/* =====================================================================
   petfood.nonparadigm.com — 트리아지 플래카드 디자인 시스템
   Design Read: 반려동물 응급 안전정보 니치 도구. 임상 트리아지 언어.
   팔레트 락(4단계 트리아지 4색이 유일 의미론적 색). auto 테마 단일.
   ===================================================================== */

:root {
  /* base */
  --paper: #eef2f0;            /* 차가운 클리닉 페이퍼 */
  --ink: #10201c;             /* 딥 슬레이트그린 잉크 */
  --surface: #ffffff;
  --surface-2: #e6ece9;
  --line: #cfd8d4;
  --line-strong: #b7c2bd;

  /* 중립 슬레이트-그린 그레이 스케일 */
  --muted: #5b6b66;
  --muted-2: #74837e;
  --muted-3: #8b9994;

  /* 상호작용 전용 액센트 (딥 파인 틸) */
  --accent: #0e5c4b;
  --accent-ink: #ffffff;
  --focus: #0e5c4b;

  /* 트리아지 4색 (유일 색 시스템) */
  --safe: #2f8f5b;
  --caution: #d9922b;
  --danger: #d64545;
  --emergency: #a01f2e;
  --safe-wash: #e6f2ea;
  --caution-wash: #f7ecd9;
  --danger-wash: #f7e3e3;
  --emergency-wash: #f4dde0;

  /* shape lock: 카드 12 / 배지 pill / 입력 8 */
  --r-card: 12px;
  --r-input: 8px;
  --r-pill: 999px;

  --grid-line: rgba(16, 32, 28, 0.045);
  --shadow: 0 1px 2px rgba(16, 32, 28, 0.06), 0 6px 20px rgba(16, 32, 28, 0.05);
  --maxw: 940px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #10201c;
    --ink: #e7efeb;
    --surface: #16302a;
    --surface-2: #1b3830;
    --line: #274a41;
    --line-strong: #315a4f;
    --muted: #a4b4ae;
    --muted-2: #8ea099;
    --muted-3: #74857f;
    --accent: #3aa88c;
    --accent-ink: #06231c;
    --focus: #3aa88c;
    --safe: #4fb87c;
    --caution: #e6a94a;
    --danger: #e56a6a;
    --emergency: #d6636f;
    --safe-wash: #143a2b;
    --caution-wash: #3a2f18;
    --danger-wash: #3a1f1f;
    --emergency-wash: #3a1c22;
    --grid-line: rgba(231, 239, 235, 0.05);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.28);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "IBM Plex Sans KR", system-ui, -apple-system, "Apple SD Gothic Neo", sans-serif;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 22px 22px;
  line-height: 1.72;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.mono { font-family: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.32; letter-spacing: -0.01em; font-weight: 700; }

/* ── nav ── */
.top-nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  padding: 12px clamp(14px, 4vw, 28px);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: saturate(1.4) blur(8px);
}
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand .plus { color: var(--accent); }
.model-tag {
  font-family: "IBM Plex Mono", monospace; font-size: 11px; font-weight: 500;
  color: var(--muted); border: 1px solid var(--line-strong);
  padding: 1px 6px; border-radius: var(--r-pill); letter-spacing: 0.04em;
}
.nav-links { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; }
.nav-links a {
  color: var(--muted); font-size: 14px; padding: 6px 10px; border-radius: var(--r-input);
}
.nav-links a:hover { color: var(--ink); background: var(--surface-2); text-decoration: none; }
.nav-links a.cta { color: var(--accent); font-weight: 600; }

.container { max-width: var(--maxw); margin: 0 auto; padding: clamp(18px, 4vw, 36px) clamp(14px, 4vw, 28px) 60px; }

/* ── hero ── */
.hero { padding: 10px 0 6px; }
.eyebrow {
  font-family: "IBM Plex Mono", monospace; font-size: 12px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted-2); margin: 0 0 10px;
}
.hero h1 { font-size: clamp(1.5rem, 5vw, 2.15rem); margin: 0 0 12px; }
.hero-lede { font-size: clamp(1rem, 2.6vw, 1.12rem); color: var(--muted); margin: 0 0 8px; max-width: 62ch; }
.hero-lede b { color: var(--ink); font-weight: 600; }

