/* ═══════════════════════════════════════════════════════════
   이루리 v6 홈 v4 — ipsiruri.com pure copy + AEO 메타 박제
   source of truth: https://ipsiruri.com/ (2026-05-28 실측)
   - body bg #0f1218 · alt #131820 · 골드 accent · Pretendard 800
   - 8 section: Hero·WHY·FOR WHOM·OUR COURSES·3밀착·INSIGHTS·YOUTUBE·START NOW
═══════════════════════════════════════════════════════════ */

@import url('../build/tokens.css');
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.css');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; }
:focus-visible { outline: 2px solid #c5a572; outline-offset: 2px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

body {
  background: #0f1218;
  color: rgba(255, 255, 255, 0.88);
  font-family: 'Pretendard Variable', Pretendard, system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}

/* ─────── Tokens 보조 ─────── */
:root {
  --iruri-bg: #0f1218;
  --iruri-bg-alt: #131820;
  --iruri-bg-card: rgba(255, 255, 255, 0.02);
  --iruri-border: rgba(255, 255, 255, 0.06);
  --iruri-border-strong: rgba(255, 255, 255, 0.12);
  --iruri-text: rgba(255, 255, 255, 0.92);
  --iruri-text-mute: rgba(255, 255, 255, 0.72);
  --iruri-text-dim: rgba(255, 255, 255, 0.60);
  --iruri-gold: #c5a572;
  --iruri-gold-light: #e6c370;
  /* ── 과목 3색군 (R13 무지개 축소 + V8-3 hardcode drift 해소, 2026-05-29) ──
     척추 3색(진녹·금) 기반. 인문=금, 이공=진녹+금 그라데, 논술/컨설팅=금foil. */
  --iruri-cluster-humanities: linear-gradient(90deg, var(--iruri-base-gold-classic, #c5a572) 0%, var(--iruri-base-gold-foil-3, #e6c370) 100%);
  --iruri-cluster-stem:       linear-gradient(90deg, var(--iruri-base-green-forest, #006241) 0%, var(--iruri-base-gold-classic, #c5a572) 100%);
  --iruri-cluster-essay:      linear-gradient(90deg, var(--iruri-base-gold-classic, #c5a572) 0%, var(--iruri-base-gold-foil-4, #fff4cb) 100%);
}

/* ═══════════════════════════════════════════════════════════
   Nav (sticky)
═══════════════════════════════════════════════════════════ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 18, 24, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--iruri-border);
}
.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 24px;
}
.site-nav__logo { display:flex; align-items:center; gap:9px; text-decoration:none; }
.site-nav__logo img { height:30px; width:auto; }
.site-nav__logo span { font-weight:800; font-size:17px; color:#fff; letter-spacing:-0.02em; }
.site-nav__menu {
  display: flex;
  gap: 36px;
  flex: 1;
  justify-content: center;
}
.site-nav__menu a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.site-nav__menu a:hover { color: #ffffff; }
.site-nav__menu a::after {
  content: '';
}
.site-nav__menu a[data-submenu]::after {
  content: '⌄';
  font-size: 10px;
  opacity: 0.6;
  margin-left: 2px;
}
.site-nav__cta {
  background: linear-gradient(135deg, #c5a572 0%, #e6c370 100%);
  color: #0f1218;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  letter-spacing: -0.01em;
}
.site-nav__cta:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(197, 165, 114, 0.3); }
.site-nav__cta svg { width: 16px; height: 16px; }

