/* ──────────────────────────────────────────────────────────────────
   Renewjen Academy — Site styles
   Extends the Product Review Deck design tokens (colors_and_type.css)
   ────────────────────────────────────────────────────────────────── */

@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@300;400;500;600;700&display=swap");
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css");

:root {
  /* Site uses Pretendard for Korean UI/body, Noto Serif KR for editorial display, Plus Jakarta Sans for English accents */
  --font-kr:      "Pretendard Variable", Pretendard, system-ui, -apple-system, "Helvetica Neue", sans-serif;
  --font-kr-serif:"Noto Serif KR", "Iowan Old Style", Georgia, serif;
  --font-en:      "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;

  /* Resolved palette — overrideable for tweak: accent */
  --rj-ink:    #001D3D;
  --rj-paper:  #FFFBF0;
  --rj-paper-2:#F5F0E0;       /* cream — surface differentiation */
  --rj-line:   #001D3D;
  --rj-muted:  rgba(0,29,61,0.55);
  --rj-faint:  rgba(0,29,61,0.12);
  --rj-accent: #FFD60A;       /* primary yellow (default) */
  --rj-accent-ink: #001D3D;   /* navy text on accent */

  --rj-r:      14px;
  --rj-r-sm:   6px;
  --rj-r-pill: 999px;

  --rj-shell-pad: 32px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-kr);
  background: var(--rj-paper);
  color: var(--rj-ink);
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button, input, select, textarea { font-family: inherit; color: inherit; }

/* 한국어 줄바꿈 — 어절(단어)이 중간에서 잘리지 않게 (예: '검정고시'가 '검정/고시'로 쪼개지는 현상 방지) */
p, h1, h2, h3, h4, h5, h6, li, blockquote, figcaption, dd, dt, .body-lg {
  word-break: keep-all;
  text-wrap: pretty;
}
button { background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Editorial type utilities ───────────────────────────────────── */
.eyebrow {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}
.eyebrow.no-rule::before { display: none; }

.display {
  font-family: var(--font-kr-serif);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.05;
}
.display-en {
  font-family: var(--font-en);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 0.95;
  font-style: italic;
}

.body-lg { font-size: 17px; line-height: 1.65; letter-spacing: -0.015em; }
.label-cap {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.num-en {
  font-family: var(--font-en);
  font-feature-settings: "tnum";
  letter-spacing: -0.02em;
}

/* ── Layout helpers ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}
.container-wide {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

.hairline { background: var(--rj-line); height: 1px; width: 100%; }
.hairline-soft { background: var(--rj-faint); height: 1px; width: 100%; }

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: var(--rj-r-pill);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
  transition: opacity 0.15s ease, transform 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:hover { opacity: 0.85; }
.btn:active { opacity: 0.7; transform: scale(0.98); }
.btn-primary { background: var(--rj-ink); color: var(--rj-paper); }
.btn-accent  { background: var(--rj-accent); color: var(--rj-accent-ink); }
.btn-ghost   { background: transparent; color: var(--rj-ink); border: 1px solid var(--rj-line); }
.btn-soft    { background: var(--rj-paper-2); color: var(--rj-ink); }
.btn-link    { background: none; color: var(--rj-ink); height: auto; padding: 0; border-radius: 0; text-decoration: underline; text-underline-offset: 4px; }
.btn-sm      { height: 36px; padding: 0 16px; font-size: 13px; }
.btn-lg      { height: 54px; padding: 0 28px; font-size: 15px; }
.btn-block   { width: 100%; }
.btn-circle  { width: 44px; height: 44px; padding: 0; border-radius: 50%; }

/* ── Inputs ─────────────────────────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: 8px; }
.field > label {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rj-muted);
}
.input {
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--rj-line);
  border-radius: var(--rj-r-sm);
  background: transparent;
  font-size: 15px;
  outline: none;
  transition: box-shadow 0.15s ease;
}
.input:focus { box-shadow: inset 0 0 0 1px var(--rj-ink); }
.input-lg { height: 56px; font-size: 16px; }
.input::placeholder { color: var(--rj-muted); }

/* ── Cards ──────────────────────────────────────────────────────── */
.card {
  background: var(--rj-paper);
  border: 1px solid var(--rj-line);
  border-radius: var(--rj-r);
  overflow: hidden;
}
.card-ink {
  background: var(--rj-ink);
  color: var(--rj-paper);
  border-radius: var(--rj-r);
  overflow: hidden;
}
.card-soft {
  background: var(--rj-paper-2);
  border-radius: var(--rj-r);
  overflow: hidden;
}
.card-accent {
  background: var(--rj-accent);
  color: var(--rj-accent-ink);
  border-radius: var(--rj-r);
  overflow: hidden;
}

/* ── Pill / chips ───────────────────────────────────────────────── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 12px;
  border-radius: var(--rj-r-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.005em;
  border: 1px solid var(--rj-faint);
  background: transparent;
}
.chip-ink  { background: var(--rj-ink); color: var(--rj-paper); border-color: var(--rj-ink); }
.chip-live { background: var(--rj-accent, #FFD60A); color: #001D3D; border-color: var(--rj-accent, #FFD60A); }
.chip-live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #001D3D; box-shadow: 0 0 0 0 rgba(0,29,61,0.5); animation: pulse 1.6s ease-out infinite; }
.chip-accent { background: var(--rj-accent); color: var(--rj-accent-ink); border-color: var(--rj-accent); }

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,255,255,0.7); }
  100% { box-shadow: 0 0 0 8px rgba(255,255,255,0); }
}

/* ── Header / nav ───────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(245, 241, 233, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rj-faint);
  z-index: 50;
}
.site-header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 72px;
}
.brand-wordmark {
  font-family: var(--font-kr-serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}
.brand-wordmark .en {
  font-family: var(--font-en);
  font-style: italic;
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--rj-muted);
  margin-left: 4px;
}
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--rj-ink);
  color: var(--rj-paper);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: -0.02em;
}
/* Brand logo image — replaces the .brand-mark circle when used */
.brand-logo-mark {
  display: inline-block;
  height: 34px;
  width: auto;
  flex-shrink: 0;
  vertical-align: middle;
  user-select: none;
}
.brand-logo-mark--sm { height: 26px; }
.brand-logo-mark--lg { height: 44px; }
.brand-logo-full {
  display: inline-block;
  height: 38px;
  width: auto;
  flex-shrink: 0;
  user-select: none;
}
.brand-logo-full--lg { height: 56px; }
/* On dark surfaces the natural yellow already pops; on cream surfaces it's a
   warm sibling to the butter accent. No filter needed. */
.main-nav {
  display: flex;
  gap: 28px;
  align-items: center;
}
.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--rj-ink);
  position: relative;
  padding: 8px 0;
  white-space: nowrap;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--rj-ink);
}
.main-nav a:hover { opacity: 0.6; }
.header-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  align-items: center;
}
.icon-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  position: relative;
}
.icon-btn:hover { background: var(--rj-paper-2); }
.icon-btn .badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  background: var(--rj-ink);
  color: var(--rj-paper);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

