@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700;800&display=swap');

/* ═══════════════════════════════════════
   KIT: Console — Developer Terminal
   좌측정렬 · 모노스페이스 전체 · 터미널 카드/입력 · 신호등 점 · `// 주석` 라벨
   각진 모서리(5~6px) · JetBrains Mono · 다크(neon)
   ※ 색은 _tokens.css(data-theme)가 관장. 이 파일은 레이아웃·타이포·형태만.
═══════════════════════════════════════ */
:root {
  /* shape & motion (킷 고유) */
  --bd: 1px;
  --r-1: 5px; --r-2: 5px; --r-3: 6px; --r-4: 6px; --r-5: 6px;
  --sh-1: 0 1px 2px rgba(0,0,0,.30);
  --sh-2: 0 2px 8px rgba(0,0,0,.35);
  --sh-3: 0 8px 24px rgba(0,0,0,.40);
  --glow: 0 0 0 1px var(--primary-alpha), 0 6px 20px var(--primary-glow);
  --ease: cubic-bezier(.4,0,.2,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
  --t1: 130ms; --t2: 240ms;
  /* legacy compat (client_info / user_agent inline styles) */
  --bg-card: var(--surface); --glass-border: var(--border);
  --glass-shadow: 0 8px 24px rgba(0,0,0,.40);
  --accent-primary: var(--primary); --accent-gradient: var(--grad);
  --text-primary: var(--text); --text-secondary: var(--text-2); --text-muted: var(--text-3);
  --radius-md: 5px; --radius-lg: 6px;
}

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

body {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  -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 72px;
  overflow-x: hidden;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 31px, color-mix(in srgb, var(--text-strong) 3%, transparent) 32px),
    repeating-linear-gradient(90deg, transparent, transparent 31px, color-mix(in srgb, var(--text-strong) 3%, transparent) 32px),
    radial-gradient(900px 460px at 18% -10%, color-mix(in srgb, var(--primary) 9%, transparent), transparent 60%),
    var(--bg);
  background-attachment: fixed;
}

.stars, .star { display: none !important; }

/* ─── GLOBAL HEADER (terminal title bar) ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100vw;
  margin-bottom: 10px;
  border-bottom: var(--bd) solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.site-header__inner {
  max-width: 1040px;
  margin: 0 auto;
  height: 58px;
  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;
}
/* 콘솔 창 신호등 점 (●●●) */
.site-header__logo .logo-badge {
  position: relative;
  width: 34px; height: 30px;
  display: inline-flex; align-items: flex-end; justify-content: center;
  padding-bottom: 5px;
  border-radius: var(--r-2);
  border: var(--bd) solid var(--border-2);
  background: var(--surface-2);
  color: var(--primary);
  overflow: hidden;
}
.site-header__logo .logo-badge::before {
  content: '';
  position: absolute;
  top: 6px; left: 7px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--err);
  box-shadow: 9px 0 0 var(--accent), 18px 0 0 var(--primary);
}
.site-header__logo .logo-badge svg { width: 15px; height: 15px; }
.site-header__logo .accent { color: var(--primary); }
.site-header__logo .logo-text { display: inline-flex; flex-direction: column; line-height: 1.12; gap: 1px; }
.site-header__logo .logo-main { font-size: 1.04rem; font-weight: 800; letter-spacing: -0.02em; color: var(--text-strong); }
.site-header__logo .logo-sub { font-size: 0.58rem; font-weight: 700; letter-spacing: 0.18em; color: var(--text-3); }
.site-header__nav { display: flex; align-items: center; gap: 6px; }
.site-header__nav a {
  font-size: 0.8rem; font-weight: 500; color: var(--text-2);
  text-decoration: none;
  padding: 7px 11px;
  border-radius: var(--r-1);
  border: var(--bd) solid transparent;
  transition: all var(--t1) var(--ease);
}
.site-header__nav a::before { content: ''; opacity: .6; }
.site-header__nav a:hover { color: var(--primary); border-color: var(--border-2); background: var(--surface-2); }
@media (max-width: 560px) { .site-header__nav { display: none; } }

