@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');

/* ═══════════════════════════════════════════════════════════
   2104 AG Color — DesignKit "Glow" 킷 변형 리디자인
   · 다크 기본(색 도구는 중립 다크 위에서 콘텐츠 색이 튀도록).
   · 발광 accent: cyan → violet 네온 글로우. 코드값은 모노(JetBrains) 표기.
   · 2103(라이트 ocean, 가로 카드)와 완전히 다른 무드/레이아웃으로 변형.
═══════════════════════════════════════ */
:root {
  --primary:#22D3EE; --primary-2:#818CF8; --accent:#C084FC;
  --grad:linear-gradient(120deg,#22D3EE 0%,#818CF8 55%,#C084FC 100%);
  --glow:rgba(129,140,248,.45);

  --bg:#0A0B14; --bg-2:#0E1020;
  --surface:#14162A; --surface-2:#1B1E38; --surface-3:#242847;
  --border:#262A4D; --border-2:#343A63; --border-soft:#1E2140;
  --text:#DfE3F5; --text-strong:#F5F7FF; --text-2:#9AA0C7; --text-3:#666C99;

  --mono:'JetBrains Mono','SF Mono',ui-monospace,'Cascadia Code',Menlo,monospace;

  --r-1:9px; --r-2:12px; --r-3:14px; --r-4:18px; --r-5:22px;
  --sh-1:0 1px 2px rgba(0,0,0,.4);
  --sh-2:0 10px 30px rgba(0,0,0,.45);
  --sh-glow:0 8px 34px var(--glow);
  --ease:cubic-bezier(.4,0,.2,1); --ease-out:cubic-bezier(.16,1,.3,1);
  --t1:160ms; --t2:320ms;
}

/* 라이트 모드 (토글) — 밝은 뉴트럴 위에서도 콘텐츠 색이 살도록 */
html[data-theme="light"] {
  --bg:#F6F7FB; --bg-2:#EEF0F8;
  --surface:#FFFFFF; --surface-2:#F4F5FB; --surface-3:#EBEDF7;
  --border:#E2E5F0; --border-2:#CED3E5; --border-soft:#EEF0F7;
  --text:#2A2E45; --text-strong:#141728; --text-2:#5C6489; --text-3:#9AA0C0;
  --glow:rgba(129,140,248,.30);
  --sh-2:0 10px 30px rgba(30,34,60,.10);
}

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

body {
  font-family:'Pretendard',-apple-system,BlinkMacSystemFont,system-ui,Roboto,sans-serif;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  color:var(--text); min-height:100vh;
  display:flex; flex-direction:column; align-items:center;
  padding:0 20px 80px; overflow-x:hidden;
  background:
    radial-gradient(760px 420px at 15% -6%, rgba(34,211,238,.10), transparent 60%),
    radial-gradient(720px 440px at 88% 2%, rgba(192,132,252,.12), transparent 62%),
    var(--bg);
  background-attachment:fixed;
}