/* ═══════════════════════════════════════════════════════════
   §1 HERO
═══════════════════════════════════════════════════════════ */
.hero {
  padding: 176px 0 112px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 20%;
  left: -20%;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle, rgba(197, 165, 114, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 64px;
  align-items: start;
}
.hero__eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--iruri-gold);
  letter-spacing: 0.25em;
  font-weight: 600;
  margin-bottom: 28px;
}
.hero__title {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 64px;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 24px;
}
.hero__lede {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin-bottom: 48px;
}
.hero__features {
  list-style: none;
  padding: 0;
  margin: 0 0 48px;
}
.hero__features li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--iruri-border);
  font-size: 14px;
  line-height: 1.55;
}
.hero__features li:last-child { border-bottom: 1px solid var(--iruri-border); }
.hero__features li::before {
  content: '—';
  color: var(--iruri-gold);
  font-weight: 700;
}
.hero__features li strong {
  display: block;
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 2px;
}
.hero__features li span {
  color: var(--iruri-text-mute);
  font-size: 13px;
}
.hero__brand-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  font-size: 13px;
  color: var(--iruri-text-mute);
}
.hero__brand-line strong {
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.15em;
}
.hero__cta-group { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  background: linear-gradient(135deg, #c5a572 0%, #e6c370 100%);
  color: #0f1218;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(197, 165, 114, 0.3); }
.btn-ghost {
  background: transparent;
  color: #ffffff;
  border: 1px solid var(--iruri-border-strong);
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.btn-ghost:hover { border-color: var(--iruri-gold); background: rgba(197, 165, 114, 0.08); }
.btn-primary svg, .btn-ghost svg { width: 16px; height: 16px; }
.hero__note {
  margin-top: 36px;
  font-size: 12px;
  color: var(--iruri-text-dim);
}

/* Hero 우측 contact card */
.hero__card {
  background: var(--iruri-bg-alt);
  border: 1px solid var(--iruri-border);
  border-radius: 12px;
  padding: 32px;
}
.hero__card-section + .hero__card-section { margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--iruri-border); }
.hero__card-label {
  font-size: 12px;
  color: var(--iruri-text-dim);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.hero__card-phone {
  font-family: 'Pretendard Variable', sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
  text-decoration: none;
  display: block;
  margin-bottom: 12px;
}
.hero__card-addr {
  font-size: 13px;
  color: var(--iruri-text-mute);
  line-height: 1.5;
}
.hero__card-target { font-size: 12px; color: var(--iruri-text-dim); margin-bottom: 8px; letter-spacing: 0.05em; }
.hero__card-target-list { list-style: none; padding: 0; margin: 0; }
.hero__card-target-list li {
  font-size: 14px;
  color: var(--iruri-text);
  padding: 4px 0;
  line-height: 1.5;
}

/* Hero 학부모 quote 3 카드 */
.hero__quotes {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.quote-card {
  background: var(--iruri-bg-card);
  border: 1px solid var(--iruri-border);
  border-radius: 8px;
  padding: 20px 24px;
  font-size: 13px;
  color: var(--iruri-text-mute);
  line-height: 1.55;
  display: flex;
  gap: 12px;
}
.quote-card::before {
  content: '';
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  background: rgba(197, 165, 114, 0.1);
  border-radius: 4px;
  background-image: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="%23c5a572" stroke-width="2"%3E%3Cpath d="M21 11.5a8.38 8.38 0 0 1-.9 3.8 8.5 8.5 0 0 1-7.6 4.7 8.38 8.38 0 0 1-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 0 1-.9-3.8 8.5 8.5 0 0 1 4.7-7.6 8.38 8.38 0 0 1 3.8-.9h.5a8.48 8.48 0 0 1 8 8v.5z"/%3E%3C/svg%3E');
  background-repeat: no-repeat;
  background-position: center;
}
.hero__system-tagline {
  margin-top: 36px;
  text-align: center;
  font-size: 14px;
  color: var(--iruri-text-mute);
}
.hero__system-tagline strong { color: #ffffff; font-weight: 700; }

