:root {
  --bg: #0d1119;
  --bg-grad: radial-gradient(1200px 600px at 70% -10%, #16233a 0%, #0d1119 60%);
  --panel: #161c28;
  --panel-border: rgba(56, 115, 179, 0.45);
  --text: #e5ebf2;
  --muted: #a6bfe0;
  --accent: #59d9ff;
  --link: #7cc4ff;
  --brand: #d89a45; /* 세란텀 페이지 --ser-mark와 동일 — 헤더 브랜드 색 */
}

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

body {
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  background: var(--bg) var(--bg-grad) no-repeat;
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

.wrap { max-width: 860px; margin: 0 auto; padding: 0 24px; }

header {
  border-bottom: 1px solid var(--panel-border);
  background: rgba(13, 17, 25, 0.85);
  backdrop-filter: blur(6px);
  position: sticky; top: 0; z-index: 10;
}
header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
  width: min(100% - 48px, 1120px); max-width: none; padding: 0;
}
.logo {
  font-weight: 800; font-size: 1.15rem; letter-spacing: 0.06em;
  color: var(--text); text-decoration: none;
}
.logo span { color: var(--brand); }
nav a {
  color: rgba(240, 240, 235, 0.72); text-decoration: none; font-size: 0.9rem;
  margin-left: 18px;
}
nav a:hover { color: var(--brand); }
nav a[aria-current="page"] { color: #fff; }

main { padding: 56px 0 80px; }

h1 { font-size: 1.9rem; margin-bottom: 8px; letter-spacing: -0.01em; }
.sub { color: var(--muted); margin-bottom: 40px; font-size: 0.95rem; }

h2 {
  font-size: 1.2rem; margin: 40px 0 12px;
  padding-left: 12px; border-left: 3px solid var(--accent);
}
h3 { font-size: 1.02rem; margin: 24px 0 8px; color: var(--accent); }
p, li { color: var(--text); font-size: 0.96rem; }
main p { margin-bottom: 12px; }
ul, ol { padding-left: 22px; margin-bottom: 12px; }
li { margin-bottom: 4px; }
a { color: var(--link); }
strong { color: #fff; }

.card {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 10px; padding: 24px 28px; margin-bottom: 20px;
}
.card h2 { margin-top: 0; }

table {
  width: 100%; border-collapse: collapse; margin: 12px 0 20px;
  font-size: 0.9rem;
}
th, td {
  border: 1px solid rgba(56, 115, 179, 0.3);
  padding: 8px 12px; text-align: left; vertical-align: top;
}
th { background: rgba(56, 115, 179, 0.15); color: var(--muted); white-space: nowrap; }

.notice {
  border: 1px solid rgba(89, 217, 255, 0.4);
  background: rgba(89, 217, 255, 0.07);
  border-radius: 8px; padding: 14px 18px; margin: 16px 0;
  font-size: 0.92rem;
}

.btn {
  display: inline-block; background: #26527f; color: #fff;
  padding: 12px 26px; border-radius: 8px; text-decoration: none;
  border: 0; cursor: pointer; font: inherit; font-weight: 600; margin: 8px 0;
}
.btn:hover { background: #2f649b; }

.form-help, .support-note { color: var(--muted); font-size: 0.85rem; }
.support-note { margin-top: 18px; }