/* ── Footer ─────────────────────────────────────────────────────── */
.site-footer {
  background: var(--rj-ink);
  color: var(--rj-paper);
  padding: 80px 0 32px;
  margin-top: 120px;
}
.site-footer a:hover { opacity: 0.6; }

/* ── Page transitions ──────────────────────────────────────────── */
.page-enter { animation: pageIn 0.4s ease-out both; }
@keyframes pageIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Scrollbar polish ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.12); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.22); }

/* ── Misc UI primitives ────────────────────────────────────────── */
.cover {
  position: relative;
  background: var(--rj-paper-2);
  overflow: hidden;
  border-radius: var(--rj-r);
}
.cover-grad {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 80% at 20% 20%, rgba(0,0,0,0.0), rgba(0,0,0,0.45) 100%),
    linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.6));
}
.cover-meta {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
}

.ratio-16x9 { aspect-ratio: 16 / 9; }
.ratio-4x5  { aspect-ratio: 4 / 5; }
.ratio-1x1  { aspect-ratio: 1 / 1; }

/* Avatars (initials, no fake photos) */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--rj-paper-2);
  color: var(--rj-ink);
  font-family: var(--font-kr-serif);
  font-weight: 500;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.avatar-sm { width: 32px; height: 32px; font-size: 13px; }
.avatar-md { width: 48px; height: 48px; font-size: 18px; }
.avatar-lg { width: 80px; height: 80px; font-size: 30px; }
.avatar-xl { width: 140px; height: 140px; font-size: 52px; }

/* Course poster — editorial composition, no photo */
.poster {
  position: relative;
  background: var(--rj-paper);
  border: 1px solid var(--rj-line);
  border-radius: var(--rj-r);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  aspect-ratio: 4 / 5;
}
.poster-ink   { background: var(--rj-ink); color: var(--rj-paper); }
.poster-cream { background: var(--rj-paper); color: var(--rj-ink); }
.poster-accent{ background: var(--rj-accent); color: var(--rj-accent-ink); }
.poster-deep  { background: var(--rj-paper-2); color: var(--rj-ink); }

.poster-num {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 140px;
  letter-spacing: -0.05em;
  line-height: 0.85;
  opacity: 0.95;
}
.poster-title {
  font-family: var(--font-kr-serif);
  font-weight: 500;
  font-size: 24px;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

/* Common section header */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}
.section-head h2 {
  margin: 0;
  font-family: var(--font-kr-serif);
  font-weight: 500;
  font-size: 36px;
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.section-head .lead-en {
  font-family: var(--font-en);
  font-style: italic;
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--rj-muted);
  margin-top: 6px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--rj-ink);
  color: var(--rj-paper);
  padding: 12px 22px;
  border-radius: var(--rj-r-pill);
  font-size: 13px;
  font-weight: 500;
  z-index: 100;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  animation: toastIn 0.25s ease-out;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(10,10,10,0.45);
  backdrop-filter: blur(6px);
  z-index: 80;
  display: flex; align-items: center; justify-content: center;
  padding: 40px;
  animation: fadeIn 0.2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--rj-paper);
  border-radius: var(--rj-r);
  max-width: 460px;
  width: 100%;
  padding: 32px;
  position: relative;
  animation: modalIn 0.25s cubic-bezier(.2,.8,.2,1);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Tag for level/subject */
.tag {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 8px;
  border: 1px solid var(--rj-line);
  border-radius: 4px;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Empty grid pattern (for hero illustration placeholders) */
.dot-grid {
  background-image: radial-gradient(rgba(0,0,0,0.2) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* ──────────────────────────────────────────────────────────────────
   ACADEMY MODE — Megastudy / Etoos / Daesung style
   Bold red·navy, Pretendard heavy, instructor billboards,
   acceptance brag bar, ranking lists, D-day countdown.
   Activated via [data-home-style="academy"] on <html>.
   ────────────────────────────────────────────────────────────────── */
:root {
  /* Navy + Yellow brand — no red. Deep navy leads, yellow is the single pop
     accent, warm-white/cream are the surfaces.
     --acad-red is kept as a token name but now resolves to deep navy so every
     legacy "solid accent + white text" use stays high-contrast and on-palette. */
  --acad-red:      #001D3D;   /* repurposed: deep navy solid accent */
  --acad-red-deep: #00132A;   /* darker navy for active/press */
  --acad-navy:     #001D3D;   /* deep navy (hero, footer, dark surfaces) */
  --acad-navy-2:   #003566;   /* mid navy (secondary dark surface) */
  --acad-ink:      #001D3D;   /* body text — deep navy */
  --acad-bg:       #F5F0E0;   /* cream page background */
  --acad-bg-2:     #ECE4CE;   /* deeper cream — surface differentiation */
  --acad-line:     #E4DCC6;   /* warm hairline */
  --acad-muted:    #5C6678;   /* muted navy-gray text */
  --acad-yellow:   #FFD60A;   /* primary yellow — the pop accent */
  --acad-paper:    #FFFBF0;   /* warm white — cards */
}

html[data-home-style="academy"],
html[data-home-style="academy"] body {
  background: var(--acad-bg);
  color: var(--acad-ink);
  letter-spacing: -0.018em;
}
/* Header chrome shifts to white/navy in academy mode */
html[data-home-style="academy"] .site-header {
  background: var(--acad-paper);
  border-bottom: 1px solid var(--acad-line);
  backdrop-filter: none;
}
html[data-home-style="academy"] .brand-wordmark {
  font-family: var(--font-kr);
  font-weight: 800;
  letter-spacing: -0.035em;
  font-size: 21px;
}
html[data-home-style="academy"] .brand-wordmark .en { display: none; }
html[data-home-style="academy"] .brand-mark {
  background: var(--acad-red);
  color: #fff;
  border-radius: 7px;
  font-family: var(--font-kr);
  font-weight: 900;
  font-size: 15px;
  width: 32px; height: 32px;
}
html[data-home-style="academy"] .main-nav a { font-weight: 700; font-size: 15px; white-space: nowrap; }
html[data-home-style="academy"] .main-nav { gap: 26px; }
html[data-home-style="academy"] .main-nav a.active { color: var(--acad-red); }
html[data-home-style="academy"] .main-nav a.active::after {
  background: var(--acad-red);
  width: 6px; height: 6px;
}
html[data-home-style="academy"] .btn-primary {
  background: var(--acad-red); color: #fff;
  border-radius: 6px; font-weight: 800;
}

