/* ===== DateDB design system ===== */
:root{
  --bg:#f4f5f8; --surface:#ffffff; --surface-2:#f1f3f6; --surface-3:#e9ecf1;
  --text:#161a20; --text-2:#586071; --text-3:#929aa8;
  --border:#e7e9ee; --border-2:#d9dce3;
  --brand:#2b59f6; --brand-2:#1d44d6; --brand-tint:#eef2ff; --on-brand:#fff;
  --sun:#e5484d; --sat:#3b6fe0; --son:#0c9b6c; --term:#0c9b6c; --amber:#b8780a; --violet:#7a5af5;
  --holiday-bg:#fceded;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 2px 6px rgba(16,24,40,.05);
  --shadow-lg:0 8px 30px rgba(16,24,40,.10);
  --radius:16px; --radius-sm:11px; --radius-pill:999px;
  --maxw:1060px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0b0d12; --surface:#14171e; --surface-2:#1a1e27; --surface-3:#222732;
  --text:#e9ebf0; --text-2:#99a1b0; --text-3:#69717f;
  --border:#242a34; --border-2:#313845;
  --brand:#6586ff; --brand-2:#88a0ff; --brand-tint:#17203c; --on-brand:#0b0d12;
  --sun:#ff7174; --sat:#79a3ff; --son:#2bd49b; --term:#2bd49b; --amber:#e0a93a; --violet:#a690ff;
  --holiday-bg:#2a161a;
  --shadow:0 1px 2px rgba(0,0,0,.4); --shadow-lg:0 10px 34px rgba(0,0,0,.55);
}}
[data-theme="dark"]{
  --bg:#0b0d12; --surface:#14171e; --surface-2:#1a1e27; --surface-3:#222732;
  --text:#e9ebf0; --text-2:#99a1b0; --text-3:#69717f;
  --border:#242a34; --border-2:#313845;
  --brand:#6586ff; --brand-2:#88a0ff; --brand-tint:#17203c; --on-brand:#0b0d12;
  --sun:#ff7174; --sat:#79a3ff; --son:#2bd49b; --term:#2bd49b; --amber:#e0a93a; --violet:#a690ff;
  --holiday-bg:#2a161a;
  --shadow:0 1px 2px rgba(0,0,0,.4); --shadow-lg:0 10px 34px rgba(0,0,0,.55);
}

*{box-sizing:border-box}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:"Pretendard Variable",Pretendard,-apple-system,system-ui,"Segoe UI","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  line-height:1.6;letter-spacing:-.01em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.02em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 18px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ===== header ===== */
.site-header{position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--surface) 82%,transparent);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:18px;height:60px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.32rem;letter-spacing:-.03em;flex-shrink:0}
.brand .logo{width:28px;height:28px;display:block}
.nav{display:flex;gap:3px;margin-left:6px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{padding:8px 12px;border-radius:10px;font-size:.93rem;font-weight:600;color:var(--text-2);white-space:nowrap;transition:.15s}
.nav a:hover{background:var(--surface-2);color:var(--text)}
.nav a.active{background:var(--brand-tint);color:var(--brand-2)}
.theme-toggle{flex-shrink:0;width:38px;height:38px;display:grid;place-items:center;border-radius:10px;
  border:1px solid var(--border);background:var(--surface);color:var(--text-2);cursor:pointer;transition:.15s}
.theme-toggle:hover{background:var(--surface-2);color:var(--text)}
.theme-toggle svg{width:19px;height:19px}
.theme-toggle .i-moon{display:none}
[data-theme="dark"] .theme-toggle .i-sun{display:none}
[data-theme="dark"] .theme-toggle .i-moon{display:block}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .theme-toggle .i-sun{display:none}
  :root:not([data-theme="light"]) .theme-toggle .i-moon{display:block}}

main.container{padding-top:26px;padding-bottom:64px}

/* ===== hero ===== */
.hero{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px 28px;margin-bottom:18px}
.hero-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.hero-badge{font-size:.78rem;font-weight:700;letter-spacing:.02em;color:var(--brand-2);
  background:var(--brand-tint);padding:4px 11px;border-radius:var(--radius-pill)}
.hero-wd{font-size:.82rem;font-weight:700;padding:4px 11px;border-radius:var(--radius-pill);
  background:var(--surface-2);color:var(--text-2)}
.hero-wd.sun{background:var(--holiday-bg);color:var(--sun)}
.hero-wd.sat{background:color-mix(in srgb,var(--sat) 14%,transparent);color:var(--sat)}
.hero-date{font-size:2.8rem;line-height:1.08;font-weight:800;letter-spacing:-.03em;margin:2px 0 6px}
.hero-date .dot{color:var(--text-3);margin:0 .04em;font-weight:600}
.hero-sub{margin:0;color:var(--text-2);font-size:1.02rem}
.hero-sub b{color:var(--text);font-weight:700}
.badges{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}
.badge{font-size:.82rem;font-weight:600;padding:5px 11px;border-radius:var(--radius-pill);
  background:var(--surface-2);color:var(--text-2);border:1px solid transparent}
.badge-holiday{background:var(--holiday-bg);color:var(--sun)}
.badge-term{background:color-mix(in srgb,var(--term) 13%,transparent);color:var(--term)}
.badge-anniv{background:color-mix(in srgb,var(--violet) 14%,transparent);color:var(--violet)}
.badge-sundry{background:color-mix(in srgb,var(--amber) 15%,transparent);color:var(--amber)}
.badge-son{background:transparent;border-color:var(--son);color:var(--son)}

