/* ═══════════════════════════════════════════════════════════
   BlawkOps — www.blawkops.com  (v2)
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg:        #0a0a0c;
  --bg-alt:    #111114;
  --surface:   #18181c;
  --surface-2: #1f1f24;
  --border:    #2a2a30;
  --text:      #e4e4e8;
  --text-dim:  #8a8a96;
  --text-mute: #5a5a66;
  --accent:    #7c6ef0;
  --accent-2:  #a48ef8;
  --good:      #34d399;
  --warn:      #fbbf24;
  --danger:    #f87171;
  --mono:      'JetBrains Mono', 'Fira Code', monospace;
  --sans:      'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-w:     1120px;
  --nav-h:     56px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── NAV ────────────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-logo:hover { text-decoration: none; color: var(--accent-2); }

.logo-mark {
  font-size: 20px;
  color: var(--accent);
  line-height: 1;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 20px;
  position: relative;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  position: absolute;
  left: 0;
  transition: all 0.3s;
}
.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 9px; }
.nav-toggle span:nth-child(3) { top: 18px; }

.nav-links.open { display: flex; }

/* ─── HERO ───────────────────────────────────────────────── */

.hero {
  position: relative;
  padding: calc(var(--nav-h) + 100px) 0 100px;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124, 110, 240, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 110, 240, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 80%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 20px;
  color: var(--text-dim);
  margin: 0 auto;
}

/* ─── SECTIONS ───────────────────────────────────────────── */

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}

.section-lead {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 32px;
  line-height: 1.6;
}

.section-resolve {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-2);
  margin-bottom: 16px;
}

/* ─── EXAMPLE BLOCKS (Closed Guard, Back Control) ────────── */

.example-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.example-block-reverse {
  direction: rtl;
}
.example-block-reverse > * {
  direction: ltr;
}

.example-visual {
  display: flex;
  justify-content: center;
}

.pose-real {
  width: 100%;
}

.pose-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}

.pose-frame {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.pose-img {
  width: 100%;
  height: auto;
  display: block;
}

.pose-caption {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-mute);
  text-align: center;
  padding: 6px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.pose-source {
  font-size: 12px;
  color: var(--text-mute);
  text-align: center;
  font-style: italic;
}

.example-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.example-label-tag {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(124, 110, 240, 0.1);
  padding: 4px 12px;
  border-radius: 4px;
  display: inline-block;
  align-self: flex-start;
}

.desc-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.desc-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.desc-human {
  font-size: 15px;
  color: var(--text-dim);
  font-style: italic;
  line-height: 1.6;
}

.algebra {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  overflow-x: auto;
  margin: 0;
}

.alg-name {
  color: var(--accent-2);
  font-weight: 700;
}
.alg-frame {
  color: var(--good);
}
.alg-con {
  color: var(--text);
}
.alg-closure {
  color: var(--warn);
}
.alg-forbid {
  color: var(--danger);
  opacity: 0.8;
}

.one-liner {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.5;
}
.one-liner strong {
  color: var(--text);
}

.contrast-callout {
  margin-top: 48px;
  padding: 24px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  text-align: center;
}
.contrast-callout p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.7;
}
.contrast-callout code {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent-2);
  background: rgba(124, 110, 240, 0.08);
  padding: 2px 6px;
  border-radius: 3px;
}

/* ─── LEVERAGE POINT ─────────────────────────────────────── */

.leverage-block {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.leverage-block p {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}

.leverage-open {
  font-size: 16px !important;
  color: var(--text-mute) !important;
  font-style: italic;
  margin-bottom: 28px !important;
}

.leverage-analogy {
  color: var(--text-mute) !important;
  font-size: 16px !important;
}

.leverage-punch {
  font-size: 22px !important;
  color: var(--text) !important;
  margin-top: 28px !important;
  margin-bottom: 0 !important;
}

/* ─── BEFORE / AFTER (WHY THIS CHANGES EVERYTHING) ───────── */

.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.ba-col {
  border-radius: 12px;
  padding: 32px;
  border: 1px solid var(--border);
}

