/* ─── FOOTER SOCIAL ICONS ─── */
.footer-social {
  margin-top: 14px;
}
.footer-social a {
  color: var(--social-icon);
  margin-right: 18px;
  font-size: 1.5em;
  opacity: 0.7;
  transition: opacity 0.2s;
  vertical-align: middle;
}
.footer-social a:last-child {
  margin-right: 0;
}
.footer-social a:hover {
  opacity: 1;
}
/* ═══════════════════════════════════════════════════════════
   PERSONAL OS — STYLE SYSTEM
   Black & White · Semi-Transparent · Structured
   ═══════════════════════════════════════════════════════════ */

/* ── RESET & BASE ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:           #000000;
  --text-primary: #FFFFFF;
  --text-secondary: #AAAAAA;
  --text-muted:   #555555;
  --border:       rgba(255, 255, 255, 0.12);
  --border-hover: rgba(255, 255, 255, 0.25);
  --glass-bg:     rgba(255, 255, 255, 0.055);
  --glass-hover:  rgba(255, 255, 255, 0.085);
  --font:         'Inter', 'Helvetica Neue', Arial, sans-serif;
  --max-w:        1120px;
  --pad:          clamp(24px, 5vw, 64px);
  --radius:       2px;
  --transition:   0.25s ease;
  /* theme-sensitive surfaces */
  --nav-bg:              rgba(0, 0, 0, 0.75);
  --panel-bg:            #0a0a0a;
  --reader-bg:           #000000;
  --efr-bar-bg:          rgba(0, 0, 0, 0.92);
  --backdrop-bg:         rgba(0, 0, 0, 0.72);
  --scrollbar-track:     #000;
  --scrollbar-thumb:     #333;
  --scrollbar-thumb-h:   #555;
  --selection-bg:        rgba(255, 255, 255, 0.15);
  --social-icon:         #FFFFFF;
}

/* ─── LIGHT THEME OVERRIDES ─── */
[data-theme="light"] {
  --bg:                  #F5F4F0;
  --text-primary:        #0A0A0A;
  --text-secondary:      #555555;
  --text-muted:          #9A9A94;
  --border:              rgba(0, 0, 0, 0.10);
  --border-hover:        rgba(0, 0, 0, 0.22);
  --glass-bg:            rgba(0, 0, 0, 0.04);
  --glass-hover:         rgba(0, 0, 0, 0.07);
  --nav-bg:              rgba(245, 244, 240, 0.88);
  --panel-bg:            #EEEDE9;
  --reader-bg:           #F5F4F0;
  --efr-bar-bg:          rgba(238, 237, 233, 0.95);
  --backdrop-bg:         rgba(0, 0, 0, 0.42);
  --scrollbar-track:     #F5F4F0;
  --scrollbar-thumb:     #C8C7C2;
  --scrollbar-thumb-h:   #A8A8A2;
  --selection-bg:        rgba(0, 0, 0, 0.10);
  --social-icon:         #000000;
}

[data-theme="light"] .efr-scroll .md-body {
  color: #000000;
}
[data-theme="light"] .efr-scroll .md-body blockquote {
  border-left-color: rgba(0, 0, 0, 0.2);
  color: #444444;
}
[data-theme="light"] .efr-scroll .md-body a {
  color: rgba(0, 0, 0, 0.75);
  border-bottom-color: rgba(0, 0, 0, 0.2);
}
[data-theme="light"] .efr-scroll .md-body a:hover {
  color: #000000;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* ── NOISE OVERLAY ── */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ── LAYOUT HELPERS ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
}

/* ── FADE-IN ANIMATION ── */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.delay-1 { transition-delay: 0.12s; }
.delay-2 { transition-delay: 0.24s; }
.delay-3 { transition-delay: 0.36s; }

/* ─────────────────────────────────────────
   NAVIGATION
───────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  transition: color var(--transition);
  text-transform: uppercase;
}
.nav-links a:hover { color: var(--text-primary); }

.lang-toggle {
  font-size: 11px;
  font-family: var(--font);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  background: none;
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
  margin-left: 24px;
}
.lang-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

/* ── THEME TOGGLE BUTTON ── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius);
  cursor: pointer;
  margin-left: 10px;
  font-size: 13px;
  transition: color var(--transition), border-color var(--transition), transform 0.3s ease;
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  transform: rotate(20deg);
}