/* ─── HERO (좌측정렬) ─── */
.hero {
  width: 100%;
  max-width: 1040px;
  margin: 40px auto 8px;
  text-align: left;
}
.hero-icon {
  font-size: 1.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  margin-bottom: 22px;
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  color: var(--primary);
  border-radius: var(--r-3);
  box-shadow: var(--sh-2), inset 0 0 0 1px color-mix(in srgb, var(--primary) 18%, transparent);
}
.hero-icon svg { width: 28px; height: 28px; }
.hero h1 {
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin-bottom: 20px;
}
.hero h1 .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero h1 .grad::before { content: '> '; -webkit-text-fill-color: var(--primary); }
.hero p {
  font-size: 0.96rem;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 580px;
  margin: 0;
  word-break: keep-all;
}
.hero .hero-tail { margin-top: 14px; font-size: 0.86rem; color: var(--text-3); }

/* ─── SECTION LABEL (`// 주석` 프롬프트) ─── */
.section-label {
  width: 100%; max-width: 1040px;
  margin: 46px auto 20px;
}
.section-label span {
  display: inline-block;
  font-size: 0.82rem; font-weight: 700; color: var(--text-3);
  letter-spacing: 0.01em;
}
.section-label span::before {
  content: '// ';
  color: var(--primary);
  font-weight: 700;
}

/* ─── FEATURE GRID ─── */
.feature-grid {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
@media (min-width: 720px) { .feature-grid { grid-template-columns: repeat(3, 1fr); } }

.feature-card {
  position: relative;
  background: var(--surface);
  border: var(--bd) solid var(--border);
  border-radius: var(--r-5);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  box-shadow: var(--sh-1);
  transition:
    transform var(--t2) var(--ease-out),
    box-shadow var(--t2) var(--ease-out),
    border-color var(--t1) var(--ease);
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: var(--glow);
}
.feature-icon {
  width: 46px; height: 46px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-2);
  margin-bottom: 16px;
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  color: var(--primary);
}
.feature-icon svg { width: 23px; height: 23px; }
/* 아이콘 배지 색상 변형 — 모노 대비를 위해 보더+텍스트만 색조 */
.ic-blue    { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 45%, var(--border-2)); }
.ic-emerald { color: var(--accent);  border-color: color-mix(in srgb, var(--accent) 45%, var(--border-2)); }
.ic-amber   { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 45%, var(--border-2)); }
.ic-violet  { color: var(--accent);  border-color: color-mix(in srgb, var(--accent) 45%, var(--border-2)); }
.ic-rose    { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 45%, var(--border-2)); }
.ic-indigo  { color: var(--accent);  border-color: color-mix(in srgb, var(--accent) 45%, var(--border-2)); }
.ic-sky     { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 45%, var(--border-2)); }
.ic-teal    { color: var(--accent);  border-color: color-mix(in srgb, var(--accent) 45%, var(--border-2)); }

.feature-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
  transition: color var(--t1) var(--ease);
}
.feature-title::before { content: '$ '; color: var(--text-3); font-weight: 500; }
.feature-card:hover .feature-title { color: var(--primary); }
.feature-desc {
  font-size: 0.8rem;
  color: var(--text-3);
  line-height: 1.6;
  flex: 1;
  word-break: keep-all;
}
.feature-arrow {
  margin-top: 16px;
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.78rem; font-weight: 700; color: var(--primary);
}
.feature-arrow svg { width: 15px; height: 15px; transition: transform var(--t1) var(--ease); }
.feature-card:hover .feature-arrow svg { transform: translateX(3px); }

/* 카드 안 보조 액션(레거시 호환) */
.card-actions { display: flex; flex-direction: column; gap: 7px; margin-top: 16px; }
.btn-link {
  display: block;
  padding: 10px 12px;
  border-radius: var(--r-1);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  text-align: center;
  background: var(--surface-2);
  border: var(--bd) solid var(--border);
  color: var(--text-2);
  transition: all var(--t1) var(--ease);
}
.btn-link:hover { border-color: var(--primary); color: var(--primary); }
.btn-link.primary {
  background: var(--grad);
  color: #000;
  border-color: transparent;
  box-shadow: 0 4px 14px var(--primary-glow);
}
.btn-link.primary:hover { filter: brightness(1.06); transform: translateY(-1px); }