/* ── Academy hero ── */
.acad-hero {
  background: var(--acad-navy);
  color: #fff;
  overflow: hidden;
  position: relative;
}
.acad-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 80% at 90% 10%, rgba(0,29,61,0.35), transparent 60%),
    radial-gradient(40% 60% at 10% 100%, rgba(255,214,10,0.10), transparent 60%);
  pointer-events: none;
}
.acad-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  padding-top: 72px;
  padding-bottom: 56px;
  align-items: center;
}
.acad-tag-red {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--acad-yellow); color: var(--acad-ink);
  font-weight: 800; font-size: 13px;
  padding: 7px 12px; border-radius: 4px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.acad-tag-red::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--acad-ink); box-shadow: 0 0 0 0 rgba(0,29,61,0.55);
  animation: pulse 1.6s ease-out infinite;
}
.acad-headline {
  font-weight: 900;
  font-size: clamp(48px, 5.6vw, 78px);
  line-height: 1.05;
  letter-spacing: -0.045em;
  margin: 18px 0 0;
}
.acad-headline em {
  font-style: normal;
  color: var(--acad-yellow);
  background: linear-gradient(180deg, transparent 60%, rgba(255,214,10,0.25) 60%);
  padding: 0 2px;
}
.acad-sub {
  font-size: 17px; line-height: 1.6;
  color: rgba(255,255,255,0.78);
  max-width: 520px;
  margin-top: 20px;
  font-weight: 500;
}
.acad-dday {
  display: inline-grid;
  grid-template-columns: auto 1px auto;
  gap: 18px;
  align-items: center;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 10px;
  padding: 12px 18px;
  margin-top: 28px;
}
.acad-dday-label {
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: rgba(255,255,255,0.7); font-weight: 700;
}
.acad-dday-num {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 30px;
  letter-spacing: -0.02em;
  color: var(--acad-yellow);
  white-space: nowrap;
}
.acad-dday-sep { height: 28px; background: rgba(255,255,255,0.2); }

/* Big CTA buttons under hero */
.acad-btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 54px; padding: 0 26px;
  border-radius: 7px;
  font-weight: 800; font-size: 15px;
  letter-spacing: -0.01em;
  transition: opacity 0.15s ease, transform 0.15s ease;
  white-space: nowrap;
}
.acad-btn:active { transform: scale(0.98); }
.acad-btn:hover { opacity: 0.9; }
.acad-btn-red { background: var(--acad-yellow); color: var(--acad-ink); }   /* primary pop = yellow */
.acad-btn-yellow { background: var(--acad-paper); color: var(--acad-ink); } /* secondary = warm white */
.acad-btn-ghost-white { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.55); }
.acad-btn-ghost { background: transparent; color: var(--acad-ink); border: 1.5px solid var(--acad-line); }

/* Acceptance brag bar */
.acad-bragbar {
  background: var(--acad-paper);
  border-top: 4px solid var(--acad-red);
  border-bottom: 1px solid var(--acad-line);
}
.acad-bragbar-inner {
  display: grid;
  grid-template-columns: auto repeat(5, 1fr);
  align-items: center;
  gap: 0;
  padding-top: 28px;
  padding-bottom: 28px;
}
.acad-bragbar-title {
  display: flex; flex-direction: column;
  padding-right: 28px; border-right: 1px solid var(--acad-line);
}
.acad-bragbar-title small {
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--acad-red); font-weight: 800;
}
.acad-bragbar-title strong {
  font-weight: 900; font-size: 22px; margin-top: 4px;
  letter-spacing: -0.035em;
}
.acad-bragbar-cell {
  padding: 0 24px;
  border-right: 1px solid var(--acad-line);
  text-align: center;
}
.acad-bragbar-cell:last-child { border-right: 0; }
.acad-bragbar-num {
  font-family: var(--font-en);
  font-weight: 800; font-size: 36px;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--acad-navy);
}
.acad-bragbar-num sup {
  font-size: 16px; font-weight: 700;
  color: var(--acad-red); margin-left: 2px;
  vertical-align: top;
}
.acad-bragbar-label {
  margin-top: 8px;
  font-size: 13px; color: var(--acad-muted); font-weight: 600;
}

/* Section base */
.acad-section { padding-top: 80px; padding-bottom: 80px; }
.acad-section-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 28px;
  gap: 20px;
}
.acad-section-head h2 {
  margin: 0;
  font-weight: 900;
  font-size: 36px;
  letter-spacing: -0.035em;
  line-height: 1.15;
}
.acad-section-head h2 em {
  font-style: normal; color: var(--acad-red);
}
.acad-section-head .sub {
  margin-top: 8px;
  color: var(--acad-muted);
  font-size: 14px; font-weight: 500;
}

