:root {
  --bg: #0f1115;
  --surface: #181b22;
  --surface-2: #1f232c;
  --line: #2a2f3a;
  --text: #e7ebf2;
  --muted: #8a93a6;
  --accent: #f7a23b;
  --accent-2: #ffb866;
  --danger: #e5484d;
  --ok: #30a46c;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "SF Pro KR", "Apple SD Gothic Neo", system-ui, sans-serif; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 20px 16px 64px; }

/* topbar (한 줄) */
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 8px 4px 12px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.topbar .brand { font-weight: 700; letter-spacing: 1px; font-size: 18px; color: var(--accent); }
.topbar .who { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; }
.topbar .who form { margin: 0; }

/* whoami (헤더 아래 별도 줄) */
.whoami { display: flex; align-items: center; gap: 8px; padding: 4px 4px 16px; }
.whoami-name { font-size: 15px; font-weight: 600; color: var(--text); }
.who-tag { display: inline-block; padding: 1px 6px; background: rgba(247,162,59,.15); color: var(--accent); border-radius: 4px; font-size: 11px; }
a.link, button.link { background: none; border: none; color: var(--muted); cursor: pointer; padding: 4px 8px; font: inherit; text-decoration: none; }
a.link:hover, button.link:hover { color: var(--text); }

/* hero */
.hero { padding: 8px 4px 20px; }
.hero h1 { margin: 0 0 6px; font-size: 26px; }
.hero .sub { margin: 0; color: var(--muted); font-size: 14px; }

/* dashboard 3-card grid */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 0 0 28px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; display: flex; flex-direction: column; min-height: 200px; }
.card-h { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; margin-bottom: 12px; }
.card-h-row { display: flex; align-items: center; gap: 8px; width: 100%; }
.card-icon { font-size: 18px; flex-shrink: 0; }
.card-title { font-weight: 600; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-meta { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.card-footer { margin-top: auto; padding-top: 10px; font-size: 11px; color: var(--muted); }

/* price card */
.price-main { display: flex; flex-direction: column; gap: 4px; padding: 8px 0 12px; }
.price-big { font-size: 28px; font-weight: 700; letter-spacing: -.5px; font-variant-numeric: tabular-nums; }
.price-change { font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.price-change.up { color: var(--ok); }
.price-change.down { color: var(--danger); }
.price-sub { display: flex; justify-content: space-between; padding: 8px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }

/* indicators card — 두 줄 레이아웃 (line1: 키+날짜, line2: 제목) */
.ind-list { list-style: none; padding: 0; margin: 0; }
.ind-row { display: flex; flex-direction: column; gap: 2px; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.ind-row:last-child { border-bottom: none; }
.ind-line1 { display: flex; align-items: baseline; gap: 8px; }
.ind-key { font-weight: 700; color: var(--accent); font-size: 12px; letter-spacing: .5px; flex-shrink: 0; }
.ind-date { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 12px; white-space: nowrap; }
.ind-line2 { color: var(--text); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding-left: 2px; }
.ind-empty { color: var(--muted); font-size: 13px; padding: 12px 0; text-align: center; }

/* market card */
.market-body { padding: 0; flex: 1; min-height: 140px; }
.market-canvas { width: 100%; height: auto; display: block; -webkit-user-select: none; user-select: none; }

/* tools section */
.section-title { font-size: 16px; margin: 0 4px 12px; color: var(--muted); font-weight: 500; }
.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.tool-card { display: block; padding: 18px 20px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; color: var(--text); text-decoration: none; transition: border-color .15s, transform .05s; }
.tool-card:hover { border-color: var(--accent); }
.tool-card:active { transform: translateY(1px); }
.tool-name { font-size: 17px; font-weight: 600; margin-bottom: 4px; }
.tool-desc { font-size: 13px; color: var(--muted); }

/* watermark — SVG 격자 패턴. 다크 배경에 흰색 0.06 opacity 텍스트.
   평상시엔 거의 안 보이지만 캡처 후 밝기/대비 조정 시 식별자 보임. */
.watermark {
  position: fixed; inset: 0; pointer-events: none; z-index: 9999;
  background-repeat: repeat;
  background-size: 480px 260px;
  user-select: none;
}