/* ─── TRUST BAR ─── */
.trust-bar {
  width: 100%; max-width: 1040px;
  margin: 44px auto 0; padding-top: 26px;
  border-top: var(--bd) solid var(--border);
  display: flex; flex-wrap: wrap;
  gap: 14px 34px;
}
.trust-item {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.82rem; font-weight: 500; color: var(--text-3);
}
.trust-item svg { width: 16px; height: 16px; color: var(--primary); }

/* ─── TITLE BAR (도구 내부 페이지) ─── */
.title-bar {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0 4px;
}
.title-bar__home {
  display: inline-flex; align-items: center; gap: 5px;
  text-decoration: none; color: var(--text-2);
  font-size: 0.82rem; font-weight: 500;
  padding: 6px 11px;
  border: var(--bd) solid var(--border);
  border-radius: var(--r-1);
  background: var(--surface-2);
  transition: all var(--t1) var(--ease);
}
.title-bar__home:hover { color: var(--primary); border-color: var(--primary); }
.title-bar__cat {
  font-size: 0.64rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--primary);
  background: var(--surface-2);
  border: var(--bd) solid var(--primary-alpha);
  padding: 5px 11px;
  border-radius: var(--r-1);
}
.title-bar__cat::before { content: '~/'; color: var(--text-3); }

/* ─── PAGE CONTAINER ─── */
.page-container {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}
.page-header { text-align: left; margin: 16px 0 22px; }
.page-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: -0.02em;
  margin-bottom: 7px;
}
.page-sub { font-size: 0.86rem; color: var(--text-2); }
.page-sub::before { content: '# '; color: var(--text-3); }

/* ─── CONVERTER ─── */
.conv-card {
  background: var(--surface);
  border: var(--bd) solid var(--border);
  border-radius: var(--r-5);
  padding: 20px;
  box-shadow: var(--sh-1);
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 18px;
}
.conv-row { display: grid; grid-template-columns: 1fr 150px; gap: 10px; }
.conv-input {
  width: 100%;
  padding: 15px 16px;
  font-family: inherit;
  font-size: 1.2rem;
  font-weight: 700;
  text-align: right;
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  border-radius: var(--r-2);
  color: var(--text-strong);
  outline: none;
  font-variant-numeric: tabular-nums;
  transition: all var(--t1) var(--ease);
  -moz-appearance: textfield;
}
.conv-input::-webkit-outer-spin-button,
.conv-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.conv-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-alpha); }
.conv-input--out {
  background: color-mix(in srgb, var(--primary) 12%, var(--surface-2));
  border-color: var(--primary-alpha);
  color: var(--primary);
}
.conv-sel-wrap { position: relative; }
.conv-sel-wrap::after {
  content: '▾'; position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text-3); font-size: 0.8rem; pointer-events: none;
}
.conv-select {
  width: 100%; height: 100%;
  padding: 0 30px 0 14px;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-strong);
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  border-radius: var(--r-2);
  outline: none;
  cursor: pointer;
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  transition: all var(--t1) var(--ease);
}
.conv-select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-alpha); }

.conv-swap {
  align-self: center;
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-2);
  background: var(--surface-2);
  color: var(--primary);
  border: var(--bd) solid var(--primary-alpha);
  box-shadow: 0 0 12px var(--primary-glow);
  cursor: pointer;
  margin: -3px 0;
  transition: transform var(--t1) var(--ease), border-color var(--t1) var(--ease);
}
.conv-swap:hover { transform: rotate(180deg); border-color: var(--primary); }
.conv-swap svg { width: 18px; height: 18px; }

.conv-eq {
  text-align: left;
  font-size: 0.96rem;
  color: var(--text-2);
  padding: 15px 16px;
  background: var(--surface-2);
  border: var(--bd) solid var(--border);
  border-radius: var(--r-3);
  margin-bottom: 18px;
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}
.conv-eq::before { content: '>> '; color: var(--primary); font-weight: 700; }
.conv-eq b { color: var(--text-strong); font-weight: 800; }
.conv-eq b.hl { color: var(--primary); }

