/* =============================================
   AI LEVEL MATRIX page
   Mirrors dignity-matrix structure (HERO / archetypes /
   scales / matrix / design principles), with zone-coloured
   cells for the T×C grid.
   ============================================= */

/* ── HERO ── */
.al-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 100px 60px 80px;
  position: relative;
  overflow: hidden;
}
.al-hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 40%, rgba(20,40,68,0.95) 100%),
    repeating-linear-gradient(0deg, transparent, transparent 79px, var(--border2) 80px),
    repeating-linear-gradient(90deg, transparent, transparent 79px, var(--border2) 80px);
  opacity: 0.4;
}
.al-hero-inner { position: relative; max-width: 1200px; }
.al-hero-chapter {
  font-family: var(--font-display-en-alt);
  font-size: 0.78rem;
  letter-spacing: 4px;
  color: var(--text3);
  margin-bottom: 20px;
}
.al-hero-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 300;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 12px;
}
.al-hero-title-en {
  font-family: var(--font-display-en-alt);
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  color: var(--text3);
  letter-spacing: 2px;
  margin-bottom: 40px;
}
.al-hero-desc {
  font-size: 0.88rem;
  color: var(--text2);
  max-width: 560px;
  line-height: 1.95;
  margin-bottom: 48px;
  padding-left: 20px;
  border-left: 1px solid var(--border);
}
.al-hero-formula {
  font-family: var(--font-display-en-alt);
  font-size: 0.9rem;
  color: var(--text3);
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.al-hero-formula em { color: var(--accent); font-style: normal; }
.al-intro {
  max-width: 760px;
  margin: 36px 0 0;
  padding: 24px clamp(20px, 4vw, 40px);
  border-left: 2px solid var(--accent2);
  background: var(--bg2);
  color: var(--text2);
  font-size: 0.92rem;
  line-height: 1.95;
}

/* ── SECTION (shared with dignity-matrix layout) ── */
.section {
  padding: 100px 60px;
  border-top: 1px solid var(--border2);
  max-width: 1280px;
  margin: 0 auto;
}
.section-header {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 32px;
  align-items: baseline;
  margin-bottom: 60px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border2);
}
.section-num {
  font-family: var(--font-display-en-alt);
  font-size: 0.75rem;
  letter-spacing: 3px;
  color: var(--text3);
  text-transform: uppercase;
}
.section-title-ja {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 400;
  color: var(--text);
  margin-bottom: 4px;
}
.section-title-en {
  font-family: var(--font-display-en-alt);
  font-size: 0.82rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text3);
}
.section-subtitle {
  font-family: var(--font-display-en-alt);
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: var(--text3);
  margin-top: 6px;
}

/* ── ARCHETYPES (section 01) ── */
.al-arch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border2);
}
.al-arch-card {
  background: var(--surface);
  padding: 28px 24px;
  cursor: pointer;
  transition: background 0.2s;
  position: relative;
  overflow: hidden;
}
.al-arch-card:hover { background: var(--bg3); }
.al-arch-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--zone-color, transparent);
  opacity: 0.45;
}
.al-arch-badge {
  display: inline-block;
  font-family: var(--font-display-en-alt);
  font-size: 0.72rem;
  letter-spacing: 2px;
  padding: 2px 8px;
  border: 1px solid var(--text3);
  margin-bottom: 12px;
}
.al-arch-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 4px;
}
.al-arch-coord {
  font-family: var(--font-display-en-alt);
  font-size: 0.8rem;
  letter-spacing: 1px;
  color: var(--text3);
  margin-bottom: 12px;
}
.al-arch-defn {
  font-size: 0.8rem;
  color: var(--text2);
  line-height: 1.75;
  margin-bottom: 14px;
}
.al-arch-zone {
  font-size: 0.66rem;
  letter-spacing: 1.5px;
  color: var(--text3);
  text-transform: uppercase;
  padding-top: 12px;
  border-top: 1px solid var(--border2);
}

/* ── SCALES (section 02) ── */
.al-scales-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.al-scale-col-title {
  font-family: var(--font-display-en-alt);
  font-size: 0.78rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border2);
}
.al-scale-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border2);
  cursor: pointer;
  transition: all 0.15s;
}
.al-scale-item:hover { padding-left: 6px; }
.al-scale-badge {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display-en-alt);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--bg);
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}
.al-scale-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 4px;
}
.al-scale-defn {
  font-size: 0.76rem;
  color: var(--text2);
  line-height: 1.7;
}