.ba-before {
  background: var(--surface);
}

.ba-after {
  background: rgba(124, 110, 240, 0.05);
  border-color: var(--accent);
}

.ba-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.ba-before .ba-label { color: var(--text-mute); }
.ba-after .ba-label { color: var(--accent); }

.ba-col p {
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 6px;
}

.ba-before p { color: var(--text-dim); }
.ba-after p { color: var(--text); }

.changes-punch {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.changes-punch p {
  font-size: 20px;
  line-height: 1.5;
  color: var(--text-dim);
}

.changes-punch strong {
  color: var(--text);
}

/* ─── KANJI ANALOGY ──────────────────────────────────────── */

.kanji-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  padding: 48px 0;
  flex-wrap: wrap;
}

.kanji-example {
  text-align: center;
}

.kanji-char {
  font-size: 96px;
  line-height: 1.1;
  color: var(--text);
}

.kanji-reading {
  font-size: 14px;
  color: var(--text-mute);
  margin-top: 8px;
  font-family: var(--mono);
}

.kanji-decomp {
  display: flex;
  align-items: center;
  gap: 24px;
}

.kanji-part {
  text-align: center;
}

.kanji-radical {
  display: block;
  font-size: 56px;
  line-height: 1.1;
  color: var(--accent-2);
}

.kanji-meaning {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 6px;
  font-family: var(--mono);
}

.kanji-plus {
  font-size: 28px;
  color: var(--text-mute);
  font-weight: 300;
}

.kanji-explain {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}
.kanji-explain p {
  font-size: 17px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 12px;
}
.kanji-explain strong {
  color: var(--text);
}
.kanji-explain em {
  color: var(--accent-2);
  font-style: normal;
}

.transfer-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.transfer-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}

.transfer-heading {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.transfer-col p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.7;
}

.bridge {
  margin-top: 48px;
  text-align: center;
}

.bridge-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ─── DECOMPOSITION ──────────────────────────────────────── */

.decomp-layout {
  margin-bottom: 40px;
}

.decomp-position {
  text-align: center;
  margin-bottom: 40px;
}

.decomp-name {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.decomp-code {
  font-family: var(--mono);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent-2);
}

.decomp-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.decomp-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.decomp-heading {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.decomp-heading span {
  font-weight: 400;
  color: var(--text-dim);
  font-size: 14px;
}

.decomp-radical-h {
  color: var(--accent-2);
}
.decomp-stroke-h {
  color: var(--text-mute);
}

.decomp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.decomp-list li {
  font-size: 15px;
  padding-left: 16px;
  position: relative;
}
.decomp-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.decomp-list-dim li {
  color: var(--text-dim);
}
.decomp-list-dim li::before {
  background: var(--text-mute);
}

.decomp-note {
  font-size: 13px;
  color: var(--text-mute);
  font-style: italic;
}

.decomp-summary {
  text-align: center;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.decomp-summary p {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.7;
}
.decomp-summary strong {
  color: var(--text);
}

/* ─── ADDITIVE TEACHING SECTION ──────────────────────────── */

.additive-block {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 40px;
}

.additive-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.additive-col-new {
  border-color: var(--accent);
  background: rgba(124, 110, 240, 0.05);
}

.additive-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  color: var(--text-mute);
}

.additive-col-new .additive-label {
  color: var(--accent);
}

.additive-col p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 8px;
}

.additive-plus {
  font-size: 28px;
  color: var(--accent);
  font-weight: 300;
  display: flex;
  align-items: center;
  justify-content: center;
}

.additive-punch {
  max-width: 720px;
}
.additive-punch p {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 12px;
}

.additive-key {
  font-style: italic;
  color: var(--text-mute) !important;
  font-size: 15px !important;
}

/* ─── SHIFT (RADICAL-BASED TEACHING) ─────────────────────── */

.shift-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.shift-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.shift-num {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(124, 110, 240, 0.12);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.shift-body strong {
  font-size: 15px;
  display: block;
  margin-bottom: 4px;
}

.shift-body p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
  margin: 0;
}

