/* ═══════════════════════════════════════════════════════════════
   GPM Education — 9231 Further Pure Mathematics P2
   Shared Stylesheet  |  p2-style.css
   Accent Colour: Emerald Green  (distinct from P1 Steel Blue)
   ═══════════════════════════════════════════════════════════════ */

/* ── DESIGN TOKENS ── */
:root {
  /* Background layers — identical to P1 */
  --c9: #1a1c22;
  --c8: #22252e;
  --c7: #2c303c;
  --c6: #363b4a;
  --c5: #454c60;

  /* P2 accent — Emerald Green */
  --s5: #2e7d5a;
  --s4: #3d9e6e;
  --s3: #5fbf90;
  --s2: #93d6b8;
  --sg:  rgba(61,158,110,0.15);
  --sg2: rgba(61,158,110,0.30);

  /* Shared brand gold */
  --gold:     #c9a84c;
  --gold-dim: rgba(201,168,76,0.08);

  /* Text */
  --wh: #f0f4f8;
  --ws: #d8e4ed;
  --mu: #8a9bb0;

  /* Status */
  --ok:  #4caf7d;
  --bad: #e05a6a;

  /* Fonts */
  --fd: 'Playfair Display', Georgia, serif;
  --fb: 'Crimson Pro', Georgia, serif;
  --fm: 'JetBrains Mono', 'Courier New', monospace;
}

/* ── RESET & BASE ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--c9);
  color: var(--wh);
  font-family: var(--fb);
  font-size: 18px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── SCROLL PROGRESS BAR ── */
.progress-bar {
  height: 3px;
  background: var(--c6);
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--s4), var(--s3));
  transition: width 0.3s;
  width: 0%;
}

/* ── SITE HEADER ── */
.site-header {
  background: var(--c9);
  border-bottom: 1px solid var(--c7);
  padding: 14px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-logo {
  font-family: var(--fd);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--wh);
  text-decoration: none;
}
.site-logo span { color: var(--s4); }
.site-course {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--mu);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, var(--c8) 0%, var(--c7) 50%, #1a2220 100%);
  border-bottom: 1px solid var(--c6);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 70% 50%, var(--sg) 0%, transparent 70%);
  pointer-events: none;
}
.hero-bg {
  position: absolute;
  top: 0; right: 0;
  width: 50%; height: 100%;
  opacity: 0.15;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  margin: 0 auto;
  padding: 56px 48px 52px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.breadcrumb {
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--s4);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb span { color: var(--mu); }
.hero h1 {
  font-family: var(--fd);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--wh);
  margin-bottom: 12px;
}
.hero h1 em { font-style: italic; color: var(--s3); }
.hero-sub {
  font-family: var(--fb);
  font-size: 1.1rem;
  color: var(--ws);
  font-weight: 300;
  font-style: italic;
  margin-bottom: 28px;
  max-width: 520px;
}
.hero-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 20px;
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 0.06em;
  border: 1px solid;
}
.pill-green { border-color: var(--s5); color: var(--s3); background: var(--sg); }
.pill-gold  { border-color: var(--gold); color: var(--gold); background: var(--gold-dim); }

/* ── LESSON BADGE ── */
.lesson-badge {
  background: var(--c7);
  border: 1px solid var(--c6);
  border-radius: 12px;
  padding: 20px 28px;
  text-align: center;
  min-width: 120px;
}
.lesson-badge .num {
  font-family: var(--fd);
  font-size: 3rem;
  font-weight: 900;
  color: var(--s4);
  line-height: 1;
  display: block;
}
.lesson-badge .lbl {
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--mu);
  text-transform: uppercase;
  margin-top: 4px;
  display: block;
}

/* ── TAB NAVIGATION ── */
.tab-nav {
  background: var(--c8);
  border-bottom: 1px solid var(--c6);
  position: sticky;
  top: 0;
  z-index: 100;
}
.tab-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
}
.tab-btn {
  padding: 16px 22px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--mu);
  font-family: var(--fm);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.tab-btn:hover { color: var(--s3); }
.tab-btn.active { color: var(--s3); border-bottom-color: var(--s4); }

/* ── MAIN CONTENT AREA ── */
.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px 80px;
}
.section { display: none; padding-top: 48px; }
.section.active { display: block; }

/* ── TYPOGRAPHY ── */
h2 {
  font-family: var(--fd);
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--wh);
  margin-bottom: 8px;
  margin-top: 48px;
}
h2:first-child { margin-top: 0; }
h2 .accent { color: var(--s3); }
h3 {
  font-family: var(--fd);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ws);
  margin-top: 36px;
  margin-bottom: 12px;
}
h4 {
  font-family: var(--fd);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ws);
  margin-top: 20px;
  margin-bottom: 8px;
}
p { margin-bottom: 16px; color: var(--ws); font-size: 1.05rem; }
strong { color: var(--wh); font-weight: 600; }
em { color: var(--s2); }
code {
  font-family: var(--fm);
  font-size: 0.9em;
  background: var(--c7);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--s3);
}
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--c6), transparent);
  margin: 40px 0;
}