/* auth card */
.card.auth { max-width: 420px; margin: 64px auto; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 32px 28px; }
.card.auth h1 { margin: 0 0 6px; font-size: 26px; color: var(--accent); }
.card.auth .sub { color: var(--muted); margin: 0 0 24px; font-size: 14px; }
.card.auth label { display: block; margin-bottom: 14px; font-size: 13px; color: var(--muted); }
.card.auth label small { display: block; color: var(--muted); margin-top: 4px; font-size: 11px; }
.card.auth input[type=text], .card.auth input[type=password] { display: block; width: 100%; margin-top: 6px; padding: 10px 12px; background: var(--surface-2); color: var(--text); border: 1px solid var(--line); border-radius: 8px; font-size: 15px; }
.card.auth input:focus { outline: none; border-color: var(--accent); }
.card.auth button[type=submit] { width: 100%; padding: 12px; margin-top: 8px; background: var(--accent); color: #1a1300; border: none; border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer; }
.card.auth button[type=submit]:hover { background: var(--accent-2); }
.card.auth .links { margin-top: 20px; text-align: center; }
.card.auth .links a, .card.auth .btn-link { color: var(--muted); text-decoration: none; font-size: 13px; }
.card.auth .links a:hover { color: var(--accent); }

.login-opts { display: flex; gap: 16px; margin: 0 0 14px; flex-wrap: wrap; }
.login-opts .opt { display: inline-flex; align-items: center; gap: 6px; margin: 0; cursor: pointer; color: var(--muted); font-size: 13px; }
.login-opts .opt input[type=checkbox] { margin: 0; accent-color: var(--accent); cursor: pointer; }
.login-opts .opt:hover { color: var(--text); }

.group-radio { display: flex; gap: 8px; margin-bottom: 14px; }
.group-opt { flex: 1; display: flex; align-items: center; gap: 8px; padding: 10px 12px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; cursor: pointer; font-size: 14px; color: var(--text); margin: 0; }
.group-opt:has(input:checked) { border-color: var(--accent); background: rgba(247,162,59,.08); }
.group-opt input { margin: 0; accent-color: var(--accent); }

.err { background: rgba(229,72,77,.1); border: 1px solid rgba(229,72,77,.4); color: var(--danger); padding: 10px 12px; border-radius: 8px; margin-bottom: 16px; font-size: 13px; }
.notice { background: rgba(247,162,59,.1); border: 1px solid rgba(247,162,59,.4); color: var(--accent); padding: 10px 12px; border-radius: 8px; margin-bottom: 16px; font-size: 13px; }
.ok { background: rgba(48,164,108,.1); border: 1px solid rgba(48,164,108,.4); color: var(--ok); padding: 16px; border-radius: 8px; }
.ok p { margin: 0 0 8px; }
.ok .btn-link { display: inline-block; margin-top: 8px; padding: 8px 14px; background: var(--accent); color: #1a1300; border-radius: 6px; font-weight: 600; text-decoration: none; }

/* admin tables (4단계에서 사용) */
.admin-table { width: 100%; border-collapse: collapse; margin-top: 16px; }
.admin-table th, .admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
.admin-table th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.admin-table .btn-mini { background: var(--surface-2); border: 1px solid var(--line); color: var(--text); padding: 5px 10px; border-radius: 5px; cursor: pointer; font-size: 12px; }
.admin-table .btn-mini.danger { color: var(--danger); border-color: rgba(229,72,77,.4); }
.admin-table .btn-mini:hover { border-color: var(--accent); }

.nav-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.nav-tabs a { padding: 10px 16px; color: var(--muted); text-decoration: none; border-bottom: 2px solid transparent; font-size: 14px; }
.nav-tabs a.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ───── 반응형 ───── */
@media (max-width: 960px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cards .market-card { grid-column: 1 / -1; }  /* 시장성은 2열에서도 풀폭 */
}

@media (max-width: 640px) {
  .wrap { padding: 14px 12px 48px; }
  .topbar { padding: 6px 2px 12px; margin-bottom: 16px; }
  .topbar .brand { font-size: 16px; }
  .topbar .who { font-size: 12px; gap: 4px; }
  .topbar .who-name { display: block; width: 100%; margin-bottom: 4px; }
  a.link, button.link { padding: 4px 6px; }

  .hero { padding: 4px 2px 16px; }
  .hero h1 { font-size: 20px; margin-bottom: 4px; }
  .hero .sub { font-size: 13px; }

  .cards { grid-template-columns: 1fr; gap: 10px; margin-bottom: 20px; }
  .card { min-height: 0; padding: 14px 16px; }
  .card-h { margin-bottom: 8px; }
  .card-title { font-size: 14px; }
  .price-big { font-size: 24px; }
  .ind-row { grid-template-columns: 44px 78px 1fr; gap: 6px; font-size: 12px; }

  .tools { grid-template-columns: 1fr; }
  .tool-card { padding: 14px 16px; }
  .tool-name { font-size: 16px; }

  .card.auth { margin: 24px auto; padding: 24px 18px; }
}

@media (max-width: 380px) {
  .ind-row { grid-template-columns: 40px 70px 1fr; font-size: 11px; }
  .price-big { font-size: 22px; }
}