.conv-table-wrap {
  background: var(--surface);
  border: var(--bd) solid var(--border);
  border-radius: var(--r-5);
  padding: 8px 20px 14px;
  box-shadow: var(--sh-1);
  margin-bottom: 16px;
}
.conv-table-title {
  font-size: 0.74rem; font-weight: 700; color: var(--text-3);
  text-transform: uppercase; letter-spacing: 0.08em;
  padding: 14px 2px 6px;
}
.conv-table { width: 100%; border-collapse: collapse; }
.conv-table td { padding: 12px 2px; border-bottom: var(--bd) solid var(--border); font-size: 0.9rem; }
.conv-table tr:last-child td { border-bottom: none; }
.conv-table .cu { color: var(--text-2); }
.conv-table .cu .cs { color: var(--text-3); font-size: 0.78rem; margin-left: 4px; }
.conv-table .cv { text-align: right; color: var(--text-strong); font-weight: 700; font-variant-numeric: tabular-nums; }
.conv-table tr.active td { background: color-mix(in srgb, var(--primary) 10%, transparent); }
.conv-table tr.active .cv { color: var(--primary); }

/* ─── CALC FORM ─── */
.calc-form {
  background: var(--surface);
  border: var(--bd) solid var(--border);
  border-radius: var(--r-5);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--sh-1);
}
.calc-field { margin-bottom: 18px; }
.calc-field:last-child { margin-bottom: 0; }
.calc-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 9px;
  letter-spacing: -0.005em;
}
.calc-label::before { content: '$ '; color: var(--text-3); font-weight: 500; }
.calc-label .hint { color: var(--text-3); font-weight: 400; font-size: 0.74rem; }

.calc-input-wrap { position: relative; display: flex; align-items: center; }
.calc-input {
  width: 100%;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 1.02rem;
  font-weight: 600;
  text-align: right;
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  border-radius: var(--r-2);
  color: var(--text-strong);
  outline: none;
  transition: all var(--t1) var(--ease);
}
.calc-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-alpha); }
.calc-input::placeholder { color: var(--text-3); font-weight: 400; }
.calc-input.has-suffix { padding-right: 50px; }
.calc-suffix {
  position: absolute; right: 16px;
  font-size: 0.88rem; font-weight: 700; color: var(--text-3);
  pointer-events: none;
}

/* segmented radio */
.calc-seg { display: flex; gap: 7px; flex-wrap: wrap; }
.calc-seg input[type="radio"] { display: none; }
.calc-seg label {
  flex: 1; min-width: 66px;
  padding: 11px 12px;
  text-align: center;
  border-radius: var(--r-1);
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  color: var(--text-2);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--t1) var(--ease);
}
.calc-seg label:hover { border-color: var(--primary); color: var(--primary); }
.calc-seg input[type="radio"]:checked + label {
  background: color-mix(in srgb, var(--primary) 14%, var(--surface-2));
  border-color: var(--primary);
  color: var(--primary);
}

.calc-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.calc-duo .calc-field { margin-bottom: 0; }

/* stepper */
.calc-stepper { display: flex; align-items: center; gap: 8px; }
.stp-btn {
  flex: 0 0 auto; width: 44px; height: 44px;
  border-radius: var(--r-1);
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  color: var(--text-2);
  font-size: 1.3rem; font-weight: 700; line-height: 1;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all var(--t1) var(--ease);
}
.stp-btn:hover { border-color: var(--primary); color: var(--primary); }
.stp-btn:active { transform: scale(0.94); }
.stp-val {
  flex: 1; min-width: 0;
  padding: 13px 12px;
  font-family: inherit; font-size: 1.02rem; font-weight: 700;
  text-align: center;
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  border-radius: var(--r-2);
  color: var(--text-strong);
  outline: none;
}
.stp-unit { flex: 0 0 auto; font-size: 0.88rem; font-weight: 600; color: var(--text-3); padding: 0 2px; }