/* ─────────────────────────────────────────
   HERO
───────────────────────────────────────── */
.hero {
  min-height: 100vh;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: grid;
  grid-template-rows: auto auto auto;
  align-items: start;
  padding-top: 56px;
  padding-bottom: 48px;
}

.hero-meta {
  display: flex;
  gap: 20px;
  align-items: center;
  padding-top: 48px;
}

.hero-tag {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  text-transform: uppercase;
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: var(--radius);
}

.hero-content {
  text-align: center;
  padding: 0 clamp(0px, 5vw, 80px);
}

.hero-name {
  font-size: clamp(52px, 10vw, 112px);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--text-primary);
}

.hero-divider {
  width: 48px;
  height: 1px;
  background: rgba(255,255,255,0.25);
  margin: 32px auto;
}

.hero-statement {
  font-size: clamp(15px, 2.2vw, 22px);
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.02em;
}

/* Blinking cursor */
.cursor {
  display: inline-block;
  color: var(--text-primary);
  font-weight: 200;
  animation: blink 1.1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.hero-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-primary);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.status-text {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.scroll-arrow {
  animation: float 2s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(5px); }
}

/* ─────────────────────────────────────────
   SECTION SHARED
───────────────────────────────────────── */
.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(64px, 10vh, 128px) var(--pad);
  border-top: 1px solid var(--border);
}

.section--narrow {
  max-width: 720px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
}

.section-label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
}

.section-count {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: var(--radius);
}

/* ─────────────────────────────────────────
   MODULE CARDS
───────────────────────────────────────── */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
}

/* 让最后一个卡片横跨3列，完全占满第二行 */
.module-card:last-child {
  grid-column: 1 / span 3;
}

.module-card {
  background: var(--glass-bg);
  border: 1px solid transparent;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.module-card:hover {
  background: var(--glass-hover);
  border-color: var(--border-hover);
}
.module-card:hover::before { opacity: 1; }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-index {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  font-family: 'Courier New', monospace;
}

.card-tag {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: var(--radius);
  text-transform: uppercase;
}

.card-title {
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  flex: 1;
}

.card-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.card-status {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.card-link {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.card-link:hover { color: var(--text-primary); }

/* ─────────────────────────────────────────
   PHILOSOPHY
───────────────────────────────────────── */
.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
}

.principle {
  display: flex;
  gap: 28px;
  padding: 40px 36px;
  border: 1px solid var(--border);
  transition: background var(--transition);
}
.principle:hover {
  background: var(--glass-bg);
}

.principle-num {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  padding-top: 3px;
  flex-shrink: 0;
  width: 20px;
}

.principle-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.principle-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ─────────────────────────────────────────
   SIGNAL PANEL
───────────────────────────────────────── */
.signal-panel {
  background: var(--glass-bg);
  border: 1px solid var(--border);
}

.signal-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
}

.signal-divider {
  height: 1px;
  background: var(--border);
}

.signal-label {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
}

.signal-value {
  font-size: 14px;
  color: var(--text-secondary);
  text-align: right;
}

.signal-link {
  font-size: 14px;
  color: var(--text-primary);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding-bottom: 1px;
  transition: border-color var(--transition), color var(--transition);
}
.signal-link:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.6);
}

/* ─────────────────────────────────────────
   ACKNOWLEDGMENTS MODAL
───────────────────────────────────────── */
.ack-open-btn {
  font-size: 11px;
  font-family: var(--font);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  padding: 5px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.ack-open-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.acknowledgments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.ack-card {
  background: var(--glass-bg);
  border: 1px solid var(--border);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.ack-card:hover {
  background: var(--glass-hover);
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.ack-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.10);
  border: 1px solid rgba(0, 212, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.ack-card:hover .ack-icon {
  background: rgba(0, 212, 255, 0.22);
  border-color: rgba(0, 212, 255, 0.55);
  color: var(--text-primary);
}

.ack-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.ack-desc {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.ack-link {
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: color var(--transition), border-color var(--transition);
}
.ack-link:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.5);
}