.shift-example {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.shift-eg-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex-shrink: 0;
  padding-top: 3px;
}

.shift-eg-content p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.6;
  margin: 0;
}

.shift-eg-name {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-2);
  display: block;
  margin-bottom: 8px;
}

.shift-eg-note {
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 8px !important;
}

/* ─── CORE IDEA (ALPHABETIC vs LOGOGRAPHIC) ──────────────── */

.core-block {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 48px;
}

.core-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}

.core-col-highlight {
  border-color: var(--accent);
  background: rgba(124, 110, 240, 0.05);
}

.core-type {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.core-system {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.core-col-highlight .core-system {
  color: var(--accent-2);
}

.core-col p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.6;
}

.core-vs {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-mute);
  display: flex;
  align-items: center;
  justify-content: center;
}

.core-defs {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.core-def {
  text-align: center;
}
.core-def strong {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent-2);
  display: block;
  margin-bottom: 4px;
}
.core-def span {
  font-size: 14px;
  color: var(--text-dim);
}

/* ─── SYSTEM PIPELINE ────────────────────────────────────── */

.system-pipeline {
  display: flex;
  align-items: flex-start;
  margin-bottom: 48px;
}

.pipe-step {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 16px;
  text-align: center;
}

.pipe-step-final {
  border-color: var(--accent);
  background: rgba(124, 110, 240, 0.06);
}

.pipe-label {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.pipe-detail {
  font-size: 11px;
  color: var(--text-mute);
  line-height: 1.4;
}

.pipe-arrow {
  width: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  position: relative;
}
.pipe-arrow::after {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--border);
  display: block;
}
.pipe-arrow::before {
  content: '';
  position: absolute;
  right: 0;
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--accent);
  border-top: 2px solid var(--accent);
  transform: rotate(45deg);
}

.system-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.sys-detail {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}
.sys-detail strong {
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 13px;
}

/* ─── DATA & VALIDATION ──────────────────────────────────── */

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.data-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
}

.data-num {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-2);
  line-height: 1.2;
  margin-bottom: 4px;
}

.data-label {
  font-size: 13px;
  color: var(--text-dim);
}

.data-source {
  margin-bottom: 32px;
}
.data-source p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 8px;
}
.data-source strong {
  color: var(--text);
}

.data-validation {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--good);
  border-radius: 0 8px 8px 0;
}
.data-validation p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ─── WHY IT MATTERS ─────────────────────────────────────── */

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.why-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.why-item strong {
  font-size: 16px;
  display: block;
  margin-bottom: 8px;
}

.why-item p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ─── ONE STRUCTURE, MULTIPLE POSITIONS ──────────────────── */

.transform-chain {
  max-width: 520px;
  margin: 0 auto 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.transform-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}

.transform-name {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-2);
  margin-bottom: 8px;
}

.transform-code {
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  margin: 0 0 8px;
}

.hl-minus { color: var(--danger); font-weight: 700; }
.hl-plus  { color: var(--good); font-weight: 700; }
.hl-axis  { color: var(--warn); font-weight: 700; }

.transform-gloss {
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.5;
}

.transform-arrow-block {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0 10px 28px;
}

.transform-arrow-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--good);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.transform-arrow-sym {
  font-size: 18px;
  color: var(--text-mute);
}

.transform-punch {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.transform-punch p {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 12px;
}

.transform-punch strong {
  color: var(--text);
}

.transform-punchline {
  font-size: 17px !important;
  color: var(--text) !important;
  margin-top: 8px;
}

/* ─── WHAT BECOMES POSSIBLE ──────────────────────────────── */

.possible-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 48px;
  max-width: 720px;
}

.possible-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
}

.possible-icon {
  font-family: var(--mono);
  font-size: 16px;
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  padding-top: 2px;
}

.possible-item strong {
  font-size: 15px;
  display: block;
  margin-bottom: 4px;
}

.possible-item p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
  margin: 0;
}

.possible-punch {
  max-width: 720px;
  padding: 28px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
}