.deletion-dialog {
  width: min(720px, calc(100% - 40px)); max-width: none; max-height: 90dvh;
  margin: auto; padding: 0; border: 1px solid var(--panel-border); border-radius: 14px;
  background: var(--panel); color: var(--text); box-shadow: 0 24px 80px rgba(0, 0, 0, 0.65);
  overflow: hidden; color-scheme: dark;
}
.deletion-dialog::backdrop { background: rgba(4, 8, 14, 0.78); backdrop-filter: blur(4px); }
.dialog-shell { display: flex; flex-direction: column; max-height: 90dvh; }
.dialog-header {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 20px;
  padding: 20px 24px 18px; border-bottom: 1px solid var(--panel-border);
  background: #131a26; flex: 0 0 auto;
}
.dialog-header span { color: var(--accent); font-size: 0.75rem; font-weight: 700; }
.dialog-header h2 { margin: 2px 0 0; padding: 0; border: 0; font-size: 1.35rem; }
.dialog-close {
  width: 42px; height: 42px; border: 1px solid var(--panel-border); border-radius: 50%;
  background: transparent; color: var(--text); cursor: pointer; font: 300 1.7rem/1 sans-serif;
  flex: 0 0 auto;
}
.dialog-close:hover { color: var(--accent); border-color: var(--accent); }
.dialog-body { padding: 22px 24px 26px; overflow-y: auto; overscroll-behavior: contain; }
.dialog-intro { color: var(--muted); font-size: 0.9rem; }

.request-form { margin-top: 20px; }
.form-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 20px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label, .check-field { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.field small { color: var(--muted); font-size: 0.78rem; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--panel-border); border-radius: 7px;
  background: #0d1420; color: var(--text); padding: 10px 12px;
  font: inherit; line-height: 1.45;
}
.field textarea { min-height: 100px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid rgba(89, 217, 255, 0.35); border-color: var(--accent);
}
.check-field {
  display: flex; gap: 10px; align-items: flex-start; margin-top: 18px; font-weight: 400;
}
.check-field input { margin-top: 6px; flex: 0 0 auto; }
.form-actions { display: flex; align-items: center; gap: 14px; margin-top: 18px; flex-wrap: wrap; }
.form-actions .btn:disabled { cursor: wait; opacity: 0.6; }
.form-status { min-height: 1.5em; color: var(--muted); font-size: 0.9rem; }
.form-status.ok { color: #7ee3a1; }
.form-status.error { color: #ff9393; }

.hero { text-align: center; padding: 40px 0 24px; }
.hero h1 { font-size: 2.4rem; }
.hero p { color: var(--muted); font-size: 1.05rem; }

.game-card {
  display: flex; gap: 24px; align-items: center;
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 12px; padding: 28px; margin: 32px 0;
}
.game-card .thumb {
  width: 120px; height: 120px; border-radius: 16px; flex-shrink: 0;
  background: linear-gradient(135deg, #1b3a5c, #0e1a2b);
  border: 1px solid var(--panel-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.4rem;
}
.game-card h2 { border: none; padding: 0; margin: 0 0 6px; }
.game-card p { color: var(--muted); font-size: 0.92rem; margin: 0; }

footer {
  border-top: 1px solid var(--panel-border);
  padding: 28px 0 40px; color: var(--muted); font-size: 0.82rem;
}
footer .wrap { line-height: 1.9; }
footer a { color: var(--muted); }

.placeholder { color: #e8b34b; }

@media (max-width: 600px) {
  nav a { margin-left: 12px; font-size: 0.82rem; }
  nav a:nth-child(n + 3) { display: none; } /* 세란텀 페이지와 동일 규칙 — 모바일은 앞 2개만 */
  .game-card { flex-direction: column; text-align: center; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .deletion-dialog { width: calc(100% - 16px); max-height: calc(100dvh - 16px); border-radius: 12px; }
  .dialog-shell { max-height: calc(100dvh - 16px); }
  .dialog-header { padding: 15px 16px 14px; }
  .dialog-header h2 { font-size: 1.15rem; }
  .dialog-close { width: 40px; height: 40px; }
  .dialog-body { padding: 16px 16px 20px; }
  .request-form { margin-top: 16px; }
  .form-grid { gap: 14px; }
  .form-actions { align-items: stretch; }
  .form-actions .btn, .form-status { width: 100%; }
  .delete-page .card > .btn { width: 100%; text-align: center; }
  h1 { font-size: 1.5rem; }
  .hero h1 { font-size: 1.9rem; }
}