/* Instructor billboards */
.acad-instructors {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.acad-ins-card {
  background: var(--acad-paper);
  border: 1px solid var(--acad-line);
  border-radius: 10px;
  overflow: hidden;
  display: flex; flex-direction: column;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.acad-ins-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(11,30,63,0.10);
}
.acad-ins-face {
  position: relative;
  aspect-ratio: 4 / 5;
  background:
    linear-gradient(180deg, rgba(11,30,63,0.0) 50%, rgba(11,30,63,0.85) 100%),
    var(--acad-navy);
  overflow: hidden;
  color: #fff;
}
.acad-ins-face::before {
  /* placeholder portrait: huge initials, soft glow */
  content: attr(data-initials);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-kr-serif);
  font-weight: 500;
  font-size: 84px;
  color: rgba(255,255,255,0.92);
  letter-spacing: -0.04em;
}
.acad-ins-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--acad-yellow); color: var(--acad-ink);
  font-weight: 900; font-size: 12px;
  padding: 5px 9px; border-radius: 4px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  z-index: 2;
}
.acad-ins-subj {
  position: absolute;
  top: 12px; right: 12px;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(6px);
  color: #fff; font-weight: 700; font-size: 12px;
  padding: 5px 9px; border-radius: 4px;
  white-space: nowrap;
  z-index: 2;
}
.acad-ins-name {
  position: absolute;
  left: 16px; right: 16px; bottom: 14px;
  z-index: 2;
}
.acad-ins-name strong {
  display: block; font-weight: 900; font-size: 28px;
  letter-spacing: -0.035em; line-height: 1;
}
.acad-ins-name span {
  display: block; font-size: 12px; opacity: 0.85; margin-top: 6px;
}
.acad-ins-body {
  padding: 16px 18px 18px;
}
.acad-ins-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--acad-line);
}
.acad-ins-stats div { text-align: center; }
.acad-ins-stats strong {
  display: block;
  font-family: var(--font-en);
  font-weight: 800; font-size: 17px;
  color: var(--acad-navy);
  letter-spacing: -0.02em;
}
.acad-ins-stats small {
  font-size: 11px; color: var(--acad-muted); font-weight: 600;
}
.acad-ins-bio {
  font-size: 13px; color: var(--acad-muted);
  line-height: 1.5; margin: 0;
  min-height: 58px;
}

/* Ranking list */
.acad-rank {
  background: var(--acad-paper);
  border: 1px solid var(--acad-line);
  border-radius: 12px;
  overflow: hidden;
}
.acad-rank-tabs {
  display: flex;
  border-bottom: 1px solid var(--acad-line);
}
.acad-rank-tab {
  flex: 1; padding: 16px 0;
  font-weight: 800; font-size: 14px;
  color: var(--acad-muted);
  background: transparent;
  border: 0; cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.15s ease;
}
.acad-rank-tab.active {
  color: var(--acad-red);
  border-bottom-color: var(--acad-red);
  background: rgba(0,29,61,0.04);
}
.acad-rank-tab:hover:not(.active) {
  background: var(--acad-bg-2);
}
.acad-rank-row {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  align-items: center;
  padding: 18px 20px;
  border-top: 1px solid var(--acad-line);
  gap: 16px;
  text-align: left;
  background: transparent;
  cursor: pointer;
  transition: background 0.15s ease;
  width: 100%;
}
.acad-rank-row:first-of-type { border-top: 0; }
.acad-rank-row:hover { background: var(--acad-bg-2); }
.acad-rank-no {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 30px;
  letter-spacing: -0.04em;
  color: var(--acad-ink);
}
.acad-rank-row.top .acad-rank-no { color: var(--acad-red); }
.acad-rank-title {
  font-weight: 800; font-size: 16px;
  letter-spacing: -0.025em;
  color: var(--acad-ink);
  margin-bottom: 4px;
}
.acad-rank-meta {
  font-size: 12.5px; color: var(--acad-muted);
  display: flex; gap: 10px; align-items: center;
}
.acad-rank-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: 0.6; }
.acad-rank-trend {
  display: inline-flex; align-items: center; gap: 4px;
  font-weight: 800; font-size: 12px;
  padding: 3px 8px; border-radius: 4px;
}
.acad-rank-trend.up { background: rgba(0,29,61,0.10); color: var(--acad-red); }
.acad-rank-trend.flat { background: var(--acad-bg-2); color: var(--acad-muted); }
.acad-rank-trend.new { background: var(--acad-yellow); color: var(--acad-ink); }

/* Course card grid (academy variant) */
.acad-courses {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.acad-course-card {
  background: var(--acad-paper);
  border: 1px solid var(--acad-line);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  display: flex; flex-direction: column;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.acad-course-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(11,30,63,0.10);
}
.acad-course-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--acad-navy);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.acad-course-cover .subj {
  font-weight: 900; font-size: 46px;
  letter-spacing: -0.035em;
  color: rgba(255,255,255,0.95);
}
.acad-course-cover .subj-en {
  position: absolute;
  left: 16px; bottom: 14px;
  font-family: var(--font-en);
  font-weight: 700; font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.acad-course-cover .pill {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--acad-yellow); color: var(--acad-ink);
  font-weight: 800; font-size: 11px;
  padding: 4px 8px; border-radius: 4px;
  letter-spacing: 0.02em;
}
.acad-course-cover .pill.new { background: var(--acad-navy); color: #fff; }
.acad-course-body {
  padding: 16px 18px 18px;
  display: flex; flex-direction: column;
  gap: 10px;
  flex: 1;
}
.acad-course-title {
  font-weight: 800; font-size: 16.5px;
  letter-spacing: -0.025em;
  line-height: 1.3;
  color: var(--acad-ink);
}
.acad-course-ins {
  font-size: 13px; color: var(--acad-muted); font-weight: 600;
}
.acad-course-meta {
  margin-top: auto;
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 12px; border-top: 1px solid var(--acad-line);
}
.acad-price-now {
  font-family: var(--font-en);
  font-weight: 800; font-size: 18px;
  color: var(--acad-red);
  letter-spacing: -0.02em;
}
.acad-price-old {
  font-family: var(--font-en);
  font-size: 12px; color: var(--acad-muted);
  text-decoration: line-through;
}
.acad-rating {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12.5px; color: var(--acad-muted); font-weight: 600;
}
.acad-rating svg { color: #F5A623; }

/* Live timetable */
.acad-timetable {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.acad-tt-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--acad-paper);
  border: 1px solid var(--acad-line);
  border-radius: 10px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.acad-tt-row.live {
  border-color: var(--acad-red);
  background: linear-gradient(90deg, rgba(0,29,61,0.04), transparent 50%);
}
.acad-tt-row:hover { transform: translateX(4px); }
.acad-tt-time {
  font-family: var(--font-en);
  font-weight: 800; font-size: 22px;
  letter-spacing: -0.025em;
  color: var(--acad-ink);
}
.acad-tt-state {
  font-size: 11px; font-weight: 800;
  letter-spacing: 0.06em; text-transform: uppercase;
  margin-top: 4px;
  color: var(--acad-muted);
}
.acad-tt-row.live .acad-tt-state { color: var(--acad-red); }
.acad-tt-title { font-weight: 800; font-size: 15px; letter-spacing: -0.025em; margin-bottom: 4px; }
.acad-tt-meta { font-size: 12.5px; color: var(--acad-muted); }
.acad-tt-cta {
  height: 38px; padding: 0 16px;
  border-radius: 5px; font-weight: 800; font-size: 13px;
  background: var(--acad-navy); color: #fff;
  white-space: nowrap;
}
.acad-tt-row.live .acad-tt-cta { background: var(--acad-yellow); color: var(--acad-ink); }