/* ─── RESULT (code block) ─── */
.calc-result {
  position: relative;
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  border-radius: var(--r-5);
  padding: 0 0 24px;
  margin-bottom: 16px;
  box-shadow: var(--sh-2);
  overflow: hidden;
}
/* 코드블록 상단 라벨 바 */
.result-label {
  font-size: 0.7rem; font-weight: 700; color: var(--text-3);
  text-transform: uppercase; letter-spacing: 0.1em;
  text-align: left;
  padding: 11px 22px;
  margin-bottom: 18px;
  background: var(--surface);
  border-bottom: var(--bd) solid var(--border);
}
.result-label::before { content: '● '; color: var(--ok); letter-spacing: 0; }
.result-main {
  font-size: clamp(1.8rem, 7vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-align: left;
  padding: 0 22px;
  color: var(--primary);
  line-height: 1.15;
  word-break: keep-all;
}
.result-main::before { content: '= '; color: var(--text-3); font-weight: 500; }
.result-main .unit {
  color: var(--text-2);
  font-size: 1rem;
  font-weight: 700;
  margin-left: 5px;
}
.result-sub { text-align: left; font-size: 0.82rem; color: var(--text-3); margin-top: 8px; padding: 0 22px; }

.result-rows { margin: 22px 22px 0; border-top: var(--bd) solid var(--border); }
.result-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 2px;
  border-bottom: var(--bd) solid var(--border);
  font-size: 0.88rem;
}
.result-row .rk { color: var(--text-2); }
.result-row .rk::before { content: '  '; white-space: pre; }
.result-row .rv { color: var(--text-strong); font-weight: 700; font-variant-numeric: tabular-nums; }
.result-row.minus .rv { color: var(--err); }
.result-row.total { padding-top: 15px; border-bottom: none; }
.result-row.total .rk { font-weight: 800; color: var(--text-strong); }
.result-row.total .rv { font-weight: 800; font-size: 1.04rem; color: var(--primary); }

.calc-note {
  font-size: 0.78rem;
  color: var(--text-3);
  line-height: 1.7;
  background: var(--surface);
  border: var(--bd) solid var(--border);
  border-left: 3px solid var(--primary-alpha);
  border-radius: var(--r-3);
  padding: 14px 16px;
  margin-bottom: 16px;
  word-break: keep-all;
}
.calc-note::before { content: '// '; color: var(--primary); font-weight: 700; }
.calc-note b { color: var(--text-2); font-weight: 700; }

/* ─── SUBNAV (탭) ─── */
.subnav {
  display: flex;
  background: var(--surface-2);
  border: var(--bd) solid var(--border);
  border-radius: var(--r-2);
  padding: 5px;
  gap: 5px;
  margin-bottom: 18px;
}
.subnav-btn {
  flex: 1;
  padding: 11px 6px;
  border-radius: var(--r-1);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 700;
  text-align: center;
  background: transparent;
  border: none;
  color: var(--text-3);
  cursor: pointer;
  transition: all var(--t1) var(--ease);
}
.subnav-btn:hover { color: var(--text-2); }
.subnav-btn.active {
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--sh-1);
  pointer-events: none;
}

/* ─── START BUTTON ─── */
.start-button {
  width: 100%;
  padding: 15px;
  font-family: inherit;
  font-size: 0.96rem;
  font-weight: 800;
  letter-spacing: -0.005em;
  color: #000;
  background: var(--grad);
  border: none;
  border-radius: var(--r-2);
  cursor: pointer;
  box-shadow: 0 6px 20px var(--primary-glow);
  margin-top: 6px;
  transition: all var(--t1) var(--ease);
}
.start-button::before { content: '$ '; opacity: .7; }
.start-button:hover { transform: translateY(-2px); box-shadow: 0 10px 28px var(--primary-glow); }

/* ─── AD ─── */
.ad-grid { display: grid; grid-template-columns: repeat(2, 320px); gap: 12px; justify-content: center; margin-top: 36px; }
.ad-cell { width: 320px; min-height: 50px; }
.ad-mobile-container-320-50-center  { display: block; width: 320px; min-height: 50px; }
.ad-mobile-container-320-100-center { display: block; width: 320px; min-height: 100px; }
.ag-ad-area { width: 320px; }
@media (max-width: 720px) { .ad-grid { grid-template-columns: 320px; } }