/* ─── HEADER ─── */
.site-header {
  position:sticky; top:0; z-index:50; width:100vw; margin-bottom:8px;
  border-bottom:1px solid var(--border-soft);
  background:color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
}
.site-header__inner { max-width:1020px; margin:0 auto; height:62px; padding:0 20px;
  display:flex; align-items:center; justify-content:space-between; }
.site-header__logo { display:inline-flex; align-items:center; gap:10px; text-decoration:none; color:var(--text-strong); font-weight:800; }
.logo-badge { width:34px; height:34px; display:inline-flex; align-items:center; justify-content:center;
  border-radius:11px; background:var(--grad); color:#0A0B14; box-shadow:var(--sh-glow); }
.logo-badge svg { width:19px; height:19px; }
.logo-text { display:inline-flex; flex-direction:column; line-height:1.1; gap:1px; }
.logo-main { font-size:1.12rem; font-weight:800; letter-spacing:-.03em; color:var(--text-strong); }
.logo-main .accent { background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.logo-sub { font-size:.58rem; font-weight:800; letter-spacing:.2em; color:var(--text-3); }
.header-actions { display:flex; align-items:center; gap:13px; }
.site-header__nav { display:flex; align-items:center; gap:20px; }
.site-header__nav a { font-size:.86rem; font-weight:600; color:var(--text-2); text-decoration:none; transition:color var(--t1) var(--ease); }
.site-header__nav a:hover { color:var(--primary); }
.lang-select {
  font-family:inherit; font-size:.82rem; font-weight:600; color:var(--text-2);
  background:var(--surface-2); border:1.5px solid var(--border); border-radius:99px;
  padding:6px 28px 6px 12px; cursor:pointer; outline:none; appearance:none; -webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23666C99' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 11px center;
  transition:border-color var(--t1) var(--ease), color var(--t1) var(--ease);
}
.lang-select:hover { border-color:var(--primary-2); color:var(--text-strong); }
.theme-toggle-btn { width:34px; height:34px; flex:0 0 auto; display:inline-flex; align-items:center; justify-content:center;
  border-radius:50%; background:var(--surface-2); border:1.5px solid var(--border); color:var(--text-2); cursor:pointer; padding:0;
  transition:border-color var(--t1) var(--ease), color var(--t1) var(--ease); }
.theme-toggle-btn:hover { border-color:var(--primary-2); color:var(--primary); }
.theme-toggle-btn svg { width:17px; height:17px; }
.theme-toggle-btn .ic-dark { display:inline-flex; }
.theme-toggle-btn .ic-light { display:none; }
html[data-theme="light"] .theme-toggle-btn .ic-dark { display:none; }
html[data-theme="light"] .theme-toggle-btn .ic-light { display:inline-flex; }
@media (max-width:560px){ .site-header__nav { display:none; } }

/* ─── TOP MENU (4 도구) ─── */
.topmenu { width:100%; max-width:640px; margin:16px auto 6px; display:grid; grid-template-columns:repeat(4,1fr); gap:9px; padding:2px 0 8px; }
.topmenu-item { display:flex; flex-direction:column; align-items:center; justify-content:center; gap:7px; padding:14px 8px;
  background:var(--surface); border:1.5px solid var(--border-soft); border-radius:var(--r-3); text-decoration:none;
  box-shadow:var(--sh-1); transition:transform var(--t1) var(--ease), border-color var(--t1) var(--ease), box-shadow var(--t1) var(--ease); }
.topmenu-item:hover { transform:translateY(-2px); border-color:var(--border-2); box-shadow:var(--sh-2); }
.tm-ico { width:38px; height:38px; flex:0 0 auto; display:inline-flex; align-items:center; justify-content:center; border-radius:11px;
  background:color-mix(in srgb, var(--primary-2) 16%, transparent); color:var(--primary); }
.tm-ico svg { width:19px; height:19px; }
.tm-label { font-size:.82rem; font-weight:700; color:var(--text); letter-spacing:-.01em; }
.topmenu-item:hover .tm-label { color:var(--text-strong); }
.topmenu-item.active { border-color:transparent; background:linear-gradient(var(--surface),var(--surface)) padding-box,var(--grad) border-box;
  box-shadow:var(--sh-glow); pointer-events:none; }
.topmenu-item.active .tm-ico { background:var(--grad); color:#0A0B14; }
.topmenu-item.active .tm-label { color:var(--text-strong); }
@media (max-width:400px){ .topmenu-item { padding:12px 4px; } .tm-label { font-size:.72rem; } }

.sr-title { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* ─── LIVE 래퍼 ─── */
.live { width:100%; max-width:640px; margin:20px 0 4px; }

/* ═══════════ TOOL: 공용 카드/버튼 ═══════════ */
.tool-grid { display:grid; grid-template-columns:1fr; gap:16px; }
@media (min-width:640px){ .tool-grid { grid-template-columns:minmax(0,0.92fr) minmax(0,1.08fr); } }