.possible-punch p {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 4px;
}

.possible-punch p:last-child {
  margin-bottom: 0;
}

/* ─── MATHEMATICAL STRUCTURE ─────────────────────────────── */

.math-intro {
  max-width: 680px;
  margin-bottom: 40px;
}
.math-intro p {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 8px;
}
.math-intro strong {
  color: var(--text);
}

.math-examples {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.math-ex {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}

.math-transition {
  margin-bottom: 12px;
}
.math-transition code {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-2);
}
.math-arrow {
  font-size: 18px;
  color: var(--text-mute);
  margin: 0 8px;
}

.math-op {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--good);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.math-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
}

.math-coda {
  max-width: 680px;
  margin-bottom: 32px;
}
.math-coda p {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.6;
}

.math-blackbelt {
  max-width: 680px;
  padding: 24px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
}
.math-blackbelt p {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.6;
  font-style: italic;
}

/* ─── ABOUT ─────────────────────────────────────────────── */

.about-prose {
  max-width: 760px;
  margin: 0 auto;
  text-align: justify;
  text-align-last: left;
  line-height: 1.85;
  font-size: 1.05rem;
  color: var(--text);
}

.about-prose p {
  margin: 0 !important;
  padding: 0 !important;
}

.para-space {
  height: 1.2em !important;
  min-height: 1.2em !important;
  display: block !important;
}

.section-space {
  height: 2.4em !important;
  min-height: 2.4em !important;
  display: block !important;
}

/* ─── TRY IT ─────────────────────────────────────────────── */

.tryit-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.tryit-card {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s, transform 0.2s;
}

.tryit-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.tryit-card.active {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(124, 110, 240, 0.3);
}

.tryit-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
}

.tryit-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 8px 10px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: #fff;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.3;
}

.tryit-label small {
  font-weight: 400;
  opacity: 0.7;
  font-size: 0.72rem;
}

.tryit-display {
  margin-top: 48px;
  animation: tryitFadeIn 0.3s ease;
}

@keyframes tryitFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.tryit-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.tryit-step {
  background: var(--surface);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.tryit-step-label {
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent-2);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

.tryit-step img {
  width: 100%;
  display: block;
}

.tryit-legend {
  padding: 8px 16px;
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border);
}

.tryit-legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 4px;
}

.tryit-algebra {
  margin-top: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--text);
}

.tryit-algebra .alg-title {
  color: var(--accent-2);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 16px;
}

.tryit-algebra .alg-section {
  margin-bottom: 12px;
}

.tryit-algebra .alg-label {
  color: var(--text-dim);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.tryit-algebra .alg-radical {
  color: var(--good);
  font-weight: 700;
  font-size: 1.1rem;
}

.tryit-algebra .alg-con {
  color: var(--text);
  padding-left: 16px;
}

.tryit-algebra .alg-frame {
  color: var(--warn);
  padding-left: 16px;
}

.tryit-algebra .alg-arrow {
  color: var(--accent);
}

@media (max-width: 768px) {
  .tryit-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
  .tryit-steps {
    grid-template-columns: 1fr;
  }
}

/* ─── CLOSING ────────────────────────────────────────────── */

.closing {
  text-align: center;
  padding: 40px 0;
}

.closing-text {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.closing-contact {
  text-align: center;
  margin-top: 32px;
}
.closing-contact a {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
}

/* ─── FOOTER ─────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-url {
  font-size: 13px;
  color: var(--text-mute);
}

/* ─── RESPONSIVE ─────────────────────────────────────────── */

@media (max-width: 900px) {
  .example-block,
  .example-block-reverse {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .example-block-reverse {
    direction: ltr;
  }

  .decomp-columns {
    grid-template-columns: 1fr;
  }

  .problem-block {
    grid-template-columns: 1fr;
  }

  .shift-steps {
    grid-template-columns: 1fr 1fr;
  }

  .core-block {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .core-vs {
    padding: 8px 0;
  }

  .system-pipeline {
    flex-direction: column;
  }
  .pipe-arrow {
    width: auto;
    height: 20px;
  }
  .pipe-arrow::after {
    width: 2px;
    height: 20px;
  }
  .pipe-arrow::before {
    top: auto;
    bottom: 0;
    right: auto;
    transform: rotate(135deg);
  }

