:root {
  color-scheme: light;
  --background: #f6f5f2;
  --surface: #ffffff;
  --text: #1e1e24;
  --muted: #6e6e78;
  --line: #dedde3;
  --accent: #7656ff;
  --accent-dark: #5837e8;
  --danger: #b3261e;
  --success: #137a4a;
  --shadow: 0 18px 55px rgba(25, 20, 50, 0.09);
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--background); }
body { margin: 0; min-height: 100vh; color: var(--text); background: radial-gradient(circle at top, #efebff 0, var(--background) 38rem); }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 24px;
}
.brand { font-weight: 900; letter-spacing: .12em; text-decoration: none; }
.admin-link { color: var(--muted); font-size: .9rem; }
.container { width: min(100% - 32px, 1040px); margin: 24px auto 80px; }
.card { background: rgba(255,255,255,.93); border: 1px solid rgba(255,255,255,.8); border-radius: 24px; box-shadow: var(--shadow); }
.hero { max-width: 720px; margin: 36px auto 68px; padding: clamp(32px, 6vw, 64px); text-align: center; }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-size: .75rem; font-weight: 900; letter-spacing: .18em; }
h1, h2, p { overflow-wrap: anywhere; }
h1 { margin: 0; font-size: clamp(2rem, 7vw, 4rem); line-height: 1.1; }
h2 { margin: 0; font-size: clamp(1.35rem, 4vw, 2rem); }
.description { max-width: 560px; margin: 18px auto 0; color: var(--muted); line-height: 1.8; }
.stock-summary { display: flex; align-items: baseline; justify-content: center; gap: 12px; margin: 30px 0 20px; }
.stock-summary span { color: var(--muted); }
.stock-summary strong { font-size: 2.2rem; }
.draw-button, .primary-button, .secondary-button {
  border: 0;
  border-radius: 999px;
  padding: 14px 26px;
  font-weight: 800;
  transition: transform .15s ease, opacity .15s ease, box-shadow .15s ease;
}
.draw-button, .primary-button { color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-dark)); box-shadow: 0 12px 26px rgba(88,55,232,.25); }
.draw-button { min-width: min(100%, 300px); padding: 18px 34px; font-size: 1.1rem; }
.secondary-button { color: var(--accent-dark); background: #efecff; }
.text-button { border: 0; padding: 10px; color: var(--muted); background: transparent; text-decoration: underline; }
button:hover:not(:disabled) { transform: translateY(-1px); }
button:disabled { cursor: not-allowed; opacity: .5; box-shadow: none; }
.status-message { min-height: 1.5em; margin: 16px 0 0; color: var(--muted); }
.status-message.error { color: var(--danger); }
.status-message.success { color: var(--success); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.hint { margin: 0; color: var(--muted); font-size: .9rem; }
.prize-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; }
.prize-card { overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; }
.prize-image { display: grid; place-items: center; aspect-ratio: 4 / 3; background: linear-gradient(135deg, #f2efff, #fff8ea); font-size: 3rem; }
.prize-image img, .result-image img { width: 100%; height: 100%; object-fit: cover; }
.prize-body { padding: 18px; }
.rarity { display: inline-block; margin-bottom: 8px; color: var(--accent-dark); font-size: .78rem; font-weight: 900; }
.prize-name { margin: 0; font-size: 1.05rem; }
.prize-meta { display: flex; justify-content: space-between; gap: 10px; margin-top: 14px; color: var(--muted); font-size: .86rem; }
.sold-out { opacity: .55; }

.result-dialog { width: min(92vw, 520px); padding: 0; border: 0; border-radius: 28px; box-shadow: 0 30px 100px rgba(15,10,35,.35); }
.result-dialog::backdrop { background: rgba(18,14,35,.62); backdrop-filter: blur(5px); }
.result-content { position: relative; padding: 42px; text-align: center; }
.dialog-close { position: absolute; top: 14px; right: 16px; width: 40px; height: 40px; border: 0; border-radius: 50%; background: #f1f0f4; font-size: 1.4rem; }
.result-label { margin: 0 0 6px; color: var(--muted); font-weight: 900; letter-spacing: .2em; }
.result-rarity { margin: 0 0 16px; color: var(--accent); font-size: 1.5rem; font-weight: 900; }
.result-image { display: grid; place-items: center; width: min(100%, 300px); aspect-ratio: 4 / 3; margin: 0 auto 22px; overflow: hidden; border-radius: 20px; background: linear-gradient(135deg, #f2efff, #fff8ea); font-size: 5rem; }
.result-content h2 { margin-bottom: 10px; }
.result-stock { margin: 0 0 24px; color: var(--muted); }

.admin-container { max-width: 1120px; }
.admin-login { max-width: 520px; margin: 60px auto; padding: 38px; }
.admin-login h1 { margin-bottom: 24px; font-size: 2.2rem; }
.admin-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin: 30px 0; }
.toolbar-actions { display: flex; align-items: center; gap: 8px; }
.admin-section { margin-top: 24px; padding: 28px; }
.admin-section > h2 { margin-bottom: 22px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: end; gap: 18px; }
.field { display: grid; gap: 7px; }
.field > span, .checkbox-field { color: var(--muted); font-size: .88rem; font-weight: 700; }
.field-wide { grid-column: 1 / -1; }
input, textarea { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; color: var(--text); background: #fff; }
input:focus, textarea:focus { outline: 3px solid rgba(118,86,255,.15); border-color: var(--accent); }
.checkbox-field { display: flex; align-items: center; gap: 9px; }
.checkbox-field input { width: auto; }
.admin-prize-list { display: grid; gap: 16px; }
.admin-prize-card { padding: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; }
.admin-prize-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.stock-badge { flex: 0 0 auto; padding: 8px 12px; border-radius: 999px; background: #f1efff; font-weight: 900; }
.admin-prize-fields { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 12px; }
.admin-prize-fields .image-field { grid-column: 1 / -1; }
.admin-prize-actions { display: flex; flex-wrap: wrap; align-items: end; gap: 10px; margin-top: 16px; }
.adjust-field { width: 100px; }
.reason-field { min-width: 190px; flex: 1; }
.danger-button { border: 1px solid #f0b8b5; border-radius: 999px; padding: 12px 18px; color: var(--danger); background: #fff8f7; font-weight: 700; }
.table-section { overflow: hidden; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-size: .78rem; }
.empty-row { color: var(--muted); text-align: center; }

@media (max-width: 720px) {
  .site-header { padding-inline: 16px; }
  .container { width: min(100% - 20px, 1040px); margin-top: 10px; }
  .hero { margin-top: 20px; padding: 34px 22px; }
  .section-heading, .admin-toolbar { align-items: flex-start; flex-direction: column; }
  .form-grid, .admin-prize-fields { grid-template-columns: 1fr; }
  .field-wide, .admin-prize-fields .image-field { grid-column: auto; }
  .admin-section, .admin-login { padding: 22px; }
  .result-content { padding: 38px 22px 26px; }
}