/* ─────────────────────────────────────────────────────────────
   월드톡 디자인 시스템 v2 — "항공우편으로 도착한 세계 화제"
   레이아웃: 에어메일 띠 → 로고 → 끈적한 나라 탭 → 소인 찍힌 지면 제목 → 2×3 카드 지면 → 다른 나라 지면 → 짙은 남색 바닥
   ───────────────────────────────────────────────────────────── */
:root{
  /* 색: 항공우편 봉투의 빨강·파랑 + 차가운 종이색 */
  --bg:#F2F4F8;          /* 페이지 바탕 */
  --surface:#FFFFFF;     /* 카드·편지지 */
  --ink:#0F1730;         /* 제목·강조 */
  --text:#3A4358;        /* 본문 */
  --muted:#6F7990;       /* 날짜·설명 */
  --line:#E0E5EE;        /* 구분선 */
  --chip:#EDF0F6;        /* 칩 바탕 */
  --red:#E23B3B;         /* 항공우편 빨강 (소인·순번·날짜 강조) */
  --blue:#1E45C8;        /* 항공우편 파랑 (로고·링크) */
  --blue-soft:#E7EDFF;   /* 발신지 라벨 바탕 */
  --foot:#0F1730;        /* 바닥 띠 */
  --foot-text:#C8CFDD;
  --shadow:0 1px 2px rgba(15,23,48,.04),0 10px 30px -12px rgba(15,23,48,.14);
  /* 글꼴: 굵은 디스플레이 + 깔끔한 고딕 + 숫자용 모노 */
  --display:'Black Han Sans','Gothic A1','Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  --sans:'Gothic A1','Apple SD Gothic Neo','Malgun Gothic','Noto Sans KR',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --radius:18px;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0B1020; --surface:#131A2C; --ink:#EEF2FA; --text:#C3CAD9; --muted:#8B94A9; --line:#232C44;
    --chip:#1B2338; --red:#FF6B6B; --blue:#7F9DFF; --blue-soft:#1C2647; --foot:#070B16; --foot-text:#AEB6C8;
    --shadow:0 1px 2px rgba(0,0,0,.3); color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0B1020; --surface:#131A2C; --ink:#EEF2FA; --text:#C3CAD9; --muted:#8B94A9; --line:#232C44;
  --chip:#1B2338; --red:#FF6B6B; --blue:#7F9DFF; --blue-soft:#1C2647; --foot:#070B16; --foot-text:#AEB6C8;
  --shadow:0 1px 2px rgba(0,0,0,.3); color-scheme:dark;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.7;word-break:keep-all;overflow-wrap:anywhere;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
::selection{background:var(--blue);color:#fff}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}
.wrap{max-width:1120px;margin:0 auto;padding-inline:16px}
@media (min-width:700px){.wrap{padding-inline:24px}}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 에어메일 띠 — 사이트의 서명 */
.air-stripe{height:6px;background:repeating-linear-gradient(-45deg,var(--red) 0 14px,var(--surface) 14px 21px,var(--blue) 21px 35px,var(--surface) 35px 42px)}

/* 머리 */
.mast-in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:16px 12px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.logo-mark{width:38px;height:38px;flex:none}
.lm-bubble{fill:var(--blue)}
.lm-globe{fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round}
.lm-dot{fill:var(--red);stroke:var(--bg);stroke-width:2.5}
.logo-word{font-family:var(--display);font-size:30px;line-height:1;letter-spacing:-.01em}
.logo-word em{font-style:normal;color:var(--red)}
.mast-meta{display:flex;flex-direction:column;align-items:flex-end;gap:2px;text-align:right}
.mast-date{font-weight:700;font-size:14px;color:var(--ink)}
.mast-sub{font-size:12.5px;color:var(--muted)}

/* 나라 탭 */
.tabs{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--bg);background:color-mix(in srgb,var(--bg) 86%,transparent);-webkit-backdrop-filter:saturate(1.4) blur(12px);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.tabs-in{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-block:10px;-webkit-overflow-scrolling:touch}
.tabs-in::-webkit-scrollbar{display:none}
.tabs a{flex:none;display:inline-flex;align-items:center;height:38px;padding-inline:16px;border-radius:999px;font-weight:700;font-size:15px;text-decoration:none;color:var(--text);transition:background .15s,color .15s}
.tabs a:hover{background:var(--chip);color:var(--ink)}
.tabs a.on{background:var(--ink);color:var(--surface)}

/* 지면 제목 (히어로) */
.hero{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px 20px;padding-block:28px 6px}
.kicker{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 10px;font-size:13px;font-weight:700;color:var(--muted)}
.from{display:inline-flex;align-items:center;gap:6px;height:26px;padding-inline:10px;border-radius:999px;background:var(--blue-soft);color:var(--blue);font-size:12.5px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.from::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
a.from{text-decoration:none}
a.from:hover{filter:brightness(.96)}
.kicker time{font-family:var(--mono);font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.hero h1{margin:0;font-family:var(--display);font-weight:400;font-size:clamp(34px,6.4vw,54px);line-height:1.08;color:var(--ink);letter-spacing:-.01em;text-wrap:balance}
.hero-sub{margin:10px 0 0;font-size:15.5px;color:var(--muted);max-width:52ch}
.hero-sub b{color:var(--ink)}
.postmark{width:clamp(118px,22vw,200px);color:var(--red);opacity:.88;transform:rotate(-8deg);margin-right:-4px}
.postmark svg{display:block;width:100%;height:auto;overflow:visible}
.pm-ring{fill:none;stroke:currentColor}
.pm-wave{fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round}
.pm-text{fill:currentColor;font-family:var(--sans);font-weight:800}
.pm-num{fill:currentColor;font-family:var(--mono);font-weight:600}