  .system-details {
    grid-template-columns: 1fr;
  }

  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-grid {
    grid-template-columns: 1fr;
  }

  .before-after {
    grid-template-columns: 1fr;
  }

  .additive-block {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .additive-plus {
    padding: 8px 0;
  }

  .transfer-block {
    grid-template-columns: 1fr;
  }

  .math-examples {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    background: rgba(10, 10, 12, 0.96);
    backdrop-filter: blur(12px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links a { font-size: 16px; }
  .nav-toggle { display: block; }

  .hero {
    min-height: auto;
    padding: calc(var(--nav-h) + 48px) 0 48px;
  }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 16px; }

  .section { padding: 48px 0; }
  .section-title { font-size: 24px; margin-bottom: 28px; }

  .kanji-char { font-size: 64px; }
  .kanji-radical { font-size: 40px; }
  .kanji-block { gap: 28px; }

  .decomp-code { font-size: 28px; }

  .shift-steps {
    grid-template-columns: 1fr;
  }

  .shift-example {
    flex-direction: column;
    gap: 12px;
  }

  .data-grid {
    grid-template-columns: 1fr 1fr;
  }

  .closing-text { font-size: 20px; }
}

/* demo nav button */
.nav-demo {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 0.35em 0.9em;
  border-radius: 6px;
  font-weight: 600 !important;
  letter-spacing: 0.01em;
  transition: background 0.15s !important;
}
.nav-demo:hover { background: #5a50b0 !important; color: #fff !important; }

/* ═══ Graph section ═══ */
.graph-layout {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-top: 2rem;
}
.graph-image-wrap {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #0a0a0a;
}
.graph-img {
  width: 100%;
  height: auto;
  display: block;
}
.graph-explain {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
}
.graph-axis-label {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-2);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.graph-axis p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.graph-axis code {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text);
  background: var(--surface);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

@media (max-width: 768px) {
  .graph-explain {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* ═══ Page header (subpages) ═══ */
.page-header {
  padding: calc(var(--nav-h) + 3rem) 0 2rem;
  text-align: center;
}
.page-header h1 {
  font-family: var(--sans);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.page-sub {
  font-size: 1.1rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.page-sub strong { color: var(--text); }
.nav-active { color: var(--accent-2) !important; }

/* ═══ Defense level cards ═══ */
.level-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}
.level-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  border-left: 4px solid;
}
.level-3 { border-left-color: #2196F3; }
.level-2 { border-left-color: #FF9800; }
.level-1 { border-left-color: #E91E63; }
.level-0 { border-left-color: #F44336; }
.level-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.level-name {
  font-family: var(--sans);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin: 0.25rem 0 0.5rem;
}
.level-positions {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent-2);
  margin-bottom: 0.75rem;
}
.level-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ═══ Distance explanation ═══ */
.distance-explain {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  margin: 2rem 0 3rem;
}
.dist-block p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.dist-block strong { color: var(--text); }
.dist-label {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-2);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.chain-steps {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}
.chain-steps code {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text);
  background: var(--surface);
  padding: 0.2em 0.5em;
  border-radius: 3px;
  border: 1px solid var(--border);
}
.chain-arrow {
  color: var(--text-mute);
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
}
.chain-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--accent);
  display: block;
  margin-top: 0.15rem;
}

/* ═══ Distance matrix ═══ */
.subsection-title {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dim);
  margin: 2.5rem 0 1rem;
}
.matrix-wrap {
  overflow-x: auto;
  margin-bottom: 1rem;
}
.dist-matrix {
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.85rem;
  width: auto;
}
.dist-matrix th, .dist-matrix td {
  padding: 0.5rem 0.75rem;
  text-align: center;
  border: 1px solid var(--border);
}
.dist-matrix thead th {
  background: var(--surface);
  color: var(--accent-2);
  font-weight: 600;
}
.dist-matrix tbody th {
  background: var(--surface);
  color: var(--accent-2);
  font-weight: 600;
  text-align: right;
}
.dist-matrix td {
  color: var(--text-dim);
}
.dist-matrix td.diag {
  color: var(--text-mute);
}