/* Quote / review cards */
.acad-reviews {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.acad-review {
  background: var(--acad-paper);
  border: 1px solid var(--acad-line);
  border-radius: 10px;
  padding: 22px;
  display: flex; flex-direction: column; gap: 14px;
}
.acad-review .stars { color: #F5A623; display: inline-flex; gap: 2px; }
.acad-review-body {
  font-size: 15px; line-height: 1.55; font-weight: 600;
  color: var(--acad-ink);
}
.acad-review-meta {
  margin-top: auto; padding-top: 14px; border-top: 1px solid var(--acad-line);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12.5px; color: var(--acad-muted);
}
.acad-review-pass {
  background: var(--acad-yellow); color: var(--acad-ink);
  font-weight: 800; font-size: 11px;
  padding: 3px 7px; border-radius: 3px;
  white-space: nowrap;
}

/* Big CTA strip */
.acad-cta {
  background: var(--acad-red);
  color: #fff;
  border-radius: 14px;
  padding: 56px 56px;
  display: grid; grid-template-columns: 1.5fr 1fr;
  gap: 32px; align-items: center;
  overflow: hidden;
  position: relative;
}
.acad-cta::after {
  content: "FREE TRIAL · NO RISK";
  position: absolute;
  right: -40px; top: 16px;
  font-family: var(--font-en);
  font-weight: 900; font-size: 11px;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.15);
  transform: rotate(0deg);
  white-space: nowrap;
}
.acad-cta h2 {
  margin: 0;
  font-weight: 900; font-size: 46px;
  letter-spacing: -0.04em; line-height: 1.05;
}
.acad-cta p { margin: 16px 0 0; font-size: 16px; font-weight: 500; opacity: 0.9; max-width: 480px; }

/* ──────────────────────────────────────────────────────────────────
   LIVE CLASSROOM — in-site live class shell
   Works in both editorial and academy modes. Uses academy palette
   when active for consistency.
   ────────────────────────────────────────────────────────────────── */
.liveroom {
  position: fixed;
  inset: 72px 0 0 0; /* below site header */
  background: #0B1117;
  color: #fff;
  display: flex;
  flex-direction: column;
  font-family: var(--font-kr);
  z-index: 30;
}
/* Top status bar */
.lr-top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: #0F1722;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}
.lr-top-title {
  display: flex; align-items: center; gap: 12px;
  min-width: 0; flex: 1;
}
.lr-live-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--acad-red); color: #fff;
  font-weight: 800; font-size: 12px;
  padding: 5px 10px; border-radius: 4px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.lr-live-pill::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 0 rgba(255,255,255,0.7);
  animation: pulse 1.4s ease-out infinite;
}
.lr-title { font-weight: 800; font-size: 16px; letter-spacing: -0.025em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lr-sub { font-size: 12.5px; color: rgba(255,255,255,0.55); margin-left: 12px; white-space: nowrap; }
.lr-top-meta {
  display: flex; gap: 18px; align-items: center; font-size: 13px;
  color: rgba(255,255,255,0.75);
}
.lr-top-meta b { color: #fff; font-family: var(--font-en); font-weight: 700; letter-spacing: -0.01em; }
.lr-leave {
  background: rgba(255,255,255,0.08);
  color: #fff; border: 1px solid rgba(255,255,255,0.15);
  font-weight: 700; font-size: 13px;
  height: 36px; padding: 0 14px;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  white-space: nowrap;
}
.lr-leave:hover { background: rgba(0,29,61,0.85); border-color: var(--acad-red); }

/* Main area */
.lr-main {
  flex: 1;
  display: grid;
  min-height: 0; /* allow children to scroll */
}
.lr-main[data-layout="split"]   { grid-template-columns: 1fr 360px; }
.lr-main[data-layout="stacked"] { grid-template-rows: 1fr 320px; grid-template-columns: 1fr; }

/* Stage = whiteboard + cam */
.lr-stage {
  position: relative;
  background: #0a0d12;
  overflow: hidden;
  display: flex; flex-direction: column;
  min-height: 0;
}
.lr-stage-inner {
  flex: 1;
  position: relative;
  margin: 14px;
  background: #FAFAF7;
  color: var(--acad-ink);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}
/* Whiteboard grid pattern */
.lr-board {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11,30,63,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11,30,63,0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
}
.lr-board-title {
  position: absolute;
  top: 24px; left: 28px; right: 28px;
  display: flex; align-items: baseline; gap: 14px;
  font-weight: 800; font-size: 15px;
  letter-spacing: -0.02em;
  color: var(--acad-navy);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--acad-navy);
}
.lr-board-title em {
  font-style: normal; color: var(--acad-red); font-weight: 800;
}
.lr-board-title small {
  margin-left: auto;
  font-weight: 600; font-size: 12px; color: var(--acad-muted);
  letter-spacing: 0.04em;
}
.lr-board-content {
  position: absolute;
  top: 84px; left: 28px; right: 28px; bottom: 28px;
  display: flex; flex-direction: column;
  gap: 18px;
  overflow: hidden;
}
.lr-eq {
  font-family: "Iowan Old Style", "Times New Roman", Georgia, serif;
  font-size: 30px;
  color: var(--acad-ink);
  letter-spacing: -0.005em;
}
.lr-eq em { font-style: italic; }
.lr-eq .red { color: var(--acad-red); font-weight: 700; }
.lr-eq .blue { color: var(--acad-navy); font-weight: 700; }
.lr-eq .marker { background: linear-gradient(transparent 55%, rgba(255,214,10,0.55) 55%); padding: 0 2px; }
.lr-arrow {
  display: inline-flex; align-items: center;
  color: var(--acad-red);
  font-weight: 800; font-size: 14px;
  letter-spacing: 0;
  margin-left: 8px;
}
.lr-note {
  font-family: var(--font-kr);
  color: var(--acad-red);
  font-size: 15px; font-weight: 700;
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 6px;
}
.lr-note::before { content: "※"; font-size: 14px; }
.lr-tag {
  display: inline-block;
  background: var(--acad-navy);
  color: #fff;
  font-weight: 800; font-size: 11px;
  padding: 4px 8px; border-radius: 3px;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