.ack-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.ack-modal.ack-open {
  pointer-events: all;
  opacity: 1;
}
.ack-modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--backdrop-bg);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  cursor: pointer;
}
.ack-modal-box {
  position: relative;
  z-index: 1;
  width: 90%;
  max-width: 800px;
  max-height: 82vh;
  background: var(--panel-bg);
  border: 1px solid var(--border-hover);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.92);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.ack-modal.ack-open .ack-modal-box {
  transform: scale(1);
}
.ack-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.ack-modal-title {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
}
.ack-modal-close {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  padding: 5px 12px;
  cursor: pointer;
  border-radius: var(--radius);
  transition: color var(--transition), border-color var(--transition);
  font-family: var(--font);
}
.ack-modal-close:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}
.ack-modal-body {
  overflow-y: auto;
  padding: 28px 32px;
}
.ack-modal-body::-webkit-scrollbar { width: 3px; }
.ack-modal-body::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); }

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
}

.footer-ack-row {
  display: flex;
  justify-content: center;
  padding: 12px var(--pad);
  border-bottom: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.footer-tagline {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-style: italic;
}

/* ─────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────── */
@media (max-width: 900px) {
  .modules-grid {
    grid-template-columns: 1fr 1fr;
  }
  .module-card:last-child {
    grid-column: span 2;
  }
  .acknowledgments-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .modules-grid {
    grid-template-columns: 1fr;
  }
  .module-card:last-child {
    grid-column: span 1;
  }
  .philosophy-grid {
    grid-template-columns: 1fr;
  }
  .acknowledgments-grid {
    grid-template-columns: 1fr;
  }
  .hero-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .nav-links {
    gap: 20px;
  }
  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .signal-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 16px 24px;
  }
  .signal-value { text-align: left; }
}

/* ─────────────────────────────────────────
   SCROLLBAR
───────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-h); }

/* ─────────────────────────────────────────
   SELECTION
───────────────────────────────────────── */
::selection {
  background: var(--selection-bg);
  color: var(--text-primary);
}

/* ─────────────────────────────────────────
   MODULE PANEL (SLIDE-UP OVERLAY)
───────────────────────────────────────── */
.module-panel {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-end;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.module-panel.panel-open {
  pointer-events: all;
  opacity: 1;
}
.panel-backdrop {
  position: absolute;
  inset: 0;
  background: var(--backdrop-bg);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  cursor: pointer;
}
.panel-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-height: 88vh;
  background: var(--panel-bg);
  border-top: 1px solid var(--border-hover);
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}
.module-panel.panel-open .panel-container {
  transform: translateY(0);
}
.panel-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.panel-topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}
.panel-index {
  font-size: 11px;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  letter-spacing: 0.1em;
}
.panel-tag-label {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: var(--radius);
  text-transform: uppercase;
}
.panel-title {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}
.panel-close {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  padding: 6px 14px;
  cursor: pointer;
  border-radius: var(--radius);
  transition: color var(--transition), border-color var(--transition);
  font-family: var(--font);
}
.panel-close:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}
.panel-body {
  overflow-y: auto;
  padding: 40px;
  flex: 1;
}
.panel-body::-webkit-scrollbar { width: 3px; }
.panel-body::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); }

/* ── PROJECTS GRID ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
}
.project-cell {
  background: var(--glass-bg);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}
.project-cell:hover {
  background: var(--glass-hover);
  border-color: var(--border-hover);
}
.project-cell-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.project-num {
  font-size: 10px;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  letter-spacing: 0.1em;
}
.project-status {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: var(--radius);
  text-transform: uppercase;
}
.project-name {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.project-summary {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tags span {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: var(--radius);
}
.project-actions {
  display: flex;
  gap: 18px;
  margin-top: auto;
  flex-wrap: wrap;
}
.project-url {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  transition: color var(--transition);
  cursor: pointer;
}
.project-url:hover { color: var(--text-primary); }
.project-visit-btn {
  opacity: 0.5;
}
.project-visit-btn:hover {
  opacity: 1;
  color: var(--text-primary);
}