/* ─── FOOTER ─── */
.site-footer {
  width: 100%;
  max-width: 1040px;
  margin: 36px auto 0;
  padding: 22px 4px;
  border-top: var(--bd) solid var(--border);
  text-align: left;
}
.site-footer a { color: var(--text-3); font-size: 0.8rem; 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; }

/* ─── ANIMATIONS ─── */
.animate-fade-in { animation: fadeIn 0.5s var(--ease-out) both; }
.animate-slide-up { animation: slideUp 0.5s var(--ease-out) both; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

/* ─── RESPONSIVE ─── */
@media (max-width: 480px) {
  body { padding: 0 14px 64px; }
  .hero { margin-top: 30px; }
  .calc-form { padding: 20px 16px; }
  .feature-grid { gap: 12px; }
  .feature-card { padding: 20px 16px; }
  .conv-row { grid-template-columns: 1fr 124px; }
  .conv-input { font-size: 1.06rem; padding: 14px; }
  .conv-select { font-size: 0.82rem; }
}

/* ═══════════════════════════════════════════════════════════
   AG UUID — 프로젝트 전용 컴포넌트 (Console 킷 변형)
   · 도구 컨테이너를 720px 로 확장, 중앙 정렬 히어로, 터미널 창 출력 패널
═══════════════════════════════════════════════════════════ */

/* 헤더 테마 토글 버튼 */
.theme-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  margin-left: 4px;
  border-radius: var(--r-1);
  border: var(--bd) solid var(--border-2);
  background: var(--surface-2);
  color: var(--text-2);
  cursor: pointer;
  transition: all var(--t1) var(--ease);
}
.theme-btn:hover { color: var(--primary); border-color: var(--primary); }
.theme-btn svg { width: 16px; height: 16px; }

/* 언어 선택 드롭다운 */
.lang-select {
  font-family: inherit;
  font-size: 0.78rem; font-weight: 600;
  color: var(--text-2);
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  border-radius: var(--r-1);
  padding: 7px 9px;
  margin-left: 4px;
  cursor: pointer;
  outline: none;
  transition: all var(--t1) var(--ease);
}
.lang-select:hover { color: var(--primary); border-color: var(--primary); }
.lang-select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-alpha); }
@media (max-width: 560px) {
  .site-header__nav { display: flex; gap: 4px; }
  .site-header__nav a { display: none; }        /* 모바일에선 소개/문의 링크 숨김, 언어·테마는 유지 */
  .lang-select { font-size: 0.72rem; padding: 6px 7px; }
}

/* ─── RTL (아랍어) ─── */
[dir="rtl"] .hero, [dir="rtl"] .page-header, [dir="rtl"] .calc-note { text-align: right; }
[dir="rtl"] .opt-label::before,
[dir="rtl"] .page-sub::before { content: none; }
[dir="rtl"] .term-count { margin-left: 0; margin-right: auto; }
[dir="rtl"] .out-idx { text-align: left; }
[dir="rtl"] .title-bar__cat::before { content: none; }

/* 도구용 넓은 컨테이너 */
.tool-container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

/* 히어로 (중앙 정렬 변형) */
.tool-hero {
  width: 100%; max-width: 720px;
  margin: 40px auto 4px;
  text-align: center;
}
.tool-hero .hero-icon { margin: 0 auto 20px; }
.tool-hero h1 {
  font-size: clamp(1.9rem, 5.5vw, 2.9rem);
  font-weight: 800; color: var(--text-strong);
  letter-spacing: -0.03em; line-height: 1.12; margin-bottom: 16px;
}
.tool-hero h1 .grad {
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tool-hero h1 .grad::before { content: '> '; -webkit-text-fill-color: var(--primary); }
.tool-hero p {
  font-size: 0.96rem; color: var(--text-2); line-height: 1.7;
  max-width: 560px; margin: 0 auto; word-break: keep-all;
}