/* 날짜 바 */
.datebar{margin:16px -16px 0;padding-inline:16px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
@media (min-width:700px){.datebar{margin-inline:-24px;padding-inline:24px}}
.datebar::-webkit-scrollbar{display:none}
.datebar-in{display:flex;gap:8px;width:max-content;padding-bottom:4px}
.chip{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:64px;height:54px;padding-inline:10px;border-radius:14px;background:var(--surface);border:1px solid var(--line);color:var(--text);text-decoration:none;line-height:1.2;transition:border-color .15s}
.chip b{font-family:var(--mono);font-weight:600;font-size:15px;font-variant-numeric:tabular-nums;color:var(--ink)}
.chip span{font-size:12px;color:var(--muted);font-weight:700}
a.chip:hover{border-color:var(--ink)}
.chip.on{background:var(--red);border-color:var(--red)}
.chip.on b,.chip.on span{color:#fff}
.chip.off{opacity:.4}

/* 지면 (2×3) */
.sheet{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;margin-block:22px 8px}
@media (min-width:880px){.sheet{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}}
.story{position:relative;display:flex;flex-direction:column;min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;scroll-margin-top:72px}
.story:target{outline:3px solid var(--red);outline-offset:3px}
.ph{margin:0}
.ph-frame{position:relative;aspect-ratio:16/9;max-width:100%;overflow:hidden;background:var(--chip)}
.ph-frame img{width:100%;height:100%;object-fit:cover}
.rank{position:absolute;left:14px;top:14px;display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--surface);color:var(--red);font-family:var(--mono);font-weight:600;font-size:16px;box-shadow:0 2px 10px rgba(0,0,0,.18)}
.ai-badge{position:absolute;right:10px;bottom:10px;background:rgba(10,14,28,.72);color:#fff;font-size:11px;padding:4px 8px;border-radius:6px}
.ph figcaption{padding:10px 22px 0;font-size:12px;line-height:1.55;color:var(--muted)}
.cap-desc{color:var(--text)}
.cap-credit a{text-decoration:none;border-bottom:1px solid var(--line)}
.cap-credit a:hover{color:var(--ink);border-color:var(--ink)}
/* 사진이 없을 때 기본 그림 */
.ph-fallback .ph-frame{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#fff;background:linear-gradient(135deg,#1E45C8,#0F1730 70%)}
.ph-fallback .ph-frame::before{content:"";position:absolute;inset:0 0 auto;height:8px;background:repeating-linear-gradient(-45deg,#E23B3B 0 14px,#fff 14px 21px,#1E45C8 21px 35px,#fff 35px 42px)}
.fb-name{font-family:var(--display);font-size:clamp(40px,8vw,56px);line-height:1}
.fb-brand{font-size:12px;letter-spacing:.24em;opacity:.8}
.story-body{display:flex;flex-direction:column;gap:12px;padding:18px 22px 6px}
.meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.meta time{font-family:var(--mono);font-weight:500;font-variant-numeric:tabular-nums}
.share{margin-left:auto;display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--muted);cursor:pointer;transition:color .15s,border-color .15s}
.share svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.share:hover{color:var(--ink);border-color:var(--ink)}
.story h2{margin:0;font-family:var(--sans);font-weight:800;font-size:clamp(19px,.6vw + 16px,22px);line-height:1.42;letter-spacing:-.028em;color:var(--ink);text-wrap:balance}
.story p{margin:0;font-size:16px;line-height:1.82;letter-spacing:-.006em;color:var(--text)}
.more{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;margin-top:2px;padding:8px 14px;border-radius:999px;background:var(--blue-soft);color:var(--blue);font-weight:800;font-size:14px;text-decoration:none}
.more:hover{filter:brightness(.97)}
.src{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding:16px 22px 20px}
.src-row{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding-top:14px;border-top:1px solid var(--line);font-size:13px}
.src-label{margin-right:4px;font-weight:800;color:var(--ink)}
.src-chip{display:inline-flex;align-items:center;height:28px;padding-inline:10px;border-radius:999px;background:var(--chip);color:var(--ink);font-weight:600;text-decoration:none;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.src-chip:hover{background:var(--line)}
.src-lang{color:var(--muted)}
.btns{display:flex;gap:8px}
.btn{flex:1 1 0;min-width:0;display:inline-flex;align-items:center;justify-content:center;gap:6px;height:46px;padding-inline:12px;border-radius:999px;font-size:14.5px;font-weight:800;text-decoration:none;white-space:nowrap;transition:transform .12s,background .15s,border-color .15s}
.btn-solid{background:var(--ink);color:var(--surface)}
.btn-solid:hover{background:var(--blue)}
.btn-line{border:1.5px solid var(--line);color:var(--ink);background:var(--surface)}
.btn-line:hover{border-color:var(--ink)}
.btn:active{transform:scale(.98)}
.btn-label{overflow:hidden;text-overflow:ellipsis}
.btn .arr{font-family:var(--mono);font-weight:600}