/* ── CALLOUT BOXES ── */
.box { border-radius: 10px; padding: 24px 28px; margin: 24px 0; }
.box-green {
  background: linear-gradient(135deg, rgba(61,158,110,0.12), rgba(61,158,110,0.05));
  border: 1px solid rgba(61,158,110,0.35);
  border-left: 4px solid var(--s4);
}
.box-gold {
  background: linear-gradient(135deg, rgba(201,168,76,0.10), rgba(201,168,76,0.04));
  border: 1px solid rgba(201,168,76,0.30);
  border-left: 4px solid var(--gold);
}
.box-red {
  background: linear-gradient(135deg, rgba(224,90,106,0.10), rgba(224,90,106,0.04));
  border: 1px solid rgba(224,90,106,0.30);
  border-left: 4px solid var(--bad);
}
.box-ok {
  background: linear-gradient(135deg, rgba(76,175,125,0.10), rgba(76,175,125,0.04));
  border: 1px solid rgba(76,175,125,0.30);
  border-left: 4px solid var(--ok);
}
.box-title {
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.box-green .box-title { color: var(--s3); }
.box-gold  .box-title { color: var(--gold); }
.box-red   .box-title { color: var(--bad); }
.box-ok    .box-title { color: var(--ok); }

/* ── EQUATION BLOCKS ── */
.eq-block {
  background: var(--c7);
  border: 1px solid var(--c5);
  border-radius: 8px;
  padding: 20px 28px;
  margin: 20px 0;
  font-family: var(--fm);
  font-size: 1rem;
  color: var(--wh);
  position: relative;
  overflow: hidden;
}
.eq-block::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--s4), var(--s5));
}
.eq-block .eq-label {
  font-size: 10px;
  color: var(--mu);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
.eq-block .eq-main {
  font-size: 1.15rem;
  color: var(--wh);
  display: block;
  margin-bottom: 6px;
}
.eq-block .eq-note {
  font-size: 0.85rem;
  color: var(--mu);
  font-style: italic;
  display: block;
  margin-top: 8px;
}

/* ── TWO / THREE COL GRIDS ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 24px 0;
}
.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 24px 0;
}

/* ── WORKED EXAMPLE BLOCK ── */
.example {
  background: var(--c8);
  border: 1px solid var(--c6);
  border-radius: 10px;
  margin: 28px 0;
  overflow: hidden;
}
.example-header {
  background: linear-gradient(90deg, rgba(61,158,110,0.12), transparent);
  border-bottom: 1px solid var(--c6);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.example-num {
  width: 28px; height: 28px;
  background: var(--s5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--fm);
  font-size: 12px;
  color: var(--wh);
  flex-shrink: 0;
  font-weight: 600;
}
.example-title {
  font-family: var(--fm);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--s3);
}
.example-body { padding: 24px; }
.example-question {
  font-family: var(--fb);
  font-size: 1.05rem;
  color: var(--ws);
  margin-bottom: 20px;
  padding: 16px 20px;
  background: var(--c7);
  border-radius: 8px;
  border-left: 3px solid var(--gold);
}
.example-solution { color: var(--ws); font-size: 1rem; }
.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.step:last-child { border-bottom: none; }
.step-num {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--mu);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-top: 3px;
  min-width: 56px;
}
.step-content { color: var(--ws); font-size: 1rem; }
.step-content .highlight { color: var(--s3); font-family: var(--fm); }
.step-content .result {
  display: inline-block;
  background: var(--c7);
  border: 1px solid var(--s5);
  border-radius: 5px;
  padding: 4px 12px;
  font-family: var(--fm);
  color: var(--s3);
  margin-top: 6px;
}