/* ===== card / detail list ===== */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:8px 22px;margin-bottom:18px}
.dl .field{display:flex;gap:14px;padding:13px 0;border-top:1px solid var(--border)}
.dl .field:first-child{border-top:0}
.field-label{flex:0 0 96px;color:var(--text-3);font-weight:600;font-size:.92rem}
.field-value{flex:1;font-size:.97rem}
.field-value b{font-weight:700}

/* ===== calendars ===== */
.grids{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
@media(max-width:760px){.grids{grid-template-columns:1fr}}
.calendar{margin:0;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 16px 14px}
.cal-title{font-weight:700;font-size:1.05rem;text-align:center;margin-bottom:12px;letter-spacing:-.02em}
.cal-caption{font-size:.8rem;color:var(--son);margin-top:11px;text-align:center;font-weight:600}
.cal-grid{width:100%;border-collapse:separate;border-spacing:4px;table-layout:fixed}
.cal-grid th{font-size:.74rem;font-weight:700;color:var(--text-3);padding:0 0 6px}
.cal-grid th.sun{color:var(--sun)} .cal-grid th.sat{color:var(--sat)}
.cal-grid td{height:94px;vertical-align:top;padding:0}
.cal-grid td.empty{background:transparent}
.cell{display:flex;flex-direction:column;gap:1px;height:100%;border-radius:var(--radius-sm);
  padding:5px 5px 4px;border:1px solid transparent;transition:.12s;position:relative}
.cell:hover{background:var(--surface-2)}
.cell .dnum{font-weight:700;font-size:.92rem;width:23px;height:23px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-pill)}
.cell .sub{font-size:.66rem;color:var(--text-3);line-height:1.05;padding-left:2px}
.cell .gz{display:flex;flex-direction:column;font-size:.56rem;color:var(--text-3);line-height:1.18;letter-spacing:-.04em;margin-top:2px;opacity:.92}
.cell .gz i{font-style:normal}
.cell.sun .dnum{color:var(--sun)} .cell.sat .dnum{color:var(--sat)}
.cell.holiday{background:var(--holiday-bg)}
.cell.holiday .dnum{color:var(--sun)}
.cell.son::after{content:"";position:absolute;top:7px;right:7px;width:5px;height:5px;border-radius:50%;background:var(--son)}
.cell.today .dnum{background:var(--brand);color:var(--on-brand)}
.cell.current{background:var(--brand-tint);border-color:color-mix(in srgb,var(--brand) 45%,transparent);box-shadow:0 0 0 1px color-mix(in srgb,var(--brand) 35%,transparent) inset}
.cell .tag{font-size:.62rem;font-weight:600;color:var(--sun);line-height:1.1;margin-top:auto;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cell .tag.term{color:var(--term)}

/* ===== day nav ===== */
.daynav{display:flex;justify-content:space-between;align-items:center;gap:10px}
.daynav a{display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-pill);padding:9px 16px;font-weight:600;font-size:.92rem;color:var(--text-2);
  box-shadow:var(--shadow);transition:.15s}
.daynav a:hover{border-color:var(--brand);color:var(--brand)}
.daynav .convlink{background:var(--brand);color:var(--on-brand);border-color:var(--brand)}
.daynav .convlink:hover{background:var(--brand-2);color:var(--on-brand)}
.daynav span{flex:0 0 auto}

/* ===== page head (월/연 달력) ===== */
.page-head{margin-bottom:18px}
.page-head h1{font-size:1.7rem;margin-bottom:14px;letter-spacing:-.03em}
.month-full .calendar{padding:20px}
.month-full .cal-grid td{height:110px}
.month-full .cell .dnum{font-size:1rem}
.month-full .cell .sub{font-size:.72rem}
.month-full .cell .gz{font-size:.62rem;line-height:1.2}
.month-full .cell .tag{font-size:.68rem}