/* ═══ Transitions ═══ */
.transitions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}
.trans-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
}
.trans-type {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}
.trans-pass    { color: #F44336; }
.trans-recover { color: #4CAF50; }
.trans-close   { color: #FF9800; }
.trans-lateral { color: #2196F3; }
.trans-list {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .level-grid, .distance-explain, .transitions-grid {
    grid-template-columns: 1fr;
  }
}

/* ═══ Radical definition ═══ */
.radical-def-wrap {
  display: flex;
  justify-content: center;
  margin: 2rem 0 2.5rem;
}
.radical-diagram {
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  display: inline-block;
  white-space: pre;
}
.radical-layers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.radical-layer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
}
.radical-layer p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}
.layer-label {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-2);
  margin-bottom: 0.75rem;
}
.layer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.layer-tags code {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.6rem;
}
.con-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.con-field-group {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.con-field-head {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-mute);
  margin-right: 0.25rem;
}
.con-field-group code {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.2rem 0.4rem;
}
.con-note {
  font-size: 0.85rem;
  color: var(--text-mute);
  font-style: italic;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .radical-layers { grid-template-columns: 1fr; }
  .radical-diagram { font-size: 0.75rem; padding: 1rem 1.25rem; }
  .con-fields { flex-direction: column; }
}

/* ═══ SVG Logo ═══ */
.logo-svg {
  width: 1.2em;
  height: 1.2em;
  vertical-align: -0.15em;
  margin-right: 0.15em;
  display: inline-block;
}

/* ═══ Curriculum page ═══ */
.cur-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.cur-legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}
.cur-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.cur-count {
  color: var(--text-mute);
  font-size: 0.7rem;
}
.cur-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  align-items: center;
}
.cur-filter-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-right: 0.25rem;
}
.cur-filter-btn {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
}
.cur-filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}
.cur-filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Defense level bands */
.cur-level {
  display: flex;
  gap: 0;
  margin-bottom: 1.5rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
}
.cur-level-bar {
  writing-mode: vertical-lr;
  text-orientation: mixed;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 0.6rem;
  min-width: 3rem;
  flex-shrink: 0;
}
.level-3-bar { background: rgba(33, 150, 243, 0.15); border-right: 3px solid #2196F3; }
.level-2-bar { background: rgba(255, 152, 0, 0.15); border-right: 3px solid #FF9800; }
.level-1-bar { background: rgba(233, 30, 99, 0.15); border-right: 3px solid #E91E63; }
.level-0-bar { background: rgba(244, 67, 54, 0.15); border-right: 3px solid #F44336; }
.cur-level-num {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}
.cur-level-name {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}

/* Positions area */
.cur-positions {
  flex: 1;
  padding: 1rem;
  min-width: 0;
}
.cur-positions-multi {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.cur-position {
  min-width: 0;
}
.cur-pos-header {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.cur-pos-code {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-2);
}
.cur-pos-label {
  font-size: 0.85rem;
  color: var(--text-dim);
}
.cur-pos-total {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-mute);
  margin-left: auto;
  background: var(--surface-2);
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
}

/* Phases */
.cur-phase {
  margin-bottom: 0.75rem;
}
.cur-phase-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-mute);
  margin-bottom: 0.35rem;
}
.cur-techs {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.cur-tech {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.3rem 0.5rem;
  border-left: 3px solid var(--border);
  border-radius: 0 3px 3px 0;
  font-size: 0.8rem;
  color: var(--text);
  line-height: 1.4;
  transition: background 0.1s;
}
.cur-tech:hover {
  background: rgba(255,255,255,0.03);
}
.cur-tech-op {
  font-style: italic;
  color: var(--text-dim);
}
.cur-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-mute);
  min-width: 1.5rem;
  flex-shrink: 0;
  text-align: right;
}