.picker { -webkit-appearance:none; appearance:none; border:none; background:none; cursor:pointer; padding:0;
  width:38px; height:38px; border-radius:11px; overflow:hidden; }
.picker::-webkit-color-swatch-wrapper { padding:0; }
.picker::-webkit-color-swatch { border:2px solid var(--border-2); border-radius:11px; }
.picker::-moz-color-swatch { border:2px solid var(--border-2); border-radius:11px; }

.btn-ghost { display:inline-flex; align-items:center; gap:7px; font-family:inherit; font-size:.84rem; font-weight:700;
  color:var(--text-2); background:var(--surface-2); border:1.5px solid var(--border); border-radius:99px; padding:8px 15px;
  cursor:pointer; transition:border-color var(--t1) var(--ease), color var(--t1) var(--ease); }
.btn-ghost:hover { border-color:var(--primary-2); color:var(--text-strong); }
.btn-ghost svg { width:15px; height:15px; }

/* ── CONVERT: preview ── */
.preview-panel { display:flex; flex-direction:column; gap:14px; }
.swatch { position:relative; width:100%; aspect-ratio:1/0.82; border-radius:var(--r-5); display:flex; align-items:center;
  justify-content:center; cursor:pointer; box-shadow:var(--sh-2); border:1px solid rgba(255,255,255,.06);
  transition:transform var(--t2) var(--ease-out); }
.swatch:hover { transform:translateY(-2px); }
.swatch-sample { font-size:1.5rem; font-weight:800; letter-spacing:-.02em; opacity:.92; }
.swatch-sample b { font-family:var(--mono); }
.swatch-hex { position:absolute; bottom:12px; right:14px; font-family:var(--mono); font-size:.82rem; font-weight:700; opacity:.85; }
.preview-actions { display:flex; align-items:center; gap:10px; }
.recent { display:flex; flex-wrap:wrap; gap:7px; min-height:22px; }
.recent-dot { width:22px; height:22px; border-radius:7px; border:1.5px solid var(--border-2); cursor:pointer; padding:0; transition:transform var(--t1) var(--ease); }
.recent-dot:hover { transform:scale(1.15); }

/* ── CONVERT: fields ── */
.fields-panel { display:flex; flex-direction:column; gap:9px; }
.fld-row { display:flex; align-items:center; gap:10px; background:var(--surface); border:1.5px solid var(--border-soft);
  border-radius:var(--r-3); padding:10px 12px; box-shadow:var(--sh-1); }
.fld-label { flex:0 0 46px; font-family:var(--mono); font-size:.74rem; font-weight:700; color:var(--text-3); letter-spacing:.04em; }
.fld-parts { flex:1; display:flex; gap:7px; }
.fld-part { position:relative; flex:1; display:flex; align-items:center; }
.fld-unit { position:absolute; right:9px; font-size:.72rem; color:var(--text-3); pointer-events:none; }
.fld-in { width:100%; min-width:0; font-family:var(--mono); font-size:.92rem; font-weight:600; text-align:center;
  color:var(--text-strong); background:var(--surface-2); border:1.5px solid var(--border); border-radius:var(--r-1);
  padding:9px 6px; outline:none; -moz-appearance:textfield; transition:border-color var(--t1) var(--ease), box-shadow var(--t1) var(--ease); }
.fld-in::-webkit-outer-spin-button, .fld-in::-webkit-inner-spin-button { -webkit-appearance:none; margin:0; }
.fld-in:focus { border-color:var(--primary-2); box-shadow:0 0 0 3px color-mix(in srgb,var(--primary-2) 24%,transparent); }
.fld-hex { flex:1; text-align:left; letter-spacing:.05em; text-transform:uppercase; }
.fld-copy { flex:0 0 auto; width:34px; height:34px; display:inline-flex; align-items:center; justify-content:center;
  border-radius:9px; background:var(--surface-2); border:1.5px solid var(--border); color:var(--text-2); cursor:pointer;
  transition:border-color var(--t1) var(--ease), color var(--t1) var(--ease); }
.fld-copy:hover { border-color:var(--primary-2); color:var(--primary); }
.fld-copy svg { width:15px; height:15px; }