/* ═══════════════════════════════════════════════════════════
   Section common
═══════════════════════════════════════════════════════════ */
.section { padding: 96px 0; }
.section--alt { background: var(--iruri-bg-alt); }
.section--bordered { border-top: 1px solid var(--iruri-border); border-bottom: 1px solid var(--iruri-border); }
.section__head { text-align: center; margin-bottom: 56px; }
.section__eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--iruri-gold);
  letter-spacing: 0.25em;
  font-weight: 600;
  margin-bottom: 16px;
}
.section__title {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 40px;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: #ffffff;
  margin-bottom: 16px;
}
.section__lede {
  font-size: 15px;
  color: var(--iruri-text-mute);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════
   §2 WHY IRURI — 3 카드
═══════════════════════════════════════════════════════════ */
/* ── §2 WHY: 균등 3카드 → 1+2 비대칭 (2026-05-29 D-06 표본 ①) ──
   첫 카드를 좌측 세로 전폭으로 키우고 2·3을 우측에 적층 = editorial 비대칭. */
.why__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 24px;
}
.why-card:nth-child(1) {
  grid-row: 1 / span 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.why-card {
  background: var(--iruri-bg);
  border: 1px solid var(--iruri-border);
  border-radius: 12px;
  padding: 36px 32px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.why-card:hover { border-color: rgba(197, 165, 114, 0.3); transform: translateY(-3px); }
.why-card__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--iruri-gold);
  letter-spacing: 0.2em;
  margin-bottom: 24px;
}
.why-card__title {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 22px;
  color: #ffffff;
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.why-card__desc {
  font-size: 14px;
  color: var(--iruri-text-mute);
  line-height: 1.65;
}

/* ═══════════════════════════════════════════════════════════
   §3 FOR WHOM
═══════════════════════════════════════════════════════════ */
.forwhom__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  max-width: 960px;
  margin: 0 auto;
}
.forwhom__list { list-style: none; padding: 0; margin: 0; }
.forwhom__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--iruri-border);
  font-size: 15px;
  color: var(--iruri-text);
}
.forwhom__list li:last-child { border-bottom: 0; }
.forwhom__list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--iruri-gold);
  flex-shrink: 0;
}
.forwhom__oneline {
  text-align: center;
}
.forwhom__oneline-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--iruri-gold);
  letter-spacing: 0.25em;
  margin-bottom: 24px;
}
.forwhom__oneline-quote {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 32px;
  line-height: 1.3;
  letter-spacing: -0.025em;
  color: #ffffff;
  margin-bottom: 20px;
}
.forwhom__oneline-quote em { color: var(--iruri-gold); font-style: normal; }
.forwhom__oneline-sub {
  font-size: 14px;
  color: var(--iruri-text-mute);
}

/* ═══════════════════════════════════════════════════════════
   §4 OUR COURSES — 카드 grid (3×N)
═══════════════════════════════════════════════════════════ */
.courses__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.course-card {
  background: var(--iruri-bg);
  border: 1px solid var(--iruri-border);
  border-radius: 12px;
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  min-height: 280px;
}
.course-card:hover { border-color: rgba(197, 165, 114, 0.3); transform: translateY(-3px); }
.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent, #c5a572);
}
/* ── 과목 accent: 무지개 7색 → 3색군(이공/인문/논술·컨설팅) 토큰 통일 (2026-05-29 R13·V8-3) ──
   척추색 위계: 골드(공통 강조) · 진녹(이공/데이터) · 골드foil(논술·컨설팅).
   인문계는 골드 단색으로 수렴 — 한국 잔상 핑크/무지개 제거. 전부 var() 참조 = hardcode drift 0. */
.course-card--korean,
.course-card--english,
.course-card--society    { --accent: var(--iruri-cluster-humanities); }
.course-card--math,
.course-card--science,
.course-card--humanity   { --accent: var(--iruri-cluster-stem); }
.course-card--math-essay,
.course-card--consulting { --accent: var(--iruri-cluster-essay); }

