/* ═══ PRODUCT SPOTLIGHT — INTA · 사주공부 · HRUM (shared, accent per product) ═══ */
.hr {
  --hr-bg: #07060d;
  --hr-surface: rgba(255, 255, 255, 0.035);
  --hr-line: rgba(255, 255, 255, 0.09);
  --hr-text: #fff;
  --hr-muted: rgba(255, 255, 255, 0.6);
  --hr-faint: rgba(255, 255, 255, 0.34);
  --hr-accent: #2f6feb;
  --hr-accent-2: #e2683c;
  --hr-ai: #4f8ff7;
  --hr-ease: cubic-bezier(0.16, 1, 0.3, 1);

  position: relative;
  background: var(--hr-bg);
  background-image:
    radial-gradient(ellipse 55% 40% at 80% 8%, rgba(47, 111, 235, 0.16), transparent 70%),
    radial-gradient(ellipse 45% 35% at 10% 70%, rgba(226, 104, 60, 0.07), transparent 70%);
  color: var(--hr-text);
  padding: clamp(80px, 10vw, 140px) 24px;
  border-top: 1px solid var(--hr-line);
  word-break: keep-all;
  overflow-wrap: anywhere;
  overflow: hidden;
}
.hr__inner { max-width: 1120px; margin: 0 auto; }

/* ── Head ── */
.hr__head { max-width: 780px; margin-bottom: clamp(36px, 5vw, 56px); }
.hr__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font: 600 12px 'Poppins', sans-serif;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--hr-accent);
  margin: 0 0 22px;
}
.hr__eyebrow img { width: 34px; height: auto; }
.hr__title {
  font: 800 clamp(34px, 1.2rem + 4vw, 72px)/1.06 'Noto Sans KR', 'Poppins', sans-serif;
  letter-spacing: -0.04em;
  margin: 0 0 22px;
}
.hr__title em { font-style: normal; color: var(--hr-accent); }
.hr__lede {
  font: 400 clamp(16px, 0.9rem + 0.4vw, 19px)/1.75 'Pretendard', 'Noto Sans KR', sans-serif;
  color: var(--hr-muted);
  margin: 0 0 30px;
}
.hr__lede strong { color: var(--hr-text); font-weight: 600; }
.hr__actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hr-btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid var(--hr-line);
  color: var(--hr-text);
  text-decoration: none;
  font: 600 14px 'Poppins', 'Noto Sans KR', sans-serif;
  transition: transform 0.3s var(--hr-ease), border-color 0.2s ease, background 0.2s ease;
}
.hr-btn:hover, .hr-btn:focus-visible { transform: translateY(-2px); border-color: rgba(255, 255, 255, 0.3); }
.hr-btn:focus-visible { outline: 2px solid var(--hr-accent); outline-offset: 3px; }
.hr-btn--primary { background: var(--hr-btn-bg, var(--hr-accent)); border-color: var(--hr-btn-bg, var(--hr-accent)); }
.hr-btn--primary:hover { background: #b873f8; border-color: #b873f8; }

/* ── One / one / one ── */
.hr__ones {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgba(47, 111, 235, 0.35);
  border-radius: 16px;
  background: linear-gradient(90deg, rgba(47, 111, 235, 0.14), rgba(47, 111, 235, 0.03));
  overflow: hidden;
}
.hr__ones li { display: flex; align-items: baseline; gap: 14px; padding: 22px 24px; }
.hr__ones li + li { border-left: 1px solid rgba(47, 111, 235, 0.25); }
.hr__ones b { font: 800 40px/1 'Poppins', sans-serif; color: var(--hr-accent); }
.hr__ones span { font: 600 16px/1.4 'Noto Sans KR', sans-serif; }

/* ── Bento grid ── */
.hr__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.hr-tile {
  --c: var(--hr-accent);
  position: relative;
  padding: 26px 24px;
  border-radius: 16px;
  background: var(--hr-surface);
  border: 1px solid var(--hr-line);
  transition: border-color 0.3s ease, background 0.3s ease;
}
.hr-tile:hover { border-color: color-mix(in srgb, var(--c) 45%, transparent); background: color-mix(in srgb, var(--c) 6%, transparent); }
.hr-tile--wide { grid-column: span 2; }
.hr-tile--saju { --c: var(--hr-accent-2); }
.hr-tile--ai, .hr-tile--memory { --c: var(--hr-ai); }
.hr-tile--apps, .hr-tile--db { --c: #22c55e; }
.hr-tile--console { --c: #a99ff2; }
.hr-tile__kicker {
  font: 600 11px 'Poppins', sans-serif;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c);
  margin: 0 0 10px;
}
.hr-tile__name { font: 700 21px/1.3 'Noto Sans KR', 'Poppins', sans-serif; letter-spacing: -0.02em; margin: 0 0 10px; }
.hr-tile__desc { font: 400 14.5px/1.7 'Pretendard', 'Noto Sans KR', sans-serif; color: var(--hr-muted); margin: 0; }
.hr-tile__chips { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.hr-tile__chips li {
  font: 500 12px 'Share Tech Mono', ui-monospace, monospace;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(226, 104, 60, 0.1);
  color: rgba(255, 200, 175, 0.9);
}
.hr-tile__flow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 16px 0 0; font: 500 13px 'Poppins', 'Noto Sans KR', sans-serif; }
.hr-tile__flow span { padding: 5px 11px; border-radius: 999px; background: rgba(255, 255, 255, 0.06); }
.hr-tile__flow span.is-key { background: rgba(34, 197, 94, 0.16); color: #86efac; }
.hr-tile__flow i { font-style: normal; color: var(--hr-faint); }