/* ── PALETTE ── */
.pal-head { display:flex; flex-direction:column; gap:10px; margin-bottom:18px; }
.pal-baselabel { font-size:.78rem; font-weight:700; color:var(--text-2); }
.pal-basein { display:flex; align-items:center; gap:10px; }
.pal-basein .fld-hex { max-width:150px; padding:10px 12px; }
.pal-group { margin-bottom:18px; }
.pal-gtitle { font-size:.76rem; font-weight:800; color:var(--text-3); text-transform:uppercase; letter-spacing:.08em; margin-bottom:8px; }
.pal-row { display:grid; grid-auto-flow:column; grid-auto-columns:1fr; gap:8px; }
@media (max-width:560px){ .pal-row { grid-auto-flow:row; grid-auto-columns:auto; grid-template-columns:repeat(auto-fill,minmax(80px,1fr)); } }
.pal-sw { height:76px; border-radius:var(--r-3); border:1px solid rgba(255,255,255,.06); display:flex; align-items:flex-end; justify-content:flex-start;
  padding:9px; cursor:pointer; font-family:var(--mono); font-size:.72rem; font-weight:700; box-shadow:var(--sh-1);
  transition:transform var(--t1) var(--ease-out); }
.pal-sw:hover { transform:translateY(-3px) scale(1.02); }

/* ── GRADIENT ── */
.grad-preview { width:100%; height:190px; border-radius:var(--r-5); box-shadow:var(--sh-2); border:1px solid rgba(255,255,255,.06); margin-bottom:16px; }
.grad-controls { display:flex; flex-direction:column; gap:16px; margin-bottom:16px; }
.grad-stops { display:flex; gap:12px; }
.grad-stop { flex:1; display:flex; align-items:center; gap:10px; background:var(--surface); border:1.5px solid var(--border-soft);
  border-radius:var(--r-3); padding:10px 12px; cursor:pointer; }
.grad-stop span { font-family:var(--mono); font-size:.8rem; font-weight:700; color:var(--text); }
.grad-angle { display:flex; flex-direction:column; gap:8px; }
.grad-angle label { font-size:.82rem; font-weight:700; color:var(--text-2); }
.grad-angle span { font-family:var(--mono); color:var(--primary); }
input[type=range] { -webkit-appearance:none; appearance:none; width:100%; height:6px; border-radius:99px;
  background:var(--surface-3); outline:none; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance:none; width:20px; height:20px; border-radius:50%;
  background:var(--grad); box-shadow:var(--sh-glow); cursor:pointer; border:2px solid var(--bg); }
input[type=range]::-moz-range-thumb { width:18px; height:18px; border-radius:50%; background:var(--primary-2); cursor:pointer; border:2px solid var(--bg); }
.grad-type { display:flex; align-items:center; gap:8px; }
.grad-type > span { font-size:.82rem; font-weight:700; color:var(--text-2); margin-right:4px; }
.seg { font-family:inherit; font-size:.82rem; font-weight:700; color:var(--text-2); background:var(--surface-2);
  border:1.5px solid var(--border); border-radius:99px; padding:7px 16px; cursor:pointer; transition:all var(--t1) var(--ease); }
.seg.active { color:#0A0B14; background:var(--grad); border-color:transparent; }
.grad-code { display:flex; align-items:center; gap:10px; background:var(--surface); border:1.5px solid var(--border-soft);
  border-radius:var(--r-3); padding:12px 14px; }
.grad-code code { flex:1; font-family:var(--mono); font-size:.82rem; color:var(--text-strong); word-break:break-all; }

/* ── NAMES ── */
.names-search { display:flex; align-items:center; gap:9px; background:var(--surface); border:1.5px solid var(--border);
  border-radius:99px; padding:11px 18px; margin-bottom:16px; }
.names-search svg { width:17px; height:17px; color:var(--text-3); flex:0 0 auto; }
.names-search input { flex:1; font-family:inherit; font-size:.92rem; color:var(--text-strong); background:none; border:none; outline:none; }
.names-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(120px,1fr)); gap:9px; }
.name-card { display:flex; flex-direction:column; align-items:flex-start; justify-content:flex-end; gap:2px; height:74px;
  border-radius:var(--r-2); border:1px solid rgba(255,255,255,.06); padding:9px 10px; cursor:pointer; box-shadow:var(--sh-1);
  transition:transform var(--t1) var(--ease-out); overflow:hidden; }
.name-card:hover { transform:translateY(-3px); }
.name-n { font-size:.76rem; font-weight:700; max-width:100%; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.name-h { font-family:var(--mono); font-size:.68rem; font-weight:600; opacity:.8; }