.course-card__header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 24px; }
.course-card__tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--tag-bg, rgba(197, 165, 114, 0.12));
  color: var(--tag-color, #c5a572);
}
/* ── tag 색: 무지개 → 3색군 토큰 통일 (2026-05-29 R13·V8-3) ── */
.course-card--korean .course-card__tag,
.course-card--english .course-card__tag,
.course-card--society .course-card__tag,
.course-card--math-essay .course-card__tag,
.course-card--consulting .course-card__tag { background: rgba(197, 165, 114, 0.12); color: var(--iruri-gold); }
.course-card--math .course-card__tag,
.course-card--science .course-card__tag,
.course-card--humanity .course-card__tag { background: rgba(0, 98, 65, 0.16); color: #4a9d7e; }

.course-card__icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  display: grid;
  place-items: center;
  color: var(--iruri-text-mute);
}
.course-card__icon svg { width: 16px; height: 16px; }

.course-card__title {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.course-card__list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  flex: 1;
}
.course-card__list li {
  font-size: 13px;
  color: var(--iruri-text-mute);
  line-height: 1.7;
  padding: 4px 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.course-card__list li::before {
  content: '•';
  color: var(--iruri-gold);
}
.course-card__link {
  margin-top: auto;
  font-size: 13px;
  color: var(--iruri-gold); /* 핫핑크 #ec4899 제거 → 골드 통일 (2026-05-29 V9-1) */
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.15s ease;
}
.course-card:hover .course-card__link { gap: 10px; }
/* ── 과목별 무지개 link 색 제거 → 이공계만 진녹 틴트, 나머지 골드 (2026-05-29 R13·V8-3) ── */
.course-card--math .course-card__link,
.course-card--science .course-card__link,
.course-card--humanity .course-card__link { color: #4a9d7e; }

/* 입시컨설팅 wide card */
.consulting-card {
  background: linear-gradient(135deg, rgba(197, 165, 114, 0.08) 0%, rgba(197, 165, 114, 0.02) 100%);
  border: 1px solid rgba(197, 165, 114, 0.25);
  border-radius: 12px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.consulting-card__head h3 {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 32px;
  color: #ffffff;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}
.consulting-card__head p {
  font-size: 14px;
  color: var(--iruri-text-mute);
  line-height: 1.65;
  margin-bottom: 24px;
}
.consulting-card__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.consulting-card__tags span {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--iruri-border);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 12px;
  color: var(--iruri-text);
}
.consulting-card__meta {
  font-size: 13px;
  color: var(--iruri-text-mute);
  margin-bottom: 20px;
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════
   §5 3밀착 시스템
═══════════════════════════════════════════════════════════ */
.system__hero {
  text-align: center;
  margin-bottom: 48px;
}
.system__hero-stack {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 64px;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: #ffffff;
}
.system__hero-stack span:nth-child(1) { color: var(--iruri-gold); }
.system__hero-stack span:nth-child(2) { font-size: 88px; }

/* ── §5 academy cluster: 진녹 척추 도입 (2026-05-29 V8-2 — green-forest 화면 0회 해소) ──
   tokens.css --iruri-cluster-academy 의 green-forest 를 학원 성격 섹션 배경 wash 로 복원. */
.section--bordered {
  background:
    radial-gradient(circle at 0% 0%, rgba(0, 98, 65, 0.10) 0%, transparent 42%),
    var(--iruri-bg);
}
.system__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.system-card {
  background: var(--iruri-bg);
  border: 1px solid var(--iruri-border);
  border-radius: 12px;
  padding: 32px;
  position: relative;
  overflow: hidden;
}
/* 진녹 척추 강조 bar — 학원(academy) cluster 정체색 (2026-05-29 V8-2) */
.system-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: linear-gradient(180deg,
    var(--iruri-base-green-forest, #006241) 0%,
    var(--iruri-base-gold-classic, #c5a572) 100%);
}
.system-card h3 {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 18px;
  color: var(--iruri-gold);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.system-card__lede {
  font-size: 13px;
  color: var(--iruri-text-mute);
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--iruri-border);
}
.system-card__list { list-style: none; padding: 0; margin: 0; }
.system-card__list li {
  font-size: 13px;
  color: var(--iruri-text);
  padding: 4px 0;
  line-height: 1.55;
}
.system-card__subtotal {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--iruri-border);
  font-size: 13px;
  color: var(--iruri-text-mute);
  font-style: italic;
}