/* ── triage legend ── */
.legend { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 4px; }
.legend .chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; padding: 4px 11px 4px 9px;
  border-radius: var(--r-pill); border: 1px solid var(--line-strong);
  background: var(--surface);
}
.legend .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.dot-safe, .g-안전 .dot { background: var(--safe); }
.dot-caution { background: var(--caution); }
.dot-danger { background: var(--danger); }
.dot-emergency { background: var(--emergency); }

/* ── search console ── */
.console {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-card); box-shadow: var(--shadow);
  padding: clamp(16px, 4vw, 26px); margin: 20px 0;
}
.console-head { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.console-head .stud { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
.console-head h2 { font-size: 1.05rem; margin: 0; }
.console-head .tag {
  margin-left: auto; font-family: "IBM Plex Mono", monospace; font-size: 11px;
  color: var(--muted-2); letter-spacing: 0.06em;
}
.search-wrap { position: relative; }
.search-input {
  width: 100%; font-size: clamp(1.05rem, 3.4vw, 1.35rem); font-weight: 500;
  padding: 16px 16px 16px 48px; border: 2px solid var(--line-strong);
  border-radius: var(--r-input); background: var(--paper); color: var(--ink);
  font-family: inherit; transition: border-color .15s ease;
}
.search-input:focus { outline: none; border-color: var(--accent); }
.search-wrap .icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--muted-2); pointer-events: none; }
.search-hint { font-size: 13px; color: var(--muted-2); margin: 8px 2px 0; }

/* ── result card (triage placard) ── */
.result { margin-top: 18px; }
.card {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-left: 6px solid var(--line-strong);
  border-radius: var(--r-card); padding: 18px 18px 16px 20px; box-shadow: var(--shadow);
  overflow: hidden;
}
.card.g-안전 { border-left-color: var(--safe); }
.card.g-주의 { border-left-color: var(--caution); }
.card.g-위험 { border-left-color: var(--danger); }
.card.g-응급 { border-left-color: var(--emergency); }

.card-top { display: flex; align-items: flex-start; gap: 12px; justify-content: space-between; }
.card-title { font-size: 1.28rem; margin: 0; font-weight: 700; }
.card-sub { font-size: 13px; color: var(--muted-2); margin: 2px 0 0; }

.stamp {
  flex: none; font-weight: 800; font-size: 0.92rem; letter-spacing: 0.02em;
  padding: 6px 14px; border-radius: var(--r-pill); border: 2px solid currentColor;
  text-transform: none; white-space: nowrap;
}
.stamp.g-안전 { color: var(--safe); background: var(--safe-wash); }
.stamp.g-주의 { color: var(--caution); background: var(--caution-wash); }
.stamp.g-위험 { color: var(--danger); background: var(--danger-wash); }
.stamp.g-응급 { color: var(--emergency); background: var(--emergency-wash); }

@keyframes stamp-in {
  0% { transform: scale(1.05) rotate(-1.5deg); opacity: 0; }
  100% { transform: scale(1) rotate(0); opacity: 1; }
}
.stamp-anim { animation: stamp-in 90ms ease-out; }

.card-rows { margin-top: 14px; display: grid; gap: 10px; }
.card-row { display: grid; grid-template-columns: 84px 1fr; gap: 10px; align-items: start; }
.card-row .k {
  font-family: "IBM Plex Mono", monospace; font-size: 12px; color: var(--muted-2);
  padding-top: 2px; letter-spacing: 0.02em;
}
.card-row .v { font-size: 15px; color: var(--ink); }
.card-row .v.muted { color: var(--muted); }
.src-link { font-size: 13px; }

.card-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 7px; font-weight: 600; font-size: 14px;
  padding: 9px 16px; border-radius: var(--r-input); border: 1px solid var(--line-strong);
  background: var(--surface); color: var(--ink); cursor: pointer; font-family: inherit;
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.06); }
.cp-link {
  background: #ff5a5f; color: #fff; border-color: #ff5a5f; font-weight: 700;
}
.cp-link:hover { filter: brightness(1.04); text-decoration: none; }