/* ── MATRIX (section 03) ── */
.al-matrix-intro {
  font-size: 0.82rem;
  color: var(--text3);
  margin-bottom: 24px;
  padding-left: 16px;
  border-left: 1px solid var(--border);
  line-height: 1.9;
  max-width: 760px;
}
.al-matrix-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  margin-bottom: 24px;
}
.al-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  color: var(--text3);
  letter-spacing: 0.5px;
}
.al-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  border: 1px solid rgba(255,255,255,0.08);
}
.al-matrix-wrap {
  overflow-x: auto;
  border: 1px solid var(--border2);
}
.al-matrix-table {
  border-collapse: collapse;
  min-width: 880px;
  width: 100%;
}
.al-matrix-table td, .al-matrix-table th {
  border: 1px solid var(--border2);
  padding: 0;
}
.al-matrix-table .m-corner {
  background: var(--bg);
  width: 88px;
  padding: 8px;
  font-size: 0.62rem;
  letter-spacing: 1px;
  color: var(--text3);
  text-align: center;
}
.al-matrix-table .m-axis {
  background: var(--bg2);
  padding: 10px;
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text3);
  text-align: center;
}
.al-matrix-table .m-inner-h,
.al-matrix-table .m-outer-h {
  width: 88px;
  padding: 10px 6px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text);
  background: var(--surface);
  text-align: center;
  line-height: 1.4;
  font-family: var(--font-display-en-alt);
  letter-spacing: 1px;
}
.al-matrix-table .m-h-sub {
  display: block;
  font-weight: 300;
  font-size: 0.58rem;
  margin-top: 3px;
  color: var(--text3);
  letter-spacing: 0;
  font-family: 'Noto Serif JP', serif;
}
.al-matrix-table .m-cell {
  width: 88px;
  height: 60px;
  padding: 6px 5px;
  font-size: 0.62rem;
  line-height: 1.3;
  cursor: pointer;
  transition: filter 0.15s, transform 0.15s;
  text-align: center;
  vertical-align: middle;
}
.al-matrix-table .m-cell:hover {
  filter: brightness(1.35);
  transform: scale(1.05);
  z-index: 2;
  position: relative;
}
.al-matrix-table .m-cell-code {
  font-family: var(--font-display-en-alt);
  font-weight: 600;
  font-size: 0.65rem;
  letter-spacing: 0.5px;
}
.al-matrix-table .m-cell-name {
  font-size: 0.56rem;
  margin-top: 2px;
  opacity: 0.85;
}
.al-matrix-table .m-diag {
  outline: 1px solid rgba(217,163,75,0.5);
  outline-offset: -2px;
}
.al-matrix-table .m-empty {
  background: var(--bg) !important;
  color: var(--text4) !important;
  cursor: default;
  font-size: 0.7rem;
}

/* ── DESIGN PRINCIPLES (section 04) ── */
.al-principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border2);
}
.al-principle-card {
  background: var(--surface);
  padding: 28px 32px;
}
.al-principle-tag {
  font-family: var(--font-display-en-alt);
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.al-principle-headline {
  font-family: 'Noto Serif JP', serif;
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 12px;
  font-style: italic;
  line-height: 1.5;
}
.al-principle-body {
  font-size: 0.82rem;
  color: var(--text2);
  line-height: 1.85;
  margin-bottom: 10px;
}
.al-principle-en {
  font-size: 0.72rem;
  color: var(--text3);
  line-height: 1.7;
  font-style: italic;
}
.al-framework-note {
  margin-top: 28px;
  font-size: 0.76rem;
  color: var(--text3);
  line-height: 1.85;
  padding-left: 16px;
  border-left: 1px solid var(--border2);
  max-width: 800px;
}

/* ── BACK LINK ── */
.al-back-wrap {
  text-align: center;
  padding: 40px 24px 0;
}
.al-back-wrap.end { padding: 60px 24px 20px; }
.al-back {
  display: inline-block;
  margin: 24px 0 8px;
  font-family: 'EB Garamond', 'Cormorant Garamond', serif;
  font-size: 0.78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent2);
  text-decoration: none;
  border-bottom: 1px solid rgba(160,144,128,0.35);
  padding-bottom: 3px;
  transition: color 0.2s, border-color 0.2s;
}
.al-back:hover { color: var(--accent); border-color: var(--accent); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .al-scales-grid { grid-template-columns: 1fr; gap: 40px; }
  .al-hero { padding: 100px 24px 60px; }
  .section { padding: 60px 24px; }
  .section-header { grid-template-columns: 1fr; gap: 8px; }
}