:root {
  --bg: #0e0a1f;
  --bg2: #1a1336;
  --gold: #e8c66b;
  --gold-soft: #f3dfa0;
  --purple: #6d4aff;
  --text: #ece8ff;
  --muted: #a99fce;
  --card: rgba(28, 21, 54, 0.78);
  --border: rgba(232, 198, 107, 0.25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 50% -10%, #2a1d5e 0%, var(--bg2) 40%, var(--bg) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px 16px;
  position: relative;
  overflow-x: hidden;
}

.stars {
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #fff, transparent),
    radial-gradient(1px 1px at 70% 60%, #fff, transparent),
    radial-gradient(1px 1px at 40% 80%, #ffe9b0, transparent),
    radial-gradient(1px 1px at 90% 20%, #fff, transparent),
    radial-gradient(1px 1px at 10% 70%, #ffe9b0, transparent);
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 720px;
  background: var(--card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.hero { text-align: center; margin-bottom: 24px; }
.logo {
  font-size: 44px;
  color: var(--gold);
  text-shadow: 0 0 18px rgba(232, 198, 107, 0.6);
  animation: spin 14s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

h1 {
  margin: 8px 0 6px;
  font-size: 26px;
  letter-spacing: 4px;
  color: var(--gold-soft);
}
.subtitle { margin: 0; color: var(--muted); font-size: 14px; }

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
  background: rgba(10, 7, 24, 0.5);
  padding: 6px;
  border-radius: 14px;
  border: 1px solid var(--border);
}
.tab-btn {
  flex: 1;
  padding: 12px 10px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  font-family: inherit;
}
.tab-btn:hover { color: var(--gold-soft); }
.tab-btn.active {
  background: linear-gradient(135deg, var(--gold) 0%, #d9a93f 100%);
  color: #2a1d00;
  box-shadow: 0 6px 16px rgba(232, 198, 107, 0.3);
}
.tab-panel.hidden { display: none; }

.person-row {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
  background: rgba(255, 255, 255, 0.03);
}
.person-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.person-index { color: var(--gold); font-weight: 700; letter-spacing: 2px; }
.remove-person {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 16px;
  padding: 4px 8px;
  border-radius: 8px;
}
.remove-person:hover { color: #ff8b8b; background: rgba(255, 0, 0, 0.08); }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.grid label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(10, 7, 24, 0.6);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(232, 198, 107, 0.15);
}

/* 生日：年 / 月 / 日 三欄，外觀合併成單一輸入框 */
.ymd {
  display: flex;
  align-items: center;
  gap: 2px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(10, 7, 24, 0.6);
  border-radius: 10px;
  padding: 0 8px;
}
.ymd:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(232, 198, 107, 0.15);
}
.ymd input {
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 10px 2px;
  text-align: center;
  font-size: 15px;
  -moz-appearance: textfield;
  appearance: textfield;
}
.ymd input:focus { outline: none; box-shadow: none; }
.ymd input::-webkit-outer-spin-button,
.ymd input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.ymd .p-year, .ymd .d-year { flex: 1.8; }
.ymd .p-month, .ymd .p-day, .ymd .d-month, .ymd .d-day { flex: 1; }
.ymd .sep { color: var(--muted); opacity: 0.55; user-select: none; }

.field-label { display: block; margin: 18px 0 6px; font-size: 13px; color: var(--muted); }
textarea { resize: vertical; }

.btn-ghost {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 1px dashed var(--border);
  background: transparent;
  color: var(--gold-soft);
  cursor: pointer;
  font-size: 15px;
  margin-bottom: 6px;
}
.btn-ghost:hover:not(:disabled) { background: rgba(232, 198, 107, 0.08); }
.btn-ghost:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  width: 100%;
  margin-top: 20px;
  padding: 15px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--gold) 0%, #d9a93f 100%);
  color: #2a1d00;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 3px;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.2s;
  box-shadow: 0 8px 24px rgba(232, 198, 107, 0.3);
}
.btn-primary:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(232, 198, 107, 0.4); }
.btn-primary:disabled { opacity: 0.7; cursor: progress; }
.btn-primary.loading { animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.75; } }

.result {
  margin-top: 26px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}
.result h2 { color: var(--gold-soft); font-size: 18px; letter-spacing: 2px; }
.reading-text p { line-height: 1.9; white-space: pre-wrap; margin: 0 0 14px; }
.muted { color: var(--muted); }
.error-msg { color: #ff9b9b; }
.hidden { display: none; }

.page-footer {
  position: relative;
  z-index: 1;
  margin-top: 22px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr; }
  .card { padding: 24px 18px; }
  h1 { font-size: 22px; }
}