/* Cam PIP */
.lr-cam {
  position: absolute;
  right: 28px; top: 100px;
  width: 220px; height: 140px;
  background: linear-gradient(180deg, #1B3675, #0B1E3F);
  border-radius: 8px;
  border: 2px solid #fff;
  box-shadow: 0 12px 30px rgba(0,0,0,0.35);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  overflow: hidden;
  color: #fff;
}
.lr-cam-face {
  font-family: var(--font-kr-serif);
  font-weight: 500;
  font-size: 56px;
  letter-spacing: -0.04em;
  line-height: 1;
}
.lr-cam-label {
  position: absolute;
  bottom: 8px; left: 8px;
  background: rgba(0,0,0,0.55);
  padding: 3px 7px; border-radius: 3px;
  font-size: 11px; font-weight: 700;
  display: inline-flex; align-items: center; gap: 5px;
}
.lr-cam-label::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%; background: #2ECC71;
  box-shadow: 0 0 6px #2ECC71;
}
.lr-cam-mic {
  position: absolute;
  top: 8px; right: 8px;
  background: var(--acad-red);
  border-radius: 4px;
  padding: 3px;
  display: inline-flex;
}

/* Bottom tool dock */
.lr-dock {
  background: #0F1722;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 12px 20px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  flex-shrink: 0;
}
.lr-tool {
  display: inline-flex; flex-direction: column; align-items: center;
  gap: 4px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  min-width: 72px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.lr-tool:hover { background: rgba(255,255,255,0.12); }
.lr-tool.active {
  background: var(--acad-red);
  border-color: var(--acad-red);
}
.lr-tool.off {
  background: rgba(0,29,61,0.18);
  border-color: rgba(0,29,61,0.45);
  color: #FFB3B5;
}
.lr-tool-sep { width: 1px; height: 32px; background: rgba(255,255,255,0.1); margin: 0 4px; }

/* Side panel (chat / qa / students) */
.lr-side {
  background: #0F1722;
  border-left: 1px solid rgba(255,255,255,0.08);
  display: flex; flex-direction: column;
  min-height: 0;
}
.lr-main[data-layout="stacked"] .lr-side {
  border-left: 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.lr-tabs {
  display: flex;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}
.lr-tab {
  flex: 1;
  padding: 14px 0;
  background: transparent;
  color: rgba(255,255,255,0.55);
  font-weight: 700; font-size: 13px;
  border: 0;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}
.lr-tab.active { color: #fff; border-bottom-color: var(--acad-red); }
.lr-tab:hover:not(.active) { color: rgba(255,255,255,0.85); }
.lr-tab-count {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.8);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 9px;
  margin-left: 6px;
}
.lr-tab.active .lr-tab-count { background: var(--acad-red); color: #fff; }

.lr-panel { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.lr-stacked-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 100%;
  min-height: 0;
}
.lr-stacked-panels > div {
  display: flex; flex-direction: column;
  min-height: 0;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.lr-stacked-panels > div:last-child { border-right: 0; }

/* Chat */
.lr-chat-list {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 10px;
  scroll-behavior: smooth;
}
.lr-chat-msg {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 13.5px;
}
.lr-chat-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 11px;
  flex-shrink: 0;
}
.lr-chat-msg.instructor .lr-chat-avatar { background: var(--acad-red); }
.lr-chat-msg.me .lr-chat-avatar { background: var(--acad-yellow); color: var(--acad-ink); }
.lr-chat-body { min-width: 0; flex: 1; }
.lr-chat-name {
  display: flex; gap: 6px; align-items: baseline;
  font-size: 12px;
  margin-bottom: 2px;
}
.lr-chat-name strong { color: #fff; font-weight: 700; font-size: 12.5px; }
.lr-chat-msg.instructor .lr-chat-name strong { color: #FFB3B5; }
.lr-chat-name span { color: rgba(255,255,255,0.4); font-family: var(--font-en); font-size: 11px; }
.lr-chat-text {
  color: rgba(255,255,255,0.92);
  line-height: 1.4;
  word-wrap: break-word;
}
.lr-chat-input-bar {
  padding: 10px 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; gap: 8px;
  background: #0F1722;
  flex-shrink: 0;
}
.lr-chat-input {
  flex: 1;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  font-size: 13px;
  border-radius: 6px;
  padding: 9px 12px;
  outline: none;
}
.lr-chat-input::placeholder { color: rgba(255,255,255,0.4); }
.lr-chat-input:focus { border-color: var(--acad-red); }
.lr-chat-send {
  background: var(--acad-red);
  color: #fff;
  border: 0;
  font-weight: 800; font-size: 12px;
  padding: 0 14px; border-radius: 6px;
  cursor: pointer;
}

/* Q&A */
.lr-qa-list {
  flex: 1; overflow-y: auto;
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 10px;
}
.lr-q {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 12px 14px;
  display: flex; gap: 12px;
}
.lr-q.answered {
  background: rgba(46, 204, 113, 0.06);
  border-color: rgba(46, 204, 113, 0.25);
}
.lr-q-vote {
  display: flex; flex-direction: column; align-items: center;
  flex-shrink: 0;
  padding-top: 2px;
}
.lr-q-vote button {
  background: transparent;
  border: 0; color: rgba(255,255,255,0.5);
  cursor: pointer; padding: 2px; line-height: 1;
}
.lr-q-vote button:hover, .lr-q-vote.voted button { color: var(--acad-red); }
.lr-q-vote-num {
  font-family: var(--font-en); font-weight: 800;
  font-size: 14px;
  color: #fff;
  line-height: 1.2;
}
.lr-q-vote.voted .lr-q-vote-num { color: var(--acad-red); }
.lr-q-body { min-width: 0; flex: 1; }
.lr-q-meta {
  display: flex; gap: 8px; align-items: center;
  font-size: 11px;
  margin-bottom: 4px;
  color: rgba(255,255,255,0.5);
}
.lr-q-meta strong { color: #fff; font-weight: 700; font-size: 12px; }
.lr-q.answered .lr-q-meta::after {
  content: "답변 완료";
  background: rgba(46, 204, 113, 0.18);
  color: #6EE7A8;
  font-size: 10px; font-weight: 800;
  padding: 2px 6px; border-radius: 3px;
  letter-spacing: 0.04em;
  margin-left: auto;
}
.lr-q-text { font-size: 13.5px; color: rgba(255,255,255,0.92); line-height: 1.4; }
.lr-q-ask {
  padding: 10px 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
  background: #0F1722;
  flex-shrink: 0;
}
.lr-q-ask button {
  width: 100%;
  background: rgba(255,214,10,0.15);
  border: 1px solid rgba(255,214,10,0.35);
  color: var(--acad-yellow);
  font-weight: 800; font-size: 13px;
  padding: 11px;
  border-radius: 6px;
  cursor: pointer;
}
.lr-q-ask button:hover { background: rgba(255,214,10,0.22); }