/* ===== annual: 12 mini months (한 줄에 2개, 큰 화면 3개) ===== */
.year-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(min-width:1280px){.year-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.year-grid{grid-template-columns:1fr}}
.mini-link{display:block;transition:.15s}
.mini-link:hover{transform:translateY(-2px)}
.mini-link:hover .calendar{border-color:var(--brand);box-shadow:var(--shadow-lg)}
.year-grid .calendar{padding:16px 14px 14px}
.year-grid .cal-title{font-size:1.02rem;margin-bottom:10px}
.year-grid .cal-grid{border-spacing:2px}
.year-grid .cal-grid th{font-size:.68rem;padding:0 0 4px}
.year-grid .cal-grid td{height:auto}
/* 미니 셀: 렌더러가 class="mini …"(접두 cell 없음)로 출력 → .mini 로 매칭 */
.year-grid .mini{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;
  text-align:center;padding:4px 0 5px;border-radius:8px;color:var(--text-2);line-height:1.1}
.year-grid .mini b{font-size:.88rem;font-weight:700}
.year-grid .mini i{font-size:.58rem;font-style:normal;color:var(--text-3);letter-spacing:-.04em}
.year-grid .mini.sun b{color:var(--sun)} .year-grid .mini.sat b{color:var(--sat)}
.year-grid .mini.holiday{background:var(--holiday-bg)}
.year-grid .mini.holiday b{color:var(--sun)}
.year-grid .mini.holiday i{color:color-mix(in srgb,var(--sun) 65%,var(--text-3))}
.year-grid .mini.today b{background:var(--brand);color:var(--on-brand);width:20px;height:20px;border-radius:var(--radius-pill);display:inline-flex;align-items:center;justify-content:center}

/* ===== footer ===== */
.site-footer{border-top:1px solid var(--border);background:var(--surface);color:var(--text-3);font-size:.86rem}
.site-footer .container{padding-top:26px;padding-bottom:34px}
.site-footer .foot-brand{font-weight:800;font-size:1.05rem;color:var(--text-2);letter-spacing:-.03em;margin-bottom:6px}
.site-footer a{color:var(--text-2);text-decoration:underline;text-underline-offset:2px}

@media(max-width:560px){
  .hero{padding:20px 18px} .hero-date{font-size:2.2rem}
  .card{padding:6px 16px} .field-label{flex-basis:78px}
  .daynav a{padding:8px 12px;font-size:.86rem}
  .page-head h1{font-size:1.4rem}
}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ===== tools ===== */
.toolgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:820px){.toolgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.toolgrid{grid-template-columns:1fr}}
.toolcard{display:flex;flex-direction:column;gap:5px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 18px;transition:.15s}
.toolcard:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.tc-title{font-weight:700;font-size:1.05rem;letter-spacing:-.02em}
.tc-desc{color:var(--text-2);font-size:.9rem;line-height:1.5}

.card-h{font-size:1.05rem;font-weight:700;margin:14px 0 12px;letter-spacing:-.02em}
.intro{color:var(--text-2);font-size:.95rem}.intro p{margin:14px 0}
.intro a,.goodlist a,.mtable a{color:var(--brand-2);font-weight:600}

/* forms */
.form-card{padding:20px 22px}
.dateform label{display:block;font-size:.9rem;font-weight:600;color:var(--text-3);margin-bottom:8px}
.dateform-row{display:flex;gap:10px;flex-wrap:wrap}
.dateform-hint{margin:10px 0 0;font-size:.85rem;color:var(--text-3)}
input[type=date],input[type=month],input[type=number],select{
  font:inherit;color:var(--text);background:var(--surface-2);border:1px solid var(--border-2);
  border-radius:var(--radius-sm);padding:11px 13px;min-height:44px;flex:1;min-width:130px}
input::-webkit-calendar-picker-indicator{cursor:pointer;opacity:.6}
.dateform button,.calc button{font:inherit;font-weight:700;color:var(--on-brand);background:var(--brand);
  border:0;border-radius:var(--radius-sm);padding:11px 22px;min-height:44px;cursor:pointer;transition:.15s;flex:0 0 auto}
.dateform button:hover{background:var(--brand-2)}

/* milestone table */
.mtable{width:100%;border-collapse:collapse;font-size:.95rem}
.mtable th{text-align:left;color:var(--text-3);font-size:.82rem;font-weight:700;padding:0 0 8px}
.mtable td{padding:11px 0;border-top:1px solid var(--border)}
.mtable td:first-child{color:var(--text-2);font-weight:600;width:38%}
.mtable .mlun,.mtable th:last-child{color:var(--text-3);font-size:.86rem;text-align:right}
.mtable td:last-child{text-align:right}
.mtable tr.hl td{color:var(--brand-2);font-weight:700}

