/* ============================================================
   텅텅 (TENTEN) — 공통 스타일
   컨셉: 2000년대 개인 홈페이지 감성의 병맛. 형광색, 워드아트, 두꺼운 검정 테두리.
   단, 문서 페이지 본문은 읽을 수 있게 유지한다.
   ============================================================ */

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

:root {
  --hot: #ff2d95;
  --yellow: #ffe600;
  --cyan: #00e5ff;
  --lime: #7cff3f;
  --purple: #9b2dff;
  --cream: #fffbe8;
  --ink: #1a1a1a;
  --ink-soft: #55504a;
  --line: rgba(0, 0, 0, 0.15);
  --wrap: 900px;

  --font-body: "Apple SD Gothic Neo", "Malgun Gothic", "맑은 고딕", sans-serif;
  --font-meme: "궁서", Gungsuh, GungsuhChe, "HYgsrB", "AppleMyungjo", serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  min-height: 100vh;
  line-height: 1.75;
  color: var(--ink);
  position: relative;
  background-color: #1b0033;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.11) 1.5px, transparent 1.6px),
    linear-gradient(160deg, #2d0a4e 0%, #6b0f5a 48%, #c2125e 100%);
  background-size: 22px 22px, cover;
  background-attachment: fixed;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

/* 만화 집중선. 아주 느리게 돌아서 화면이 살아 있는 느낌만 준다. */
body::before {
  content: '';
  position: fixed;
  inset: -60%;
  z-index: -1;
  pointer-events: none;
  background: repeating-conic-gradient(from 0deg at 50% 50%,
      rgba(255, 255, 255, 0.085) 0deg 5deg,
      transparent 5deg 12deg);
  animation: spin 90s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- 워드아트 ---------- */

.wordart {
  background: linear-gradient(90deg, #ff2d95, #ffe600, #00e5ff, #7cff3f, #ff2d95);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: rainbow 2.5s linear infinite;
  filter:
    drop-shadow(2px 2px 0 #000) drop-shadow(-2px -2px 0 #000)
    drop-shadow(2px -2px 0 #000) drop-shadow(-2px 2px 0 #000);
}

@keyframes rainbow {
  to { background-position: 300% 50%; }
}

@keyframes wobble {
  0%, 100% { transform: rotate(-2.5deg); }
  50% { transform: rotate(2.5deg); }
}

/* ---------- 상단바 ---------- */

.topbar {
  background: #000;
  border-bottom: 5px solid var(--yellow);
}

.topbar-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  font-family: var(--font-meme);
  font-size: 1.6rem;
  font-weight: 900;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
  display: inline-block;
  animation: wobble 1.6s ease-in-out infinite;
}

.brand small {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  color: var(--yellow);
  vertical-align: middle;
  margin-left: 4px;
  -webkit-text-fill-color: var(--yellow);
}

/* min-width:0 이 없으면 플렉스 항목이 내용 폭만큼 버티면서 화면 밖으로 삐져나간다 */
.nav { display: flex; gap: 8px; flex-wrap: wrap; min-width: 0; }

.nav a {
  color: #000;
  background: var(--yellow);
  border: 2px solid #000;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 900;
  padding: 3px 12px;
  box-shadow: 2px 2px 0 #000;
}

.nav a:hover { background: var(--lime); transform: translate(1px, 1px); box-shadow: 1px 1px 0 #000; }

.nav a[aria-current="page"] {
  background: var(--hot);
  color: #fff;
}

/* ---------- 문서형 본문 (여기는 읽히게) ---------- */

main { max-width: var(--wrap); margin: 0 auto; }

.doc { padding: 24px 20px; }

.card {
  background: var(--cream);
  border: 4px solid #000;
  border-radius: 4px;
  padding: 40px;
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.75);
}

@media (max-width: 600px) {
  .card { padding: 24px 18px; box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.75); }
}

.card h1 {
  font-family: var(--font-meme);
  font-size: 2.1rem;
  line-height: 1.3;
  margin-bottom: 8px;
}