/* Students roster */
.lr-students {
  flex: 1; overflow-y: auto;
  padding: 12px 14px;
}
.lr-students-head {
  font-size: 11px; font-weight: 800;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  padding: 8px 4px 6px;
}
.lr-student {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 8px;
  border-radius: 6px;
  font-size: 13px;
}
.lr-student:hover { background: rgba(255,255,255,0.04); }
.lr-student .av {
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 11px;
  flex-shrink: 0;
  position: relative;
}
.lr-student.me .av { background: var(--acad-yellow); color: var(--acad-ink); }
.lr-student .av.cam-on::after {
  content: ""; position: absolute;
  inset: -2px;
  border: 2px solid #2ECC71;
  border-radius: 50%;
}
.lr-student .name { flex: 1; color: #fff; font-weight: 600; min-width: 0; white-space: nowrap; text-overflow: ellipsis; overflow: hidden; }
.lr-student .name small { color: rgba(255,255,255,0.5); font-weight: 500; margin-left: 4px; }
.lr-student .icons { display: inline-flex; gap: 6px; color: rgba(255,255,255,0.4); }
.lr-student .raised { color: var(--acad-yellow); }
.lr-student .raised svg { animation: wave 1s ease-in-out infinite; transform-origin: bottom center; }
/* On the dark live-classroom surfaces, deep-navy accents disappear — promote
   the accent to yellow so live status, active tools and sends stay legible. */
.lr-live-pill { background: var(--acad-yellow); color: var(--acad-ink); }
.lr-live-pill::before { background: var(--acad-ink); box-shadow: 0 0 0 0 rgba(0,29,61,0.55); }
.lr-leave:hover { background: rgba(255,214,10,0.9); border-color: var(--acad-yellow); color: var(--acad-ink); }
.lr-tool.active { background: var(--acad-yellow); border-color: var(--acad-yellow); color: var(--acad-ink); }
.lr-tab.active { border-bottom-color: var(--acad-yellow); }
.lr-tab.active .lr-tab-count { background: var(--acad-yellow); color: var(--acad-ink); }
.lr-chat-send { background: var(--acad-yellow); color: var(--acad-ink); }
.lr-chat-input:focus { border-color: var(--acad-yellow); }
.lr-chat-msg.instructor .lr-chat-avatar { background: var(--acad-yellow); color: var(--acad-ink); }
.lr-chat-msg.instructor .lr-chat-name strong { color: var(--acad-yellow); }
.lr-cam-mic { background: var(--acad-yellow); color: var(--acad-ink); }
.lr-q-vote button:hover, .lr-q-vote.voted button, .lr-q-vote.voted .lr-q-vote-num { color: var(--acad-yellow); }

@keyframes wave {
  0%, 100% { transform: rotate(-10deg); }
  50% { transform: rotate(15deg); }
}

/* ──────────────────────────────────────────────────────────────────
   ACADEMY MODE — global page overlays
   Re-skins shared components (.card .btn .input .chip .poster .tag etc)
   so every page (courses, detail, live, instructors, community, auth,
   mypage, checkout) inherits the academy look without rewrites.
   ────────────────────────────────────────────────────────────────── */
html[data-home-style="academy"] body {
  font-family: var(--font-kr);
}

/* Buttons */
html[data-home-style="academy"] .btn {
  border-radius: 6px;
  font-weight: 800;
}
html[data-home-style="academy"] .btn-primary { background: var(--acad-red); color: #fff; }
html[data-home-style="academy"] .btn-accent  { background: var(--acad-yellow); color: var(--acad-ink); }
html[data-home-style="academy"] .btn-ghost   { background: var(--acad-paper); color: var(--acad-ink); border: 1.5px solid var(--acad-line); }
html[data-home-style="academy"] .btn-soft    { background: var(--acad-bg-2); color: var(--acad-ink); }
html[data-home-style="academy"] .btn-link    { color: var(--acad-red); font-weight: 700; }
html[data-home-style="academy"] .btn-circle  { background: var(--acad-red); color: #fff; border-radius: 50%; }

/* Cards */
html[data-home-style="academy"] .card {
  background: var(--acad-paper);
  border: 1px solid var(--acad-line);
  border-radius: 10px;
}
html[data-home-style="academy"] .card-ink {
  background: var(--acad-navy);
  color: #fff;
  border-radius: 10px;
}
html[data-home-style="academy"] .card-soft {
  background: var(--acad-bg-2);
  border-radius: 10px;
}
html[data-home-style="academy"] .card-accent {
  background: var(--acad-yellow);
  color: var(--acad-ink);
  border-radius: 10px;
}

/* Inputs */
html[data-home-style="academy"] .input {
  border: 1.5px solid var(--acad-line);
  border-radius: 6px;
  background: var(--acad-paper);
  font-weight: 500;
}
html[data-home-style="academy"] .input:focus { box-shadow: inset 0 0 0 1.5px var(--acad-navy); border-color: var(--acad-navy); }
html[data-home-style="academy"] .field > label {
  font-family: var(--font-kr);
  letter-spacing: 0;
  text-transform: none;
  font-weight: 700;
  font-size: 13px;
  color: var(--acad-ink);
}

