/* Layout: case-file sidebar | official incident form on top, SQL workbench + records room below */
:root {
  --paper: #E8ECF0;
  --sheet: #FBFCFD;
  --ink: #18243A;
  --muted: #5B6779;
  --rule: #CBD3DD;
  --accent: #2350A0;
  --accent-soft: #DCE5F5;
  --stamp: #C2362B;
  --ok: #2E7D4F;
  --code-bg: #F2F4F7;
  --hl: #FFF3C4;
  --f-display: "Nanum Myeongjo", "AppleMyungjo", "Batang", serif;
  --f-body: "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --f-mono: "Nanum Gothic Coding", "D2Coding", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0E141E; --sheet: #161F2D; --ink: #E2E8F1; --muted: #93A0B4; --rule: #2A3649;
    --accent: #84A8EC; --accent-soft: #1F2E4A; --stamp: #E8695E; --ok: #5FC78D; --code-bg: #101824; --hl: #4A3F14;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0E141E; --sheet: #161F2D; --ink: #E2E8F1; --muted: #93A0B4; --rule: #2A3649;
  --accent: #84A8EC; --accent-soft: #1F2E4A; --stamp: #E8695E; --ok: #5FC78D; --code-bg: #101824; --hl: #4A3F14;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  background: var(--paper); color: var(--ink); font-family: var(--f-body); font-size: 15px; line-height: 1.6;
}
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
code, .mono { font-family: var(--f-mono); }

/* ── top bar ── */
.topbar {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5;
  background: var(--ink); color: var(--sheet);
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 10px;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.topbar .org { font-family: var(--f-display); font-weight: 800; font-size: 18px; letter-spacing: .02em; }
.topbar .org small { font-family: var(--f-body); font-weight: 400; font-size: 12px; opacity: .7; margin-left: 8px; letter-spacing: .08em; }
.topbar .spacer { flex: 1; }
.badge { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.badge .rank { border: 1px solid currentColor; padding: 2px 10px; border-radius: 2px; letter-spacing: .1em; }
.progress { display: flex; gap: 4px; flex-wrap: wrap; }
.progress i { width: 10px; height: 10px; border: 1px solid currentColor; display: block; transform: rotate(45deg); opacity: .8; }
.progress i.on { background: var(--sheet); }

/* ── shell ── */
.shell {
  display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 20px;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 20px 40px; max-width: 1480px; margin: 0 auto;
}
@media (max-width: 900px) { .shell { grid-template-columns: minmax(0, 1fr); } }

/* ── case list ── */
.cases { display: flex; flex-direction: column; gap: 8px; }
.cases h2 { font-size: 12px; letter-spacing: .14em; color: var(--muted); margin: 0 0 4px; font-weight: 500; }
@media (max-width: 900px) { .cases { flex-direction: row; overflow-x: auto; padding-bottom: 4px; } .cases h2 { display: none; } }
.case-tab {
  text-align: left; background: var(--sheet); border: 1px solid var(--rule); border-left: 4px solid var(--rule);
  padding: 10px 12px; display: grid; gap: 2px; position: relative; min-width: 190px;
}
.case-tab .no { font-family: var(--f-mono); font-size: 11px; color: var(--muted); }
.case-tab .ttl { font-weight: 500; font-size: 14px; }
.case-tab .meta { font-size: 12px; color: var(--muted); }
.case-tab[aria-current="true"] { border-left-color: var(--accent); background: var(--accent-soft); }
.case-tab.solved .meta { color: var(--ok); }
.case-tab:disabled { cursor: not-allowed; opacity: .5; }
.case-tab .mini-stamp {
  position: absolute; right: 10px; top: 10px; color: var(--stamp); border: 2px solid var(--stamp);
  font-family: var(--f-display); font-weight: 800; font-size: 12px; padding: 0 5px; transform: rotate(-8deg);
}
.sidebar-tools { margin-top: 12px; display: grid; gap: 6px; font-size: 13px; }
@media (max-width: 900px) { .sidebar-tools { display: none; } }
.linkish { background: none; border: none; padding: 0; color: var(--muted); text-decoration: underline; text-underline-offset: 3px; text-align: left; }