/* 광고 자리 */
.ad-row{grid-column:1/-1}
.ad-ph{position:relative;display:flex;align-items:center;justify-content:center;height:120px;border:1.5px dashed var(--line);border-radius:var(--radius);color:var(--muted);font-size:13px;background:repeating-linear-gradient(-45deg,transparent 0 12px,color-mix(in srgb,var(--line) 45%,transparent) 12px 24px)}

/* 다른 나라 지면 */
.others{margin-top:40px}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px}
.sec-head h3{margin:0;font-family:var(--display);font-weight:400;font-size:26px;color:var(--ink)}
.sec-head p{margin:0;font-size:13.5px;color:var(--muted)}
.others-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
@media (min-width:700px){
  .others-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .others-grid.n5 .other:first-child,.others-grid.n3 .other:first-child{grid-column:1/-1}
}
@media (min-width:1000px){
  .others-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .others-grid.n3 .other:first-child{grid-column:auto}
  /* 5개일 때: 윗줄 2개(넓게) + 아랫줄 3개로 빈칸 없이 */
  .others-grid.n5{grid-template-columns:repeat(6,minmax(0,1fr))}
  .others-grid.n5 .other{grid-column:span 2}
  .others-grid.n5 .other:nth-child(-n+2){grid-column:span 3}
}
.other{display:flex;flex-direction:column;gap:10px;padding:16px 18px;border-radius:16px;background:var(--surface);border:1px solid var(--line);text-decoration:none;transition:border-color .15s}
.other:hover{border-color:var(--ink)}
.other .from{align-self:flex-start}
.other-t{font-weight:800;font-size:16px;line-height:1.5;letter-spacing:-.02em;color:var(--ink)}
.other-go{margin-top:auto;font-size:13px;font-weight:700;color:var(--muted)}

/* 안내 문서 (편지지) */
.doc-hero{padding-block:30px 6px}
.doc-hero h1{margin:0;font-family:var(--display);font-weight:400;font-size:clamp(32px,5vw,44px);color:var(--ink)}
.letter{max-width:780px;margin-block:18px 8px;padding:28px clamp(20px,4vw,40px);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.letter h2{margin:28px 0 8px;font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.letter h2:first-child{margin-top:0}
.letter p,.letter li{font-size:15.5px;line-height:1.85;color:var(--text)}
.letter ul{padding-left:20px}
.letter a{color:var(--blue)}
.letter a.btn-solid{color:var(--surface)}
.letter .contact-btn{min-width:220px;margin-block:4px}
.big-mail{font-size:20px !important;font-weight:800;color:var(--ink) !important}

/* 바닥 */
.foot{margin-top:56px;background:var(--foot);color:var(--foot-text)}
.foot .air-stripe{background:repeating-linear-gradient(-45deg,#E23B3B 0 14px,var(--foot) 14px 21px,#5B7CF0 21px 35px,var(--foot) 35px 42px)}
.foot-in{display:grid;gap:18px;padding-block:32px 40px}
.foot .logo{color:#fff}
.foot .lm-dot{stroke:var(--foot)}
.foot .logo-word{font-size:26px}
.foot-tag{margin:6px 0 0;font-size:13.5px}
.foot-links{display:flex;flex-wrap:wrap;gap:8px}
.foot-links a{display:inline-flex;align-items:center;height:34px;padding-inline:14px;border-radius:999px;border:1px solid rgba(255,255,255,.16);color:#fff;font-size:13.5px;font-weight:700;text-decoration:none}
.foot-links a:hover{background:rgba(255,255,255,.08)}
.foot-notes p{margin:4px 0;font-size:12.5px;line-height:1.75}
.copy{margin-top:10px !important;font-family:var(--mono);font-size:12px !important;opacity:.7}

/* 알림 */
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translateX(-50%) translateY(16px);max-width:calc(100% - 32px);background:var(--ink);color:var(--surface);padding:11px 18px;border-radius:999px;font-size:14px;font-weight:700;opacity:0;pointer-events:none;transition:.25s;z-index:50}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* 폰 */
@media (max-width:560px){
  .mast-sub{display:none}
  .logo-word{font-size:27px}
  .logo-mark{width:34px;height:34px}
  .hero{padding-block:22px 4px;gap:8px 12px}
  .story-body{padding:16px 18px 4px}
  .ph figcaption{padding:9px 18px 0}
  .src{padding:14px 18px 18px}
  .btns .lg{display:none}
  .btn{height:44px;font-size:14px}
}
@media (prefers-reduced-motion: reduce){*{transition:none !important;animation:none !important}}