/* ─── 버전 탭 ─── */
.ver-tabs {
  display: flex; flex-wrap: wrap;
  background: var(--surface-2);
  border: var(--bd) solid var(--border);
  border-radius: var(--r-2);
  padding: 5px; gap: 4px;
  margin: 30px 0 16px;
}
.ver-tab {
  flex: 1 1 auto; min-width: 64px;
  padding: 10px 8px;
  border-radius: var(--r-1);
  font-family: inherit; font-size: 0.82rem; font-weight: 700;
  text-align: center; color: var(--text-3);
  background: transparent; border: none; cursor: pointer;
  transition: all var(--t1) var(--ease);
}
.ver-tab:hover { color: var(--text-2); }
.ver-tab.active {
  background: var(--surface); color: var(--primary);
  box-shadow: var(--sh-1), inset 0 0 0 1px var(--primary-alpha);
}
.ver-tab small { display: block; font-size: 0.62rem; font-weight: 500; color: var(--text-3); margin-top: 2px; letter-spacing: 0; }
.ver-tab.active small { color: color-mix(in srgb, var(--primary) 70%, var(--text-3)); }

/* ─── 옵션 바 (형식 토글 칩 + 개수) ─── */
.opt-card {
  background: var(--surface);
  border: var(--bd) solid var(--border);
  border-radius: var(--r-5);
  padding: 18px 20px;
  box-shadow: var(--sh-1);
  margin-bottom: 14px;
  display: flex; flex-direction: column; gap: 16px;
}
.opt-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.opt-label {
  font-size: 0.78rem; font-weight: 700; color: var(--text-2);
  letter-spacing: 0.02em; white-space: nowrap;
}
.opt-label::before { content: '// '; color: var(--primary); }

.chips { display: flex; gap: 7px; flex-wrap: wrap; }
.chip {
  padding: 8px 13px;
  border-radius: var(--r-1);
  font-family: inherit; font-size: 0.78rem; font-weight: 700;
  color: var(--text-3);
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  cursor: pointer; user-select: none;
  display: inline-flex; align-items: center; gap: 6px;
  transition: all var(--t1) var(--ease);
}
.chip:hover { color: var(--text-2); border-color: var(--primary-alpha); }
.chip .dot {
  width: 8px; height: 8px; border-radius: 2px;
  background: var(--border-2); transition: all var(--t1) var(--ease);
}
.chip.on {
  color: var(--primary);
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, var(--surface-2));
}
.chip.on .dot { background: var(--primary); box-shadow: 0 0 6px var(--primary-glow); }

/* 개수 스테퍼 */
.count-stepper { display: flex; align-items: center; gap: 7px; }
.count-stepper .stp-btn {
  width: 38px; height: 38px;
  border-radius: var(--r-1);
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  color: var(--text-2);
  font-size: 1.2rem; font-weight: 700; line-height: 1;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all var(--t1) var(--ease);
}
.count-stepper .stp-btn:hover { border-color: var(--primary); color: var(--primary); }
.count-stepper .stp-btn:active { transform: scale(0.94); }
.count-stepper input {
  width: 80px; padding: 10px 8px;
  font-family: inherit; font-size: 0.98rem; font-weight: 800;
  text-align: center;
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  border-radius: var(--r-2);
  color: var(--text-strong);
  outline: none;
  -moz-appearance: textfield;
}
.count-stepper input::-webkit-outer-spin-button,
.count-stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.count-stepper input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-alpha); }

/* 생성 버튼 */
.gen-btn {
  width: 100%;
  padding: 15px;
  font-family: inherit; font-size: 0.98rem; font-weight: 800;
  color: #000; background: var(--grad);
  border: none; border-radius: var(--r-2);
  cursor: pointer;
  box-shadow: 0 6px 20px var(--primary-glow);
  margin-bottom: 18px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: all var(--t1) var(--ease);
}
.gen-btn::before { content: '$ '; opacity: .7; }
.gen-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px var(--primary-glow); }
.gen-btn svg { width: 18px; height: 18px; }

/* ─── 터미널 출력 패널 ─── */
.term {
  background: var(--surface-2);
  border: var(--bd) solid var(--border-2);
  border-radius: var(--r-5);
  box-shadow: var(--sh-2);
  overflow: hidden;
  margin-bottom: 18px;
}
.term-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 16px;
  background: var(--surface);
  border-bottom: var(--bd) solid var(--border);
}
.term-lights { display: inline-flex; gap: 6px; }
.term-lights i { width: 10px; height: 10px; border-radius: 50%; background: var(--err); }
.term-lights i:nth-child(2) { background: var(--primary); opacity: .7; }
.term-lights i:nth-child(3) { background: var(--ok); }
.term-title {
  font-size: 0.72rem; font-weight: 700; color: var(--text-3);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.term-count {
  margin-left: auto;
  font-size: 0.7rem; font-weight: 700; color: var(--primary);
  background: var(--surface-2);
  border: var(--bd) solid var(--primary-alpha);
  padding: 3px 9px; border-radius: var(--r-1);
}