/* ── case document ── */
.main { display: grid; gap: 20px; min-width: 0; }
.doc { background: var(--sheet); border: 1px solid var(--rule); position: relative; overflow: hidden; }
.doc-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; flex-wrap: wrap; padding: 20px 24px 14px; border-bottom: 2px solid var(--ink); }
.doc-head .kicker { font-size: 12px; letter-spacing: .16em; color: var(--muted); }
.doc-head h1 { font-family: var(--f-display); font-weight: 800; font-size: clamp(22px, 3vw, 30px); margin: 2px 0 0; line-height: 1.25; text-wrap: balance; }
.doc-head .skill { font-size: 12px; color: var(--accent); border: 1px solid var(--accent); padding: 2px 8px; white-space: nowrap; }
.form-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-bottom: 1px solid var(--rule); }
.form-grid > div { padding: 8px 14px; border-right: 1px solid var(--rule); min-width: 0; }
.form-grid > div:last-child { border-right: none; }
.form-grid dt { font-size: 11px; letter-spacing: .12em; color: var(--muted); }
.form-grid dd { margin: 0; font-family: var(--f-mono); font-size: 13px; overflow-wrap: anywhere; }
@media (max-width: 640px) { .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .form-grid > div:nth-child(2) { border-right: none; } .form-grid > div:nth-child(-n+2) { border-bottom: 1px solid var(--rule); } }
.doc-body { padding: 18px 24px 22px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 300px); gap: 24px; }
@media (max-width: 1100px) { .doc-body { grid-template-columns: minmax(0, 1fr); } }
.brief p { margin: 0 0 10px; max-width: 64ch; }
.brief .orders { margin-top: 12px; padding: 10px 14px; background: var(--code-bg); border-left: 3px solid var(--ink); max-width: 64ch; }
.brief .orders b { display: block; font-size: 12px; letter-spacing: .12em; color: var(--muted); font-weight: 500; }
.brief code { background: var(--code-bg); padding: 1px 5px; font-size: 13px; }

.side-stack { display: grid; gap: 14px; align-content: start; }
.panel-label { font-size: 12px; letter-spacing: .14em; color: var(--muted); margin: 0 0 6px; font-weight: 500; }
.hints { display: grid; gap: 6px; }
.hint { font-size: 13px; padding: 8px 10px; background: var(--hl); border: 1px solid var(--rule); }
.hint pre { margin: 6px 0 0; white-space: pre-wrap; font-family: var(--f-mono); font-size: 12px; }
.btn {
  border: 1px solid var(--ink); background: var(--sheet); padding: 7px 14px; font-size: 14px; border-radius: 2px;
}
.btn:hover { background: var(--code-bg); }
.btn.primary { background: var(--ink); color: var(--sheet); }
.btn.primary:hover { opacity: .9; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.accuse { display: grid; gap: 8px; }
.accuse .row { display: flex; gap: 6px; }
.accuse input { flex: 1; min-width: 0; padding: 7px 10px; border: 1px solid var(--rule); background: var(--sheet); border-bottom: 2px solid var(--ink); }
.verdict { font-size: 13px; min-height: 1.4em; }
.verdict.bad { color: var(--stamp); }
.verdict.good { color: var(--ok); }
.epilogue { margin-top: 4px; padding: 12px 14px; border: 1px dashed var(--ok); font-size: 14px; }
.epilogue p { margin: 0 0 6px; }
.epilogue p:last-child { margin: 0; }

.stamp {
  position: absolute; left: 52%; top: 12px; color: var(--stamp); border: 4px double var(--stamp);
  font-family: var(--f-display); font-weight: 800; font-size: 34px; letter-spacing: .2em; padding: 2px 12px 2px 18px;
  transform: rotate(-12deg); opacity: .85; pointer-events: none; mix-blend-mode: multiply;
}
:root[data-theme="dark"] .stamp { mix-blend-mode: normal; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .stamp { mix-blend-mode: normal; } }
.stamp.fresh { animation: thump .45s cubic-bezier(.2,1.6,.4,1) both; }
@keyframes thump { from { transform: rotate(-12deg) scale(2.2); opacity: 0; } to { transform: rotate(-12deg) scale(1); opacity: .85; } }
@media (prefers-reduced-motion: reduce) { .stamp.fresh { animation: none; } }
@media (max-width: 640px) { .stamp { left: auto; right: 16px; top: 8px; font-size: 24px; } }