/* ── Proof ── */
.hr__proof { display: grid; grid-template-columns: 1.25fr 1fr; gap: 14px; margin-top: 14px; }
.hr-code {
  border-radius: 16px;
  background: #0d0c16;
  border: 1px solid var(--hr-line);
  padding: 0 0 18px;
  overflow: hidden;
}
.hr-code__bar { display: flex; align-items: center; gap: 6px; margin: 0; padding: 12px 16px; border-bottom: 1px solid var(--hr-line); }
.hr-code__bar span { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, 0.14); }
.hr-code__bar em { margin-left: auto; font: 500 11px 'Share Tech Mono', monospace; font-style: normal; color: rgba(255, 255, 255, 0.5); }
.hr-code pre { margin: 0; padding: 18px 20px 6px; overflow-x: auto; }
.hr-code code { font: 400 13px/1.7 'Share Tech Mono', ui-monospace, monospace; color: rgba(255, 255, 255, 0.82); white-space: pre; }
.hr-code code b { color: var(--hr-accent); font-weight: 700; }
.hr-code__note { margin: 6px 20px 0; font: 400 13px/1.6 'Pretendard', 'Noto Sans KR', sans-serif; color: var(--hr-muted); }
.hr-code__note strong { color: var(--hr-text); }

.hr__ref {
  border-radius: 16px;
  padding: 24px;
  border: 1px solid rgba(139, 127, 232, 0.35);
  background: linear-gradient(160deg, rgba(139, 127, 232, 0.16), rgba(139, 127, 232, 0.03));
}
.hr__ref-k { font: 600 11px 'Poppins', sans-serif; letter-spacing: 2px; text-transform: uppercase; color: #a99ff2; margin: 0 0 10px; }
.hr__ref-t { font: 700 19px/1.5 'Noto Sans KR', sans-serif; margin: 0 0 16px; }
.hr__facts { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.hr__facts li { font: 400 14px/1.55 'Pretendard', 'Noto Sans KR', sans-serif; color: var(--hr-muted); padding-left: 14px; position: relative; }
.hr__facts li::before { content: ''; position: absolute; left: 0; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: #a99ff2; }

/* ── Ebooks ── */
.hr__books {
  margin-top: 14px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px 28px;
  padding: 22px 24px;
  border-radius: 16px;
  border: 1px dashed rgba(255, 255, 255, 0.16);
}
.hr__books-k { margin: 0; font: 700 15px 'Noto Sans KR', sans-serif; }
.hr__books-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; }
.hr__books-list li { font: 400 14px 'Pretendard', 'Noto Sans KR', sans-serif; color: var(--hr-muted); }
.hr__books-list b { font: 700 12px 'Poppins', sans-serif; color: var(--hr-accent); margin-right: 8px; }
.hr__books-link { font: 600 14px 'Poppins', 'Noto Sans KR', sans-serif; color: var(--hr-text); text-decoration: none; border-bottom: 1px solid var(--hr-faint); white-space: nowrap; }
.hr__books-link:hover, .hr__books-link:focus-visible { border-color: var(--hr-accent); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hr__grid { grid-template-columns: repeat(2, 1fr); }
  .hr__proof { grid-template-columns: 1fr; }
  .hr__books { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hr { padding-left: 16px; padding-right: 16px; }
  .hr__ones { grid-template-columns: 1fr; }
  .hr__ones li + li { border-left: 0; border-top: 1px solid rgba(47, 111, 235, 0.25); }
  .hr__ones li { padding: 16px 20px; }
  .hr__ones b { font-size: 30px; }
  .hr__grid { grid-template-columns: 1fr; }
  .hr-tile--wide { grid-column: auto; }
  .hr-code code { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .hr-btn { transition: none; }
  .hr-btn:hover { transform: none; }
}