/* Summary table */
.cur-table small {
  color: var(--text-mute);
  font-size: 0.7rem;
  font-weight: 400;
}
.cur-table td {
  font-family: var(--mono);
}
.cur-th-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.3rem;
  vertical-align: middle;
}
.cur-total-row th,
.cur-total-row td {
  border-top: 2px solid var(--accent) !important;
}

/* Insight cards */
.cur-insights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}
.cur-insight {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
}
.cur-insight strong {
  font-size: 0.9rem;
  color: var(--text);
  display: block;
  margin-bottom: 0.5rem;
}
.cur-insight p {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 900px) {
  .cur-positions-multi {
    grid-template-columns: 1fr;
  }
  .cur-insights {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .cur-level {
    flex-direction: column;
  }
  .cur-level-bar {
    writing-mode: horizontal-tb;
    flex-direction: row;
    padding: 0.5rem 1rem;
    min-width: auto;
    border-right: none !important;
    border-bottom-width: 3px;
    border-bottom-style: solid;
  }
  .level-3-bar { border-bottom-color: #2196F3; }
  .level-2-bar { border-bottom-color: #FF9800; }
  .level-1-bar { border-bottom-color: #E91E63; }
  .level-0-bar { border-bottom-color: #F44336; }
}

/* ── Curriculum Table (ct-*) ────────────────────────────────── */
.ct-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 auto;
  max-width: 100%;
  padding: 0 1rem;
}

.ct-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  line-height: 1.45;
  min-width: 1100px;
  border: 1px solid #444;
}

.ct-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}

.ct-th {
  background: #1a1a2e;
  color: #eee;
  font-weight: 700;
  text-align: left;
  padding: 10px 12px;
  border: 1px solid #555;
  white-space: nowrap;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ct-table td {
  border: 1px solid #3a3a4a;
}

.ct-table tbody tr:hover {
  background: rgba(124, 110, 240, 0.06);
}

.ct-lvl {
  padding: 10px 12px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent);
  white-space: nowrap;
  vertical-align: top;
  width: 70px;
  background: rgba(124, 110, 240, 0.06);
}
.ct-lvl small {
  font-weight: 400;
  color: var(--text-dim);
  font-size: 0.72rem;
}

.ct-pos {
  padding: 10px 12px;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--text);
  white-space: nowrap;
  vertical-align: top;
  width: 120px;
  background: rgba(124, 110, 240, 0.03);
}
.ct-pos small {
  font-weight: 400;
  color: var(--text-dim);
  font-size: 0.7rem;
  font-family: 'Inter', sans-serif;
}

.ct-cell {
  padding: 8px 10px;
  vertical-align: top;
}
.ct-empty {
  color: var(--text-dim);
  opacity: 0.4;
  text-align: center;
}

.ct-me, .ct-op {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ct-tech {
  display: block;
  padding: 4px 8px;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--text);
  background: var(--surface);
  border-radius: 4px;
}
.ct-tech:hover {
  background: rgba(124, 110, 240, 0.1);
}

.ct-sd {
  font-style: italic;
  opacity: 0.85;
}

/* Legend / Filters */
.ct-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-dim);
}
.ct-leg-item {
  padding: 3px 8px;
  background: var(--surface);
  border-radius: 4px;
}
.ct-filter {
  padding: 6px 14px;
  background: var(--surface);
  border: 1px solid #3a3a4a;
  border-radius: 6px;
  color: var(--text);
  font-size: 0.82rem;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s, border-color 0.15s;
  user-select: none;
}
.ct-filter.active {
  background: rgba(124, 110, 240, 0.12);
  border-color: var(--accent);
  color: #fff;
}
.ct-filter:not(.active) {
  opacity: 0.4;
}
.ct-filter:hover {
  border-color: var(--accent);
  opacity: 1;
}

@media (max-width: 768px) {
  .ct-table { font-size: 0.72rem; min-width: 900px; }
  .ct-th { padding: 8px; font-size: 0.7rem; }
  .ct-cell { padding: 6px 8px; }
  .ct-tech { font-size: 0.7rem; padding: 3px 6px; }
}