/* ── workbench ── */
.bench { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 20px; align-items: start; }
@media (max-width: 1100px) { .bench { grid-template-columns: minmax(0, 1fr); } }
.console { background: var(--sheet); border: 1px solid var(--rule); min-width: 0; }
.console-bar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; padding: 8px 12px; border-bottom: 1px solid var(--rule); }
.console-bar .title { font-size: 12px; letter-spacing: .14em; color: var(--muted); margin-right: auto; }
.kbd { font-family: var(--f-mono); font-size: 11px; color: var(--muted); }
#sql {
  display: block; width: 100%; min-height: 150px; resize: vertical; border: none; padding: 14px 16px;
  background: var(--code-bg); font-family: var(--f-mono); font-size: 14px; line-height: 1.55; tab-size: 2;
}
#sql:focus-visible { outline-offset: -2px; }
.result-meta { padding: 8px 12px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--rule); display: flex; gap: 12px; flex-wrap: wrap; }
.result-meta.err { color: var(--stamp); }
.result-wrap { overflow: auto; max-height: 440px; border-top: 1px solid var(--rule); }
table.res { border-collapse: collapse; font-family: var(--f-mono); font-size: 13px; width: max-content; min-width: 100%; }
table.res th { position: sticky; top: 0; background: var(--sheet); text-align: left; padding: 6px 12px; border-bottom: 2px solid var(--ink); font-weight: 700; white-space: nowrap; }
table.res td { padding: 5px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; max-width: 520px; white-space: pre-wrap; font-variant-numeric: tabular-nums; }
table.res tr:nth-child(even) td { background: var(--code-bg); }
table.res td.num { text-align: right; }
table.res td.null { color: var(--muted); font-style: italic; }
.empty { padding: 18px 16px; color: var(--muted); font-size: 14px; }

.records { background: var(--sheet); border: 1px solid var(--rule); }
.records-head { padding: 10px 12px; border-bottom: 1px solid var(--rule); }
.records-head p { margin: 2px 0 0; font-size: 12px; color: var(--muted); }
.tbl { border-bottom: 1px solid var(--rule); }
.tbl summary { padding: 8px 12px; cursor: pointer; display: flex; justify-content: space-between; gap: 8px; list-style: none; }
.tbl summary::-webkit-details-marker { display: none; }
.tbl summary .n { font-family: var(--f-mono); font-weight: 700; font-size: 13px; }
.tbl summary .d { font-size: 12px; color: var(--muted); text-align: right; }
.tbl ul { list-style: none; margin: 0; padding: 0 12px 10px; display: grid; gap: 2px; }
.tbl li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 8px; font-size: 12px; }
.tbl li code { font-size: 12px; overflow-wrap: anywhere; }
.tbl li span { color: var(--muted); }
.tbl .peek { margin: 0 12px 10px; }
.cheat { padding: 10px 12px; font-size: 12px; }
.cheat pre { margin: 6px 0 0; font-family: var(--f-mono); font-size: 12px; white-space: pre-wrap; background: var(--code-bg); padding: 8px; }


.loading { padding: 40px 0; text-align: center; color: var(--muted); }
.toast {
  position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%);
  background: var(--ink); color: var(--sheet); padding: 8px 16px; font-size: 14px; border-radius: 2px; z-index: 10;
}

/* ── rank groups ── */
.rank-group { display: grid; gap: 6px; }
.rank-group + .rank-group { margin-top: 10px; }
.rank-head { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 2px solid var(--ink); padding-bottom: 3px; }
.rank-head .rname { font-family: var(--f-display); font-weight: 800; font-size: 16px; letter-spacing: .08em; }
.rank-head .rstat { font-family: var(--f-mono); font-size: 12px; color: var(--muted); }
.rank-group.locked .rank-head { border-bottom-color: var(--rule); color: var(--muted); }
.rintro { margin: 0; font-size: 12px; color: var(--muted); }
@media (max-width: 900px) { .rank-group { min-width: 210px; } .rank-group + .rank-group { margin-top: 0; } }
.progress { gap: 8px; }
.pgroup { display: flex; gap: 4px; }
.promo { display: grid; gap: 2px; padding: 10px 14px; background: var(--accent-soft); border: 1px solid var(--accent); font-size: 14px; }
.promo b { color: var(--accent); }
.promo code { font-size: 12px; }
.tbl.locked .lockrow { display: flex; justify-content: space-between; gap: 8px; padding: 8px 12px; color: var(--muted); }
.tbl.locked .n { font-family: var(--f-mono); font-size: 13px; text-decoration: line-through; text-decoration-color: var(--rule); }
.tbl.locked .d { font-size: 12px; }