/* ── Per-product accents ── */
.hr--inta {
  --hr-accent: #8b7fe8;
  --hr-btn-bg: #7369c1; /* accent darkened to 4.6:1 under white button text */
  background-image:
    radial-gradient(ellipse 55% 40% at 80% 8%, rgba(139, 127, 232, 0.18), transparent 70%),
    radial-gradient(ellipse 45% 35% at 10% 70%, rgba(79, 143, 247, 0.07), transparent 70%);
}
.hr--academy {
  --hr-accent: #b32b18;
  background-image:
    radial-gradient(ellipse 55% 40% at 80% 8%, rgba(179, 43, 24, 0.20), transparent 70%),
    radial-gradient(ellipse 45% 35% at 10% 70%, rgba(245, 158, 11, 0.06), transparent 70%);
}
.hr--inta .hr__ones, .hr--academy .hr__ones {
  border-color: color-mix(in srgb, var(--hr-accent) 35%, transparent);
  background: linear-gradient(90deg, color-mix(in srgb, var(--hr-accent) 14%, transparent), color-mix(in srgb, var(--hr-accent) 3%, transparent));
}
.hr--inta .hr__ones li + li, .hr--academy .hr__ones li + li { border-color: color-mix(in srgb, var(--hr-accent) 25%, transparent); }
.hr__ones b.is-word { font-size: 26px; }
.hr-btn--primary { background: var(--hr-btn-bg, var(--hr-accent)); border-color: var(--hr-btn-bg, var(--hr-accent)); }
.hr-btn--primary:hover { background: color-mix(in srgb, var(--hr-accent) 85%, #fff); border-color: color-mix(in srgb, var(--hr-accent) 85%, #fff); }
.hr__eyebrow .hr__mark { width: 26px; height: 26px; border-radius: 7px; object-fit: cover; }
.hr__eyebrow .hr__glyph { font: 700 18px 'Noto Serif KR', 'Noto Sans KR', serif; color: var(--hr-accent); letter-spacing: 0; }

/* Formula / hanja cards (INTA energy, 사주공부 layers) */
.hr-formula {
  border-radius: 16px;
  border: 1px solid var(--hr-line);
  background: #0d0c16;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}
.hr-formula__k { margin: 0; font: 600 11px 'Poppins', sans-serif; letter-spacing: 2px; text-transform: uppercase; color: rgba(255, 255, 255, 0.5); }
.hr-formula__eq { margin: 0; font: 500 clamp(15px, 0.8rem + 0.6vw, 20px)/1.6 'Share Tech Mono', ui-monospace, monospace; color: rgba(255, 255, 255, 0.9); }
.hr-formula__eq b { color: var(--hr-accent); font-weight: 700; }
.hr-formula__note { margin: 0; font: 400 14px/1.6 'Pretendard', 'Noto Sans KR', sans-serif; color: var(--hr-muted); }
.hr-layers { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.hr-layers li { display: grid; grid-template-columns: 88px 1fr; gap: 12px; align-items: baseline; font: 400 14px/1.5 'Pretendard', 'Noto Sans KR', sans-serif; color: var(--hr-muted); }
.hr-layers li b { font: 700 13px 'Noto Sans KR', sans-serif; color: var(--hr-accent); }
.hr-layers li em { font-style: normal; font-family: 'Noto Serif KR', serif; color: var(--hr-text); margin-right: 6px; }

/* Section switcher under the engine diagram */
.spot-nav { position: relative; background: #05050c; padding: 0 24px 8px; }
.spot-nav__inner { max-width: 1120px; margin: 0 auto; display: flex; flex-wrap: wrap; gap: 8px; }
.spot-nav a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff; text-decoration: none;
  font: 600 14px 'Poppins', 'Noto Sans KR', sans-serif;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.spot-nav a i { width: 8px; height: 8px; border-radius: 50%; background: var(--c); }
.spot-nav a:hover, .spot-nav a:focus-visible { border-color: var(--c); background: color-mix(in srgb, var(--c) 10%, transparent); }
.spot-nav a:focus-visible { outline: 2px solid var(--c); outline-offset: 3px; }
.hr-btn--status {
  cursor: default;
  color: var(--hr-accent);
  border-color: color-mix(in srgb, var(--hr-accent) 40%, transparent);
  background: color-mix(in srgb, var(--hr-accent) 8%, transparent);
}
.hr-btn--status:hover { transform: none; }
.hr-tile .hr-layers { margin-top: 14px; }
.hr__eyebrow .hr__seal { width: 28px; height: auto; }

/* HRUM — blue gradient brand (#3730a3 → #2f6feb → #06b6d4) */
.hr--hrum { --hr-grad: linear-gradient(90deg, #3730a3, #2f6feb, #06b6d4); }
.hr--hrum .hr__title em { background: var(--hr-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hr--hrum .hr__eyebrow { color: #6ea0ff; }
.hr--hrum .hr-btn--primary { background: var(--hr-grad); border-color: transparent; }
.hr--hrum .hr-btn--primary:hover { background: var(--hr-grad); filter: brightness(1.12); }
.hr--hrum .hr__ones b { background: var(--hr-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hr--hrum .hr-code code b { color: #6ea0ff; }

/* 사주공부 — seal red #b32b18 from the brand logo; lighter tint (#ce7569) only for small text on dark */
.hr--academy .hr__eyebrow,
.hr--academy .hr__title em,
.hr--academy .hr__ones b,
.hr--academy .hr-btn--status,
.hr--academy .hr-layers li b { color: #ce7569; }
.hr--academy .hr-tile--saju { --c: #ce7569; }
.hr--academy .hr-tile__chips li { background: rgba(179, 43, 24, 0.16); color: #f0c2b9; }
.hr__mark--paper { background: #f3eee3; }