ' −'; }
.uuid-section summary:hover { color: var(--accent); }

.uuid-body {
  background: var(--surface-soft);
  border: 1px solid var(--page-accent);
  border-radius: 14px;
  margin-top: 5px;
  padding: 16px;
}

.uuid-label {
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}

.uuid-desc {
  color: var(--ink-soft);
  font-size: 0.76rem;
  line-height: 1.65;
  margin-top: 9px;
}

.uuid-body {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.uuid-desc { margin-top: 0; }

.uuid-caveat {
  color: var(--ink-soft);
  font-size: 0.72rem;
  line-height: 1.6;
}

.uuid-current {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
}

#uuid-display {
  color: var(--accent);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.76rem;
  overflow-wrap: anywhere;
}

.uuid-current .btn-copy { margin-left: auto; }

.input-row { display: flex; gap: 8px; }

#uuid-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--ink);
  flex: 1;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.78rem;
  min-width: 0;
  outline: none;
  padding: 10px 12px;
}

#uuid-input:focus { border-color: var(--focus); }
#generate-btn { background: var(--ink); color: #fff; }
#generate-btn:hover { background: #454139; }

footer {
  color: var(--ink-soft);
  font-size: 0.75rem;
  margin-top: 24px;
  text-align: center;
}

@media (max-width: 540px) {
  body { justify-content: flex-start; padding: 30px 16px 22px; }
  header { margin-bottom: 20px; }
  .header-sub { font-size: 0.84rem; }
  .card { border-radius: 18px; padding: 28px 20px 22px; }
  .name-output { padding-inline: 0; }
  .name-block { letter-spacing: 0.08em; }
  .input-row { flex-direction: column; }
  #generate-btn { width: 100%; }
  .creative-prompt-option { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  button { transition: none; }
}