/* ── PRACTICE QUESTION BLOCK ── */
.q-block {
  background: var(--c7);
  border: 1px solid var(--c6);
  border-radius: 8px;
  padding: 20px 24px;
  margin: 20px 0;
}
.q-num {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--s4);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.q-text { color: var(--ws); font-size: 1.02rem; margin-bottom: 12px; }
.q-marks {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--gold);
  background: var(--gold-dim);
  border: 1px solid var(--gold);
  padding: 2px 8px;
  border-radius: 3px;
}
.q-hint-btn,
.q-sol-btn {
  background: var(--c8);
  border: 1px solid var(--c6);
  color: var(--mu);
  padding: 6px 14px;
  border-radius: 5px;
  font-family: var(--fm);
  font-size: 11px;
  cursor: pointer;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: all 0.2s;
  margin-left: 8px;
}
.q-hint-btn:hover,
.q-sol-btn:hover { background: var(--sg); color: var(--s3); }
.q-hint {
  display: none;
  background: var(--c7);
  border-left: 3px solid var(--s4);
  padding: 12px 16px;
  margin-top: 12px;
  border-radius: 0 6px 6px 0;
  font-size: 0.95rem;
  color: var(--mu);
  font-style: italic;
}
.q-hint.show { display: block; }
.q-solution { display: none; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--c6); }
.q-solution.show { display: block; }
.sol-label {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--ok);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* ── KEY POINTS LIST ── */
.key-points { list-style: none; margin: 16px 0; }
.key-points li {
  padding: 10px 0 10px 28px;
  position: relative;
  color: var(--ws);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 1.02rem;
}
.key-points li:last-child { border-bottom: none; }
.key-points li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--s4);
  font-family: var(--fm);
}

/* ── FORMULA SHEET GRID ── */
.formula-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.formula-card {
  background: var(--c7);
  border: 1px solid var(--c6);
  border-radius: 8px;
  padding: 16px 20px;
}
.formula-card .fc-title {
  font-family: var(--fm);
  font-size: 11px;
  color: var(--s4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c6);
}
.formula-card .fc-eq {
  font-family: var(--fm);
  font-size: 0.92rem;
  color: var(--wh);
  padding: 5px 0;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.formula-card .fc-eq:last-child { border-bottom: none; }
.formula-card .fc-note { color: var(--mu); font-size: 0.82rem; }

/* ── SIMULATOR / INTERACTIVE ── */
.sim-wrap {
  background: var(--c8);
  border: 1px solid var(--c6);
  border-radius: 12px;
  overflow: hidden;
  margin: 32px 0;
}
.sim-header {
  background: linear-gradient(90deg, rgba(61,158,110,0.15), transparent);
  border-bottom: 1px solid var(--c6);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.sim-title {
  font-family: var(--fm);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--s3);
}
.sim-body { padding: 24px; }
.sim-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.ctrl-group label {
  display: block;
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mu);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.ctrl-group .val-display {
  font-family: var(--fm);
  font-size: 1rem;
  color: var(--s3);
  margin-bottom: 6px;
  display: block;
}
.ctrl-group input[type=range] { width: 100%; accent-color: var(--s4); cursor: pointer; }
.ctrl-group input[type=number],
.ctrl-group input[type=text],
.ctrl-group select {
  width: 100%;
  background: var(--c7);
  border: 1px solid var(--c6);
  color: var(--wh);
  font-family: var(--fm);
  font-size: 0.95rem;
  padding: 8px 12px;
  border-radius: 5px;
  outline: none;
  transition: border-color 0.2s;
}
.ctrl-group input[type=number]:focus,
.ctrl-group input[type=text]:focus,
.ctrl-group select:focus { border-color: var(--s4); }
.canvas-wrap { background: var(--c9); border-radius: 8px; overflow: hidden; }
.canvas-wrap canvas { display: block; width: 100%; }
.readout-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.readout-card {
  background: var(--c7);
  border: 1px solid var(--c6);
  border-radius: 8px;
  padding: 12px 14px;
  text-align: center;
}
.readout-card .r-val {
  font-family: var(--fm);
  font-size: 1.1rem;
  color: var(--s3);
  display: block;
  font-weight: 600;
}
.readout-card .r-lbl {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--mu);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
  display: block;
}

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--s5);
  color: var(--wh);
  border: none;
  border-radius: 6px;
  padding: 10px 24px;
  font-family: var(--fm);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary:hover { background: var(--s4); transform: translateY(-1px); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  color: var(--s3);
  border: 1px solid var(--s5);
  border-radius: 6px;
  padding: 10px 24px;
  font-family: var(--fm);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
  margin-left: 8px;
}
.btn-secondary:hover { background: var(--sg); }

/* ── INLINE TAG / BADGE ── */
.tag {
  display: inline-block;
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 3px;
  margin-right: 6px;
}
.tag-green { background: var(--sg); color: var(--s3); border: 1px solid var(--s5); }
.tag-gold  { background: var(--gold-dim); color: var(--gold); border: 1px solid var(--gold); }
.tag-ok    { background: rgba(76,175,125,0.12); color: var(--ok); border: 1px solid var(--ok); }

/* ── TABLE ── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-family: var(--fm);
  font-size: 0.92rem;
}
.data-table th {
  background: var(--c7);
  color: var(--s3);
  padding: 10px 14px;
  text-align: left;
  border: 1px solid var(--c6);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.data-table td {
  padding: 10px 14px;
  border: 1px solid var(--c6);
  color: var(--ws);
  vertical-align: middle;
}
.data-table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
.data-table tr:hover td { background: var(--sg); }