/* ── PROJECTS DUO ── */
.projects-duo {
  position: relative;
  display: flex;
  gap: 120px;
  align-items: flex-start;
  --project-bridge-gap: 120px;
}
.projects-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.projects-series {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
  margin-bottom: 4px;
}
.projects-col-right .projects-series {
  text-align: right;
}
.projects-spine {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 40px;
  bottom: 12px;
  width: 4px;
  pointer-events: none;
  z-index: 0;
}
.projects-spine-svg {
  width: 100%;
  height: 100%;
}
.projects-spine-line {
  stroke: var(--text-primary);
  stroke-width: 2;
  stroke-linecap: round;
  opacity: 0.55;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: mm-draw 0.7s cubic-bezier(0.4, 0, 0.2, 1) 0.1s both;
}
.project-cell-bridge {
  position: relative;
  z-index: 1;
}
.project-bridge {
  position: absolute;
  top: 50%;
  width: calc(var(--project-bridge-gap) / 2);
  height: 1px;
  background: var(--text-secondary);
  opacity: 0.6;
  transform: scaleX(0);
}
.project-cell-left .project-bridge {
  right: calc(var(--project-bridge-gap) / -2);
  transform-origin: left;
  animation: projects-branch 0.45s ease 0.2s both;
}
.project-cell-right .project-bridge {
  left: calc(var(--project-bridge-gap) / -2);
  transform-origin: right;
  animation: projects-branch 0.45s ease 0.28s both;
}
.project-bridge::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-primary);
  opacity: 0;
  transform: translateY(-50%);
  animation: mm-dot-pop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) 0.35s both;
}
.project-cell-left .project-bridge::after { right: -2px; }
.project-cell-right .project-bridge::after { left: -2px; }

@keyframes projects-branch {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* ── ESSAYS ── */
.essay-groups {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.essays-section {
  border: 1px solid var(--border);
  background: var(--glass-bg);
  padding: 18px;
}

.essays-section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.essays-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
}

.essay-empty {
  padding: 20px;
  color: var(--text-muted);
  font-size: 13px;
  letter-spacing: 0.03em;
}
.essay-item {
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.essay-item:last-child { border-bottom: none; }
.essay-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px;
  cursor: pointer;
  transition: background var(--transition);
}
.essay-header:hover { background: var(--glass-bg); }
.essay-header-left { display: flex; flex-direction: column; gap: 6px; }
.essay-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.essay-meta {
  display: flex;
  gap: 16px;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.essay-toggle {
  font-size: 18px;
  color: var(--text-muted);
  font-weight: 300;
  transition: transform 0.25s ease;
  flex-shrink: 0;
  line-height: 1;
}
.essay-item.expanded .essay-toggle { transform: rotate(45deg); }
.essay-content {
  padding: 0 28px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.essay-item.expanded .essay-content {
  max-height: 800px;
  padding: 0 28px 28px;
}
/* Markdown content styles */
.md-body {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 22px;
}
.md-body h1, .md-body h2, .md-body h3 {
  color: var(--text-primary);
  font-weight: 500;
  margin: 1.4em 0 0.6em;
  letter-spacing: -0.01em;
}
.md-body h1 { font-size: 18px; }
.md-body h2 { font-size: 16px; }
.md-body h3 { font-size: 14px; }
.md-body p { margin-bottom: 1em; }
.md-body ul, .md-body ol { padding-left: 20px; margin-bottom: 1em; }
.md-body li { margin-bottom: 4px; }
.md-body blockquote {
  border-left: 2px solid var(--border-hover);
  padding-left: 16px;
  margin: 1em 0;
  color: var(--text-muted);
  font-style: italic;
}
.md-body code {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  background: rgba(255,255,255,0.06);
  padding: 1px 6px;
  border-radius: 2px;
}
.md-body pre {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: 1em;
}
.md-body strong { color: var(--text-primary); font-weight: 500; }
.md-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5em 0;
}

/* ── MILESTONE MIND MAP ── */
.milestone-mindmap-wrap {
  margin-bottom: 44px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border);
}

.mm-section-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
  margin-bottom: 28px;
}

.mindmap-container {
  position: relative;
  width: 100%;
  max-width: 660px;
  margin: 0 auto;
  aspect-ratio: 660 / 260;
}

.mindmap-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* ── Trunk ── */
.mm-trunk {
  fill: none;
  stroke: var(--text-primary);
  stroke-width: 3;
  stroke-linecap: round;
  opacity: 0.72;
  animation: mm-draw 0.72s cubic-bezier(0.4, 0, 0.2, 1) 0.05s both;
}

/* ── Left vertical branches ── */
.mm-vert {
  fill: none;
  stroke: var(--text-primary);
  stroke-width: 1.8;
  stroke-linecap: round;
  opacity: 0.52;
}
.mm-vert-top { animation: mm-draw 0.38s ease 0.54s both; }
.mm-vert-bot { animation: mm-draw 0.38s ease 0.64s both; }