/* calc */
.calc-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.calc-tilde{color:var(--text-3);font-weight:700}
.calc-n{flex:0 0 100px;min-width:90px}
.calc select{flex:0 0 auto;min-width:90px}
.calc-out{margin:16px 0 4px;font-size:1.05rem;color:var(--text-2)}
.calc-out b{color:var(--text);font-size:1.15rem}

/* good days */
.goodlist{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:6px}
@media(max-width:520px){.goodlist{grid-template-columns:1fr}}
.goodlist li{padding:9px 12px;background:var(--surface-2);border-radius:var(--radius-sm);font-size:.92rem;color:var(--text-2)}
.cell.good{background:color-mix(in srgb,var(--son) 12%,transparent)}
.cell.good .dnum{color:var(--son)}
.cell.good::after{content:"";position:absolute;top:7px;right:7px;width:5px;height:5px;border-radius:50%;background:var(--son)}
.hero-date b{font-weight:800}

/* holidays / 황금연휴 */
.card.pad{padding:18px 22px}
.hblocks{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(max-width:560px){.hblocks{grid-template-columns:1fr}}
.hblock{border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;background:var(--surface-2)}
.hblock.gold{background:color-mix(in srgb,var(--amber) 12%,transparent);border-color:color-mix(in srgb,var(--amber) 35%,transparent)}
.hb-len{font-weight:800;font-size:1.1rem}
.gold-tag{font-size:.7rem;font-weight:700;color:var(--amber);background:color-mix(in srgb,var(--amber) 18%,transparent);padding:2px 8px;border-radius:var(--radius-pill);vertical-align:middle}
.hb-span{color:var(--text-2);font-size:.9rem;margin-top:2px}
.hb-names{color:var(--text-3);font-size:.82rem;margin-top:3px}
.sublinks{margin:10px 0 0}.sublinks a{color:var(--brand-2);font-weight:600;font-size:.92rem}
.daynav-btn{display:inline-flex;align-items:center;gap:6px;background:var(--brand);color:var(--on-brand);border:1px solid var(--brand);border-radius:var(--radius-pill);padding:10px 18px;font-weight:700;font-size:.92rem;margin:0 8px 8px 0}
.daynav-btn:hover{background:var(--brand-2)}
.daynav-btn.ghost{background:var(--surface);color:var(--brand-2);border-color:var(--border-2)}
.daynav-btn.ghost:hover{border-color:var(--brand)}

/* 달력 헤더: 제목 + 세차 + 점프 폼 */
.cal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.cal-head h1{margin:0}
.secha{font-size:.95rem;font-weight:700;color:var(--brand-2);background:var(--brand-tint);padding:3px 11px;border-radius:var(--radius-pill);vertical-align:middle}
.jump{display:flex;gap:8px;flex:0 0 auto}
.jump input{font:inherit;color:var(--text);background:var(--surface-2);border:1px solid var(--border-2);border-radius:var(--radius-sm);padding:9px 12px;min-height:42px;width:130px}
.jump button{font:inherit;font-weight:700;color:var(--on-brand);background:var(--brand);border:0;border-radius:var(--radius-sm);padding:9px 16px;cursor:pointer}
.jump button:hover{background:var(--brand-2)}

/* 월 정보(공휴일·절기·손없는날) */
.minfo{display:flex;gap:10px;padding:9px 0;border-top:1px solid var(--border);font-size:.92rem}
.minfo:first-of-type{border-top:0}
.minfo-l{flex:0 0 82px;font-weight:700;color:var(--text-3)}
.minfo.hol .minfo-l{color:var(--sun)}.minfo.term .minfo-l{color:var(--term)}.minfo.son .minfo-l{color:var(--son)}
.minfo-v{flex:1;color:var(--text-2)}

/* 변환 폼(변환 페이지 전용) */
.conv-switch{display:inline-block;margin-top:10px;color:var(--brand-2);font-weight:600;font-size:.9rem}

/* 손 없는 날 D-day 목록 */
.sub-count{font-size:.85rem;color:var(--son);font-weight:700}
.sonlist{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
@media(max-width:560px){.sonlist{grid-template-columns:1fr}}
.sonitem{display:flex;align-items:center;gap:8px;padding:10px 12px;background:var(--surface-2);border-radius:var(--radius-sm);border:1px solid transparent}
.sonitem.up{border-color:color-mix(in srgb,var(--son) 35%,transparent)}
.si-date{font-weight:700;font-size:.9rem}
.si-lun{color:var(--text-3);font-size:.8rem}
.si-dday{margin-left:auto;font-weight:800;font-size:.85rem;color:var(--son)}

@media (prefers-reduced-motion: reduce){*{transition:none !important;scroll-behavior:auto !important}}
@media print{.site-header,.site-footer,.share-wrap,.daynav,.theme-toggle{display:none !important}
  body{background:#fff}.card,.calendar,.hero{box-shadow:none;border-color:#ccc}}