.system__sub-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.sub-card {
  background: var(--iruri-bg-alt);
  border: 1px solid var(--iruri-border);
  border-radius: 8px;
  padding: 20px;
}
.sub-card h4 {
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}
.sub-card p {
  font-size: 12px;
  color: var(--iruri-text-mute);
  line-height: 1.55;
}

/* ═══════════════════════════════════════════════════════════
   §6 INSIGHTS — 블로그 3
═══════════════════════════════════════════════════════════ */
.insights__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
  flex-wrap: wrap;
  gap: 24px;
}
.insights__more {
  font-size: 14px;
  color: var(--iruri-gold);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
/* ── §6 INSIGHTS: 균등 3카드 → 좌 feature + 우 2적층 비대칭 (2026-05-29 D-06 표본 ②) ── */
.insights__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
}
.insights__grid .insight-card:first-child {
  grid-row: 1 / span 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.insights__grid .insight-card:first-child .insight-card__title {
  font-size: 22px;
  line-height: 1.4;
}
.insight-card {
  background: var(--iruri-bg);
  border: 1px solid var(--iruri-border);
  border-radius: 12px;
  padding: 28px;
  text-decoration: none;
  display: block;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.insight-card:hover { border-color: rgba(197, 165, 114, 0.3); transform: translateY(-3px); }
.insight-card__category {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--iruri-gold);
  letter-spacing: 0.15em;
  margin-bottom: 12px;
  display: block;
}
.insight-card__title {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: #ffffff;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}
.insight-card__tags {
  font-size: 12px;
  color: var(--iruri-text-dim);
}

/* ═══════════════════════════════════════════════════════════
   §7 YOUTUBE
═══════════════════════════════════════════════════════════ */
.youtube__cta {
  text-align: center;
  margin-top: 32px;
}
.youtube__cta a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #c5a572 0%, #e6c370 100%);
  color: #0f1218;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.15s ease;
}
.youtube__cta a:hover { transform: translateY(-1px); }
.youtube__cta a svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ─── SVG 안전망 (사이즈 미정의 시 fallback) ─── */
svg { display: inline-block; vertical-align: middle; }
a svg, button svg { flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════
   §8 START NOW
═══════════════════════════════════════════════════════════ */
.start {
  text-align: center;
  padding: 96px 0;
  border-top: 1px solid var(--iruri-border);
}
.start__title {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 48px;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 16px;
}
.start__lede { font-size: 15px; color: var(--iruri-text-mute); margin-bottom: 36px; }
.start__cta-group {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════════════════════════
   Footer
═══════════════════════════════════════════════════════════ */
.site-footer {
  background: var(--iruri-bg-alt);
  border-top: 1px solid var(--iruri-border);
  padding: 64px 0 32px;
  font-size: 13px;
  color: var(--iruri-text-mute);
}
.site-footer__top {
  display: grid;
  grid-template-columns: 1.5fr 2fr 1.5fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--iruri-border);
}
.site-footer__brand-name {
  font-family: 'Pretendard Variable', sans-serif;
  font-weight: 800;
  font-size: 18px;
  color: #ffffff;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.site-footer__brand-info { line-height: 1.7; }
.site-footer__brand-info strong { color: #ffffff; font-weight: 600; }
.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.site-footer__nav-group h3 { color: #ffffff; font-weight: 700; font-size: 13px; margin-bottom: 12px; }
.site-footer__nav-group ul { list-style: none; padding: 0; margin: 0; }
.site-footer__nav-group li { margin-bottom: 6px; }
.site-footer__nav-group a { color: var(--iruri-text-mute); font-size: 13px; text-decoration: none; transition: color 0.15s ease; }
.site-footer__nav-group a:hover { color: var(--iruri-gold); }
.site-footer__legal {
  font-size: 12px;
  color: var(--iruri-text-dim);
  margin-bottom: 8px;
  line-height: 1.7;
}
.site-footer__legal strong { color: var(--iruri-text-mute); }
.site-footer__legal a { color: var(--iruri-text-mute); text-decoration: none; }
.site-footer__copyright {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--iruri-border);
  font-size: 12px;
  color: var(--iruri-text-dim);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer__copyright a { color: var(--iruri-text-mute); text-decoration: none; margin-left: 16px; }