/* empty state */
.empty-state { text-align: center; padding: 24px 12px; color: var(--muted); }
.empty-state .big { font-size: 1.05rem; color: var(--ink); font-weight: 600; margin-bottom: 6px; }
.suggest-row { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 12px; }

/* alt candidates */
.alts { margin-top: 12px; }
.alts .alts-label { font-size: 12px; color: var(--muted-2); font-family: "IBM Plex Mono", monospace; margin-bottom: 6px; }
.alt-pill {
  display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 500;
  padding: 5px 11px; border-radius: var(--r-pill); border: 1px solid var(--line);
  background: var(--surface); cursor: pointer; margin: 0 6px 6px 0; color: var(--ink);
}
.alt-pill:hover { border-color: var(--accent); }
.alt-pill .mini { width: 8px; height: 8px; border-radius: 50%; }

/* ── quick pills (scroll-snap) ── */
.section { margin: 34px 0; }
.section > h2 { font-size: 1.22rem; margin: 0 0 4px; }
.section > .sub { color: var(--muted); font-size: 14px; margin: 0 0 14px; }
.pill-scroll {
  display: flex; gap: 10px; overflow-x: auto; padding: 4px 2px 12px;
  scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
}
.pill-scroll::-webkit-scrollbar { height: 6px; }
.pill-scroll::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 6px; }
.q-pill {
  scroll-snap-align: start; flex: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px;
  padding: 9px 15px; border-radius: var(--r-pill); border: 1px solid var(--line-strong);
  background: var(--surface); color: var(--ink);
}
.q-pill:hover { border-color: var(--accent); }
.q-pill .mini { width: 9px; height: 9px; border-radius: 50%; }

/* ── generic grid cards ── */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin-top: 6px; }
.mini-card {
  background: var(--surface); border: 1px solid var(--line); border-left: 5px solid var(--line-strong);
  border-radius: var(--r-card); padding: 14px 15px; cursor: pointer;
}
.mini-card:hover { border-color: var(--accent); }
.mini-card.g-안전 { border-left-color: var(--safe); }
.mini-card.g-주의 { border-left-color: var(--caution); }
.mini-card.g-위험 { border-left-color: var(--danger); }
.mini-card.g-응급 { border-left-color: var(--emergency); }
.mini-card h3 { font-size: 1.02rem; margin: 0 0 4px; display: flex; align-items: center; gap: 8px; justify-content: space-between; }
.mini-card p { font-size: 13px; color: var(--muted); margin: 0; }
.mini-stamp { font-size: 11px; font-weight: 800; padding: 2px 9px; border-radius: var(--r-pill); border: 1.5px solid currentColor; flex: none; }
.mini-stamp.g-안전 { color: var(--safe); }
.mini-stamp.g-주의 { color: var(--caution); }
.mini-stamp.g-위험 { color: var(--danger); }
.mini-stamp.g-응급 { color: var(--emergency); }

/* ── banner / callout ── */
.banner {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-card);
  padding: 18px 20px; box-shadow: var(--shadow);
}
.banner .b-body { flex: 1 1 260px; }
.banner h3 { margin: 0 0 4px; font-size: 1.08rem; }
.banner p { margin: 0; color: var(--muted); font-size: 14px; }

/* ── disclaimer strip ── */
.disclaimer {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--emergency-wash); border: 1px solid color-mix(in srgb, var(--emergency) 35%, transparent);
  border-radius: var(--r-card); padding: 13px 16px; margin: 20px 0; font-size: 14px; color: var(--ink);
}
.disclaimer .plus { color: var(--emergency); font-weight: 800; flex: none; }
.disclaimer b { color: var(--emergency); }

/* ── prose ── */
.prose { max-width: 68ch; }
.prose p { margin: 0 0 14px; color: var(--ink); }
.prose h2 { font-size: 1.28rem; margin: 30px 0 10px; }
.prose h3 { font-size: 1.08rem; margin: 22px 0 8px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; }
.prose li { margin-bottom: 7px; }
.prose strong { font-weight: 600; }
.prose .src { color: var(--muted-2); font-size: 13px; }

/* ── calculator ── */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 18px; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.tab {
  font-weight: 600; font-size: 14px; padding: 8px 14px; border-radius: var(--r-input);
  border: 1px solid var(--line-strong); background: var(--surface); color: var(--muted); cursor: pointer; font-family: inherit;
}
.tab:hover { color: var(--ink); }
.tab.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