/* ── LESSON FOOTER NAV ── */
.lesson-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px 0;
  border-top: 1px solid var(--c6);
  margin-top: 60px;
}
.lesson-nav-label {
  font-family: var(--fm);
  font-size: 12px;
  color: var(--mu);
}
.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid var(--c6);
  border-radius: 6px;
  background: var(--c8);
  color: var(--ws);
  font-family: var(--fm);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  text-transform: uppercase;
}
.nav-btn:hover { border-color: var(--s5); color: var(--s3); }
.nav-btn.next { background: var(--s5); border-color: var(--s5); color: white; }
.nav-btn.next:hover { background: var(--s4); }

/* ── TELESCOPING / CANCELLATION VISUALISER ── */
.telescope-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-family: var(--fm);
  font-size: 0.9rem;
}
.telescope-row:last-child { border-bottom: none; }
.tel-n { color: var(--mu); font-size: 11px; min-width: 32px; }
.tel-expr { color: var(--ws); }
.tel-cancel { color: var(--bad); text-decoration: line-through; }
.tel-keep   { color: var(--s3); font-weight: 600; }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.section.active > * { animation: fadeUp 0.4s ease both; }
.section.active > *:nth-child(2) { animation-delay: 0.05s; }
.section.active > *:nth-child(3) { animation-delay: 0.10s; }
.section.active > *:nth-child(4) { animation-delay: 0.15s; }
.section.active > *:nth-child(5) { animation-delay: 0.20s; }

/* ── UTILITY CLASSES ── */
.hidden { display: none !important; }
.show   { display: block !important; }
.text-green  { color: var(--s3); }
.text-gold   { color: var(--gold); }
.text-ok     { color: var(--ok); }
.text-bad    { color: var(--bad); }
.text-muted  { color: var(--mu); }
.font-mono   { font-family: var(--fm); }
.font-serif  { font-family: var(--fd); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; padding: 36px 24px; }
  .lesson-badge { display: none; }
  .main { padding: 0 24px 60px; }
  .tab-nav-inner { padding: 0 16px; }
  .site-header { padding: 14px 24px; }
  .two-col { grid-template-columns: 1fr; }
  .three-col { grid-template-columns: 1fr; }
  .readout-grid { grid-template-columns: repeat(2, 1fr); }
  .sim-controls { grid-template-columns: repeat(2, 1fr); }
}
/* for footer*/
/* ── SITE FOOTER ── */
.gpm-footer {
  background: var(--c8);
  border-top: 1px solid var(--c6);
  padding: 40px 48px 32px;
  margin-top: 0;
  font-family: var(--fm);
}
.gpm-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.gpm-footer-bar {
  height: 3px;
  background: linear-gradient(90deg, var(--s4), var(--s3), var(--gold));
  border-radius: 2px;
  margin-bottom: 28px;
}
.gpm-footer-brand {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 20px;
}
.gpm-footer-logo {
  font-family: var(--fd);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--wh);
  text-decoration: none;
  display: block;
  margin-bottom: 4px;
}
.gpm-footer-logo span { color: var(--s4); }
.gpm-footer-tagline {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mu);
  display: block;
  line-height: 1.6;
}
.gpm-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 0;
  list-style: none;
  align-items: center;
}
.gpm-footer-nav li + li::before {
  content: '·';
  color: var(--c5);
  margin: 0 10px;
  font-size: 12px;
}
.gpm-footer-nav a {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mu);
  text-decoration: none;
  transition: color 0.2s;
}
.gpm-footer-nav a:hover { color: var(--s3); }
.gpm-footer-course {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--c6);
  border-bottom: 1px solid var(--c6);
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.gfc-label {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--s4);
}
.gfc-sep { color: var(--c5); font-size: 12px; }
.gfc-item {
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--mu);
}
.gpm-footer-copy {
  font-size: 10px;
  letter-spacing: 0.05em;
  color: var(--c5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.gpm-footer-copy a { color: var(--mu); text-decoration: none; transition: color 0.2s; }
.gpm-footer-copy a:hover { color: var(--gold); }
.cherry-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mu);
  border: 1px solid var(--c6);
  border-radius: 12px;
  padding: 3px 10px;
  text-decoration: none;
  transition: all 0.2s;
}
.cherry-badge:hover { border-color: var(--gold); color: var(--gold); }
 
@media (max-width: 768px) {
  .gpm-footer { padding: 32px 20px 24px; }
  .gpm-footer-brand { flex-direction: column; gap: 14px; }
  .gpm-footer-course { flex-direction: column; align-items: flex-start; gap: 6px; }
  .gpm-footer-copy { flex-direction: column; text-align: center; }
}