/* ═══════════════════════════════════════════════════════════
   Floating CTA
═══════════════════════════════════════════════════════════ */
.float-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.float-cta a {
  background: linear-gradient(135deg, #c5a572 0%, #e6c370 100%);
  color: #0f1218;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 13px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 6px 20px rgba(197, 165, 114, 0.35);
}
.float-cta a svg { width: 16px; height: 16px; }

/* ═══════════════════════════════════════════════════════════
   Responsive
═══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 32px; }
  .hero__quotes { grid-template-columns: 1fr; }
  .why__grid, .courses__grid, .system__grid, .insights__grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  /* 비대칭 span 해제 (태블릿: 균등 2열로 환원) — D-06 비대칭은 데스크탑 한정 */
  .why-card:nth-child(1), .insights__grid .insight-card:first-child { grid-row: auto; }
  .system__sub-grid { grid-template-columns: 1fr 1fr; }
  .consulting-card { grid-template-columns: 1fr; padding: 32px; }
  .forwhom__grid { grid-template-columns: 1fr; gap: 32px; }
  .site-footer__top { grid-template-columns: 1fr; }
  .hero__title { font-size: 48px; }
  .system__hero-stack { font-size: 48px; }
  .system__hero-stack span:nth-child(2) { font-size: 64px; }
}
@media (max-width: 640px) {
  /* ── Mobile nav: hamburger drawer (2026-05-28 design-critic L8·L9 fix) ── */
  .site-nav__menu {
    display: none;
    position: fixed; top: 64px; left: 0; right: 0;
    background: #0f1218;
    border-top: 1px solid rgba(255,255,255,0.08);
    flex-direction: column; padding: 16px 24px; gap: 4px;
    z-index: 999; max-height: calc(100vh - 64px); overflow-y: auto;
  }
  .site-nav__menu.is-open { display: flex; }
  .site-nav__menu a {
    padding: 14px 0; font-size: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
  }
  .site-nav__toggle { display: inline-flex; }
  .site-nav__cta { padding: 8px 14px; font-size: 13px; }
  /* ── 기존 모바일 grid ── */
  .why__grid, .courses__grid, .system__grid, .insights__grid, .system__sub-grid { grid-template-columns: 1fr; }
  .hero__title { font-size: 36px; }
  .section__title { font-size: 28px; }
  .start__title { font-size: 32px; }
  .forwhom__oneline-quote { font-size: 24px; }
  .hero { padding: 120px 0 64px; }
  .section { padding: 64px 0; }
}

/* ── Mobile nav toggle (default hidden on desktop) ── */
.site-nav__toggle {
  display: none; align-items: center; gap: 8px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.16);
  color: #fafaf7;
  padding: 8px 12px; border-radius: 8px;
  font: inherit; font-size: 13px; cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.site-nav__toggle:hover { border-color: #c5a572; }
.site-nav__toggle:focus-visible { outline: 2px solid #c5a572; outline-offset: 2px; }
.site-nav__toggle svg { width: 18px; height: 18px; flex-shrink: 0; }
.site-nav__toggle .site-nav__toggle-close { display: none; }
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-open { display: none; }
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-close { display: block; }
.footer-section-title { color: #fff; font-weight: 700; font-size: 13px; margin-bottom: 12px; }