/* Chips & tags */
html[data-home-style="academy"] .chip {
  border-radius: 6px;
  font-weight: 700;
  border-color: var(--acad-line);
  height: 32px;
  padding: 0 12px;
  background: var(--acad-paper);
}
html[data-home-style="academy"] .chip-ink {
  background: var(--acad-navy);
  color: #fff;
  border-color: var(--acad-navy);
}
html[data-home-style="academy"] .chip-accent {
  background: var(--acad-red);
  color: #fff;
  border-color: var(--acad-red);
}
html[data-home-style="academy"] .tag {
  border-color: var(--acad-line);
  font-family: var(--font-kr);
  letter-spacing: 0;
  text-transform: none;
  font-weight: 800;
  font-size: 11px;
  color: var(--acad-navy);
  background: var(--acad-paper);
  border-radius: 4px;
}

/* Typography — eyebrows, section heads, headlines */
html[data-home-style="academy"] .eyebrow {
  font-family: var(--font-kr);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--acad-red) !important;
  gap: 8px;
}
html[data-home-style="academy"] .eyebrow::before {
  background: var(--acad-red);
  width: 14px;
  opacity: 1;
}
html[data-home-style="academy"] .label-cap {
  font-family: var(--font-kr);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 700;
  font-size: 12px;
  color: var(--acad-muted) !important;
}
html[data-home-style="academy"] .num-en {
  font-family: var(--font-en);
  font-weight: 800;
  letter-spacing: -0.025em;
}
html[data-home-style="academy"] .display,
html[data-home-style="academy"] .section-head h2 {
  font-family: var(--font-kr);
  font-weight: 900;
  letter-spacing: -0.04em;
}
html[data-home-style="academy"] .section-head .lead-en {
  font-family: var(--font-kr);
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--acad-muted);
  font-size: 14px;
  text-transform: none;
}
/* Drop italic-en run-ins inside headings */
html[data-home-style="academy"] h1 span[style*="italic"],
html[data-home-style="academy"] h2 span[style*="italic"],
html[data-home-style="academy"] h3 span[style*="italic"] {
  font-family: var(--font-kr) !important;
  font-style: normal !important;
  font-weight: 800 !important;
  color: var(--acad-red);
}

/* All H1/H2/H3 in academy mode pick up Pretendard Black */
html[data-home-style="academy"] h1,
html[data-home-style="academy"] h2,
html[data-home-style="academy"] h3 {
  font-family: var(--font-kr) !important;
  font-weight: 900 !important;
  letter-spacing: -0.035em !important;
}

/* CoursePoster — re-skin to bold academy card */
html[data-home-style="academy"] .poster {
  border-radius: 10px;
  border-color: var(--acad-line);
  background: var(--acad-navy);
  color: #fff;
  padding: 20px;
}
html[data-home-style="academy"] .poster-cream { background: var(--acad-paper); color: var(--acad-ink); border: 1px solid var(--acad-line); }
html[data-home-style="academy"] .poster-ink   { background: var(--acad-navy); color: #fff; border: 0; }
html[data-home-style="academy"] .poster-accent{ background: var(--acad-red); color: #fff; border: 0; }
html[data-home-style="academy"] .poster-deep  { background: var(--acad-navy-2); color: #fff; border: 0; }
html[data-home-style="academy"] .poster-num {
  font-family: var(--font-en);
  font-weight: 900;
  font-size: 120px;
  letter-spacing: -0.05em;
  line-height: 0.85;
}
html[data-home-style="academy"] .poster-title {
  font-family: var(--font-kr);
  font-weight: 900;
  font-size: 21px;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

/* Hairlines */
html[data-home-style="academy"] .hairline { background: var(--acad-line); }
html[data-home-style="academy"] .hairline-soft { background: var(--acad-line); }

/* Modal backdrop in academy */
html[data-home-style="academy"] .modal {
  background: var(--acad-paper);
  border-radius: 10px;
}

/* Avatars */
html[data-home-style="academy"] .avatar {
  background: var(--acad-bg-2);
  color: var(--acad-ink);
  font-family: var(--font-kr);
  font-weight: 800;
}

/* Tabs — underline becomes red */
html[data-home-style="academy"] button[style*="border-bottom: 2px solid"] {
  border-bottom-color: var(--acad-red) !important;
}

/* Page-level surfaces: cream → academy bg */
html[data-home-style="academy"] section[style*="background: var(--rj-paper)"],
html[data-home-style="academy"] section[style*="background:var(--rj-paper)"] {
  background: var(--acad-paper) !important;
}

/* Sticky filter bars on /courses */
html[data-home-style="academy"] section[style*="position: sticky"] {
  background: var(--acad-paper) !important;
  border-bottom-color: var(--acad-line) !important;
}

/* Dark-hero sections (course detail, login, live, instructors) — re-skin ink to navy */
html[data-home-style="academy"] section[style*="background: var(--rj-ink)"] {
  background: var(--acad-navy) !important;
}
html[data-home-style="academy"] div[style*="background: var(--rj-ink)"]:not(.brand-mark) {
  background: var(--acad-navy) !important;
}

/* Footer stays dark navy */
html[data-home-style="academy"] .site-footer {
  background: var(--acad-navy);
  margin-top: 100px;
}
html[data-home-style="academy"] .site-footer .brand-mark {
  background: var(--acad-red);
  color: #fff;
  border-radius: 7px;
}

/* Progress bars (mypage) — ink fill → red */
html[data-home-style="academy"] div[style*="background: var(--rj-ink)"][style*="width:"] {
  background: var(--acad-red) !important;
}
/* Tab underline pills inside mypage / detail that use rj-ink as bg for "active" state */
html[data-home-style="academy"] button[style*="background: var(--rj-ink)"] {
  background: var(--acad-navy) !important;
  color: #fff !important;
}

/* Toast */
html[data-home-style="academy"] .toast {
  background: var(--acad-navy);
  border-radius: 6px;
  font-weight: 700;
}

/* Section heads — restyle */
html[data-home-style="academy"] .section-head h2 em,
html[data-home-style="academy"] h2 em {
  color: var(--acad-red);
  font-style: normal;
}

/* Make all italic Plus Jakarta accents readable as Korean sans in academy */
html[data-home-style="academy"] span[style*="font-en"],
html[data-home-style="academy"] div[style*="font-en"] {
  font-style: normal;
}

/* When `.dot-grid` is used as an image placeholder background, give it a brighter look */
html[data-home-style="academy"] .dot-grid {
  background-image: radial-gradient(rgba(255,255,255,0.16) 1px, transparent 1px);
}

/* Accent shadow on hover for academy cards */
html[data-home-style="academy"] .card:hover,
html[data-home-style="academy"] .poster:hover {
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}