/* ── Right branches ── */
.mm-branch {
  fill: none;
  stroke: var(--text-secondary);
  stroke-width: 1.4;
  stroke-linecap: round;
  opacity: 0.6;
}
.mm-b1 { animation: mm-draw 0.44s cubic-bezier(0.4,0,0.2,1) 0.84s both; }
.mm-b2 { animation: mm-draw 0.38s cubic-bezier(0.4,0,0.2,1) 0.94s both; }
.mm-b3 { animation: mm-draw 0.44s cubic-bezier(0.4,0,0.2,1) 1.04s both; }
/* Left-side sub-branches */
.mm-b-math-code  { animation: mm-draw 0.38s cubic-bezier(0.4,0,0.2,1) 0.78s both; }
.mm-b-math-ai    { animation: mm-draw 0.38s cubic-bezier(0.4,0,0.2,1) 0.82s both; }
.mm-b-math-bc    { animation: mm-draw 0.38s cubic-bezier(0.4,0,0.2,1) 0.86s both; }
.mm-b-lead-comm  { animation: mm-draw 0.38s cubic-bezier(0.4,0,0.2,1) 0.78s both; }
.mm-b-lead-indep { animation: mm-draw 0.38s cubic-bezier(0.4,0,0.2,1) 0.82s both; }

/* ── SVG dots ── */
.mm-dot {
  fill: var(--text-primary);
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
}
.mm-jdot {
  fill: var(--text-primary);
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  animation: mm-dot-pop 0.3s cubic-bezier(0.34,1.56,0.64,1) 0.76s both;
}
.mm-dot-left    { animation: mm-dot-pop 0.26s ease 0.46s both; }
.mm-dot-math    { animation: mm-dot-pop 0.22s ease 0.90s both; }
.mm-dot-lead    { animation: mm-dot-pop 0.22s ease 1.00s both; }
.mm-dot-invest  { animation: mm-dot-pop 0.22s ease 1.26s both; }
.mm-dot-startup { animation: mm-dot-pop 0.22s ease 1.30s both; }
.mm-dot-brain   { animation: mm-dot-pop 0.22s ease 1.46s both; }
.mm-dot-code    { animation: mm-dot-pop 0.22s ease 1.14s both; }
.mm-dot-ai      { animation: mm-dot-pop 0.22s ease 1.18s both; }
.mm-dot-bc      { animation: mm-dot-pop 0.22s ease 1.22s both; }
.mm-dot-comm    { animation: mm-dot-pop 0.22s ease 1.14s both; }
.mm-dot-indep   { animation: mm-dot-pop 0.22s ease 1.18s both; }

/* ── Keyframes ── */
@keyframes mm-draw {
  from { stroke-dashoffset: 100; }
  to   { stroke-dashoffset: 0; }
}
@keyframes mm-dot-pop {
  0%   { opacity: 0; transform: scale(0.1); }
  65%  { opacity: 1; transform: scale(1.4); }
  100% { opacity: 1; transform: scale(1); }
}
@keyframes mm-node-in {
  from { opacity: 0; transform: translate(-50%, -50%) scale(0.72); }
  to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

/* ── Icon nodes ── */
.mm-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.72);
  animation: mm-node-in 0.4s cubic-bezier(0.34,1.56,0.64,1) forwards;
  text-align: center;
}
.mm-icon-ring {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.mm-node:hover .mm-icon-ring {
  background: var(--glass-hover);
  color: var(--text-primary);
  border-color: var(--text-muted);
}
.mm-lbl {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
  white-space: nowrap;
  font-family: 'Inter', sans-serif;
  font-weight: 400;
}

/* Node positions — viewBox 660×260 */
/* x%=x_svg/660*100, y%=y_svg/260*100 */
.mm-n-math    { top: 19.2%; left: 28.8%; animation-delay: 0.60s; }
.mm-n-code    { top:  5.8%; left:  9.1%; animation-delay: 0.68s; }  /* (60,15) */
.mm-n-ai      { top: 20.0%; left:  6.1%; animation-delay: 0.72s; }  /* (40,52) */
.mm-n-bc      { top: 33.8%; left:  9.1%; animation-delay: 0.76s; }  /* (60,88) */
.mm-n-lead    { top: 80.8%; left: 28.8%; animation-delay: 0.80s; }
.mm-n-comm    { top: 66.2%; left:  9.1%; animation-delay: 0.88s; }  /* (60,172) */
.mm-n-indep   { top: 86.5%; left:  7.6%; animation-delay: 0.92s; }  /* (50,225) */
.mm-n-invest  { top: 20.0%