.calc-panel { display: none; }
.calc-panel.active { display: block; }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.field input, .field select {
  width: 100%; font-size: 1rem; padding: 11px 12px; border: 1px solid var(--line-strong);
  border-radius: var(--r-input); background: var(--paper); color: var(--ink); font-family: inherit;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--accent); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.readout {
  margin-top: 18px; background: var(--ink); color: var(--paper);
  border-radius: var(--r-card); padding: 18px 20px; font-family: "IBM Plex Mono", monospace;
  border-left: 6px solid var(--muted);
}
.readout.g-안전 { border-left-color: var(--safe); }
.readout.g-주의 { border-left-color: var(--caution); }
.readout.g-위험 { border-left-color: var(--danger); }
.readout.g-응급 { border-left-color: var(--emergency); }
.readout .ro-line { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; flex-wrap: wrap; }
.readout .ro-num { font-size: clamp(1.6rem, 6vw, 2.2rem); font-weight: 600; letter-spacing: -0.02em; }
.readout .ro-unit { font-size: 0.95rem; opacity: 0.7; }
.readout .ro-grade { font-weight: 700; font-size: 0.95rem; padding: 4px 12px; border-radius: var(--r-pill); border: 2px solid currentColor; }
.readout .ro-grade.g-안전 { color: var(--safe); }
.readout .ro-grade.g-주의 { color: var(--caution); }
.readout .ro-grade.g-위험 { color: var(--danger); }
.readout .ro-grade.g-응급 { color: var(--emergency); }
.readout .ro-label { font-size: 0.98rem; margin: 6px 0; opacity: 0.95; }
.readout .ro-note { font-size: 0.8rem; opacity: 0.6; margin-top: 10px; font-family: "IBM Plex Sans KR", sans-serif; }

.calc-note { font-size: 13px; color: var(--muted); margin-top: 12px; }
.calc-note a { font-size: 13px; }

/* ── comparison table ── */
.table-wrap { overflow-x: auto; margin: 8px 0 4px; }
table.cmp { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 420px; }
table.cmp th, table.cmp td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
table.cmp th { font-weight: 700; color: var(--muted); background: var(--surface-2); font-size: 13px; }
table.cmp td.mono { font-family: "IBM Plex Mono", monospace; }

/* ── FAQ accordion ── */
.faq-item { border: 1px solid var(--line); border-radius: var(--r-card); margin-bottom: 10px; background: var(--surface); overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 16px 18px; font-weight: 600; font-size: 1.02rem;
  display: flex; align-items: center; gap: 10px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; margin-left: auto; color: var(--accent); font-weight: 700; font-size: 1.3rem; }
.faq-item[open] summary::after { content: "–"; }
.faq-item .faq-body { padding: 0 18px 18px; color: var(--ink); }
.faq-item .faq-body p { margin: 0 0 10px; }

/* ── source box / meta ── */
.sourcebox {
  background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-card);
  padding: 16px 18px; margin: 22px 0; font-size: 14px;
}
.sourcebox h3 { margin: 0 0 8px; font-size: 1rem; }
.sourcebox ul { margin: 0; padding-left: 18px; }
.sourcebox li { margin-bottom: 5px; color: var(--muted); }
.review-tag { font-family: "IBM Plex Mono", monospace; font-size: 12px; color: var(--muted-2); margin-top: 10px; }

/* ── footer ── */
footer {
  border-top: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 60%, transparent);
  padding: 28px clamp(14px, 4vw, 28px); font-size: 13px; color: var(--muted);
}
footer .foot-inner { max-width: var(--maxw); margin: 0 auto; }
footer .foot-src { margin-bottom: 14px; }
footer .sib { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-bottom: 12px; }
footer .sib a { color: var(--muted); }
footer .foot-legal { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
footer .foot-legal a { color: var(--muted); }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .stamp-anim { animation: none; }
  * { scroll-behavior: auto; }
}

@media (max-width: 560px) {
  .card-row { grid-template-columns: 72px 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .nav-links { gap: 2px; }
  .nav-links a { padding: 5px 7px; font-size: 13px; }
}