/* ── player & server sync ── */
.player { display: flex; align-items: center; gap: 10px; font-size: 13px; flex-wrap: wrap; }
.player .who b { font-weight: 700; }
.sync { font-family: var(--f-mono); font-size: 11px; opacity: .75; }
.sync.err { color: var(--stamp); opacity: 1; }
.linkish.on-dark { color: inherit; opacity: .8; }
.login-layer {
  position: fixed; inset: 0; z-index: 20; display: grid; place-items: center;
  background: color-mix(in srgb, var(--ink) 55%, transparent);
  padding: max(16px, env(safe-area-inset-top, 0px)) max(16px, env(safe-area-inset-right, 0px)) max(16px, env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
}
.login { width: min(440px, 100%); background: var(--sheet); border: 1px solid var(--rule); border-top: 4px solid var(--ink); padding: 22px 24px; display: grid; gap: 10px; }
.login .kicker { margin: 0; font-size: 12px; letter-spacing: .16em; color: var(--muted); }
.login h2 { margin: 0; font-family: var(--f-display); font-weight: 800; font-size: 22px; text-wrap: balance; }
.login .sub { margin: 0; font-size: 13px; color: var(--muted); }
.login label { font-size: 12px; letter-spacing: .1em; color: var(--muted); }
.login input { padding: 9px 10px; border: 1px solid var(--rule); border-bottom: 2px solid var(--ink); background: var(--sheet); font-size: 15px; }
.login-msg { min-height: 1.3em; font-size: 13px; color: var(--stamp); }
.login-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ── floating notebook ── */
.nb-fab {
  position: fixed; z-index: 15;
  right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  display: flex; align-items: center; gap: 8px; padding: 10px 16px;
  background: var(--ink); color: var(--sheet); border: 1px solid var(--ink); border-radius: 2px;
  font-size: 14px; box-shadow: 0 6px 18px color-mix(in srgb, var(--ink) 30%, transparent);
}
.nb-fab:hover { opacity: .92; }
.nb-fab.on { background: var(--accent); border-color: var(--accent); }
/* 스프링 수첩 모양 아이콘 */
.nb-icon { width: 12px; height: 15px; border: 1.5px solid currentColor; border-left-width: 3px; border-radius: 1px; }
.nb-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--stamp); }
.nb-panel {
  position: fixed; z-index: 16;
  right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(68px + env(safe-area-inset-bottom, 0px));
  width: 360px; height: 320px; min-width: 260px; min-height: 180px; max-width: calc(100vw - 32px);
  display: flex; flex-direction: column; overflow: hidden; resize: both;
  background: var(--sheet); border: 1px solid var(--rule); border-top: 4px solid var(--ink);
  box-shadow: 0 14px 40px color-mix(in srgb, var(--ink) 28%, transparent);
}
.nb-panel[hidden] { display: none !important; }
.nb-panel.dragging { opacity: .92; user-select: none; }
.nb-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 10px 8px 14px; border-bottom: 1px solid var(--rule); cursor: grab; touch-action: none; }
.nb-panel.dragging .nb-head { cursor: grabbing; }
.nb-title { display: grid; min-width: 0; }
.nb-title b { font-family: var(--f-display); font-weight: 800; font-size: 15px; }
.nb-title span { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nb-close { border: none; background: none; font-size: 22px; line-height: 1; padding: 2px 8px; color: var(--muted); }
.nb-close:hover { color: var(--ink); }
.nb-panel textarea {
  flex: 1; width: 100%; resize: none; border: none; padding: 12px 14px;
  font-family: var(--f-mono); font-size: 13px; line-height: 1.6;
  /* 공책 줄 */
  background: var(--sheet) repeating-linear-gradient(to bottom, transparent 0, transparent calc(1.6em - 1px), var(--rule) calc(1.6em - 1px), var(--rule) 1.6em);
  background-attachment: local; background-position: 0 12px;
}
.nb-panel textarea:focus-visible { outline-offset: -2px; }
.nb-foot { display: flex; justify-content: space-between; gap: 8px; padding: 6px 12px; border-top: 1px solid var(--rule); font-size: 11px; color: var(--muted); }
@media (max-width: 640px) {
  .nb-panel { left: 0 !important; right: 0 !important; top: auto !important; bottom: 0 !important; width: auto !important; max-width: none; height: 55vh !important; resize: none;
    padding-bottom: env(safe-area-inset-bottom, 0px); padding-left: env(safe-area-inset-left, 0px); padding-right: env(safe-area-inset-right, 0px); }
  .nb-head { cursor: default; }
}
@media (prefers-reduced-motion: no-preference) { .nb-panel:not([hidden]) { animation: nb-in .16s ease-out; } }
@keyframes nb-in { from { transform: translateY(8px); opacity: 0; } }
/* 수첩 버튼이 결과 표 마지막 줄을 가리지 않게 */
.shell { padding-bottom: 80px; }