.card h2 {
  font-family: var(--font-meme);
  font-size: 1.4rem;
  margin: 34px 0 12px;
  padding: 4px 0 4px 12px;
  border-left: 8px solid var(--hot);
  background: linear-gradient(90deg, rgba(255, 45, 149, 0.14), transparent);
}

.card h3 { font-size: 1.05rem; font-weight: 900; margin: 22px 0 6px; }

.card p, .card ul, .card ol, .card table { margin-bottom: 14px; }
.card ul, .card ol { padding-left: 22px; }
.card li { margin-bottom: 6px; }
.card li::marker { color: var(--hot); font-weight: 900; }

.card a {
  color: #0033cc;
  font-weight: 700;
  text-decoration: underline wavy var(--hot);
  text-underline-offset: 3px;
}

.card b { background: linear-gradient(transparent 55%, var(--yellow) 55%); }

.lede { color: var(--ink-soft); font-size: 1.02rem; margin-bottom: 28px; }
.updated { font-size: 0.82rem; color: var(--ink-soft); margin-bottom: 28px; }

.card table { width: 100%; border-collapse: collapse; font-size: 0.94rem; }

.card th, .card td {
  text-align: left;
  padding: 9px 12px;
  border: 2px solid #000;
  vertical-align: top;
}

.card th { background: var(--yellow); font-weight: 900; white-space: nowrap; }

.note {
  background: var(--cyan);
  border: 3px solid #000;
  border-radius: 4px;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.7);
  padding: 14px 18px;
  font-size: 0.93rem;
  font-weight: 600;
  margin: 22px 0;
}

.cta {
  display: inline-block;
  font-family: var(--font-meme);
  background: var(--hot);
  color: #fff !important;
  text-decoration: none !important;
  font-size: 1.2rem;
  font-weight: 900;
  padding: 14px 30px;
  border: 4px solid #000;
  border-radius: 4px;
  box-shadow: 6px 6px 0 #000;
  margin-top: 10px;
}

.cta:hover { background: var(--purple); transform: translate(3px, 3px); box-shadow: 3px 3px 0 #000; }

/* ---------- 광고 ---------- */

.ad {
  width: 100%;
  max-width: var(--wrap);
  margin: 22px auto;
  padding: 0 20px;
  text-align: center;
}

.ad-top { margin: 14px auto 4px; }
.ad-bottom { margin-top: 30px; }

.ad .ad-label {
  display: block;
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 4px;
  visibility: hidden;
}

.ad[data-filled] .ad-label { visibility: visible; }
.ad ins { display: block; }

/* ---------- 푸터 ---------- */

.site-footer {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 24px 20px 44px;
  color: #fff;
  font-size: 0.8rem;
  line-height: 1.9;
  text-align: center;
  text-shadow: 1px 1px 0 #000;
}

.site-footer a { color: var(--yellow); font-weight: 700; }
.site-footer nav { margin-bottom: 4px; }
.site-footer nav a { margin: 0 8px; white-space: nowrap; }

/* ---------- 좁은 화면 ---------- */

@media (max-width: 640px) {
  .topbar-inner { gap: 8px; padding: 9px 12px; }
  .brand { font-size: 1.16rem; }
  .nav { width: 100%; gap: 6px; }
  .nav a { font-size: 0.72rem; padding: 2px 9px; box-shadow: 1.5px 1.5px 0 #000; }
  .ad { padding: 0 12px; }
  .site-footer { padding: 20px 14px 34px; font-size: 0.74rem; }
  .site-footer nav a { margin: 0 5px; }
}

/* 가로로 눕힌 휴대폰 — 세로 공간이 극히 부족하다 */
@media (max-height: 520px) and (orientation: landscape) {
  .topbar-inner { padding: 5px 12px; }
  .brand { font-size: 1.05rem; }
  .brand small { display: none; }
  .nav a { font-size: 0.7rem; padding: 1px 8px; }
}

/* 과한 움직임을 원치 않는 사용자 존중 */
@media (prefers-reduced-motion: reduce) {
  body::before, .wordart, .brand { animation: none !important; }
}