.term-tools {
  display: flex; gap: 7px; flex-wrap: wrap;
  padding: 12px 16px;
  border-bottom: var(--bd) solid var(--border);
}
.tool-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 13px;
  border-radius: var(--r-1);
  font-family: inherit; font-size: 0.76rem; font-weight: 700;
  color: var(--text-2);
  background: var(--surface);
  border: var(--bd) solid var(--border);
  cursor: pointer;
  transition: all var(--t1) var(--ease);
}
.tool-btn:hover { color: var(--primary); border-color: var(--primary); }
.tool-btn svg { width: 14px; height: 14px; }
.tool-btn.ghost { color: var(--text-3); }
.tool-btn.ghost:hover { color: var(--err); border-color: var(--err); }

.out-list {
  max-height: 440px; overflow-y: auto;
  padding: 6px 0;
}
.out-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  border-bottom: var(--bd) solid var(--border-soft);
  transition: background var(--t1) var(--ease);
}
.out-row:last-child { border-bottom: none; }
.out-row:hover { background: color-mix(in srgb, var(--primary) 6%, transparent); }
.out-idx {
  flex: 0 0 auto; min-width: 26px;
  font-size: 0.72rem; font-weight: 700; color: var(--text-3);
  text-align: right; font-variant-numeric: tabular-nums;
}
.out-val {
  flex: 1; min-width: 0;
  font-size: 0.92rem; font-weight: 600; color: var(--text-strong);
  word-break: break-all; letter-spacing: 0.01em;
}
.out-copy {
  flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: var(--r-1);
  background: transparent;
  border: var(--bd) solid transparent;
  color: var(--text-3);
  cursor: pointer;
  transition: all var(--t1) var(--ease);
}
.out-copy:hover { color: var(--primary); border-color: var(--border-2); background: var(--surface); }
.out-copy.done { color: var(--ok); border-color: var(--ok-border); }
.out-copy svg { width: 15px; height: 15px; }

.out-empty {
  padding: 40px 20px; text-align: center;
  font-size: 0.86rem; color: var(--text-3);
}
.out-empty::before { content: '// '; color: var(--primary); }

/* 토스트 */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--surface); color: var(--text-strong);
  border: var(--bd) solid var(--primary);
  box-shadow: var(--sh-3), 0 0 0 1px var(--primary-alpha);
  padding: 11px 20px; border-radius: var(--r-2);
  font-size: 0.84rem; font-weight: 700;
  opacity: 0; pointer-events: none;
  transition: all 0.25s var(--ease-out);
  z-index: 100;
}
.toast::before { content: '✓ '; color: var(--ok); }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* 정보 카드 (하단 설명/FAQ) */
.info-block { width: 100%; max-width: 720px; margin: 34px auto 0; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .info-grid { grid-template-columns: 1fr; } }
.info-item {
  background: var(--surface);
  border: var(--bd) solid var(--border);
  border-left: 3px solid var(--primary-alpha);
  border-radius: var(--r-3);
  padding: 16px 18px;
}
.info-item h4 {
  font-size: 0.9rem; font-weight: 700; color: var(--text-strong); margin-bottom: 7px;
}
.info-item h4::before { content: '# '; color: var(--primary); }
.info-item p { font-size: 0.82rem; color: var(--text-3); line-height: 1.7; word-break: keep-all; }
.info-item code {
  font-family: inherit; font-size: 0.78rem; color: var(--primary);
  background: var(--surface-2); padding: 1px 5px; border-radius: 4px;
}

@media (max-width: 480px) {
  .tool-hero { margin-top: 30px; }
  .opt-row { flex-direction: column; align-items: flex-start; }
  .out-val { font-size: 0.84rem; }
}