/* ─── TOAST ─── */
.toast { position:fixed; left:50%; bottom:28px; transform:translateX(-50%) translateY(16px); z-index:200;
  font-family:var(--mono); font-size:.82rem; font-weight:600; color:var(--text-strong);
  background:var(--surface-3); border:1.5px solid var(--border-2); border-radius:99px; padding:10px 20px;
  box-shadow:var(--sh-2); opacity:0; pointer-events:none; transition:opacity var(--t1) var(--ease), transform var(--t1) var(--ease-out); }
.toast.show { opacity:1; transform:translateX(-50%) translateY(0); }

/* ─── FAQ ─── */
.faq { width:100%; max-width:640px; margin:26px 0 4px; }
.faq-title { font-size:1.06rem; font-weight:800; color:var(--text-strong); margin-bottom:14px; letter-spacing:-.02em; }
.faq-item { background:var(--surface); border:1.5px solid var(--border-soft); border-radius:var(--r-4); padding:16px 18px; margin-bottom:10px; box-shadow:var(--sh-1); }
.faq-q { font-size:.92rem; font-weight:700; color:var(--text-strong); margin-bottom:6px; }
.faq-a { font-size:.86rem; color:var(--text-2); line-height:1.65; word-break:keep-all; }

/* ─── TRUST BAR ─── */
.trust-bar { width:100%; max-width:640px; margin-top:36px; padding-top:26px; border-top:1px solid var(--border-soft);
  display:flex; flex-wrap:wrap; justify-content:center; gap:14px 30px; }
.trust-item { display:inline-flex; align-items:center; gap:8px; font-size:.83rem; font-weight:600; color:var(--text-3); }
.trust-item svg { width:16px; height:16px; color:var(--primary); }

/* ─── AD (룰 4-1: radius/overflow 금지) ─── */
.ad-grid { display:flex; flex-direction:column; align-items:center; gap:12px; margin-top:34px; }
.ad-cell { min-height:50px; max-width:100%; }

/* ─── FOOTER ─── */
.site-footer { width:100%; max-width:640px; margin-top:34px; padding:24px 16px; border-top:1px solid var(--border-soft); text-align:center; }
.site-footer a { color:var(--text-3); font-size:.82rem; text-decoration:none; transition:color var(--t1) var(--ease); }
.site-footer a:hover { color:var(--primary); }
.footer-divider { color:var(--border-2); margin:0 10px; }
.footer-copy { display:block; margin-top:10px; font-size:.74rem; color:var(--text-3); }

/* ─── 보조 페이지 (about/contact) ─── */
.doc { width:100%; max-width:640px; margin:24px 0; background:var(--surface); border:1.5px solid var(--border-soft);
  border-radius:var(--r-4); padding:28px 26px; box-shadow:var(--sh-1); }
.doc h1 { font-size:1.5rem; font-weight:800; color:var(--text-strong); letter-spacing:-.03em; margin-bottom:16px; }
.doc h2 { font-size:1.05rem; font-weight:700; color:var(--text-strong); margin:22px 0 8px; }
.doc p { font-size:.9rem; color:var(--text-2); line-height:1.75; margin-bottom:10px; word-break:keep-all; }
.doc a { color:var(--primary); }

/* ─── ANIMATIONS ─── */
.animate-fade-in { animation:fadeIn .6s var(--ease-out) both; }
@keyframes fadeIn { from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:translateY(0);} }

@media (max-width:480px){
  body { padding:0 14px 64px; }
  .grad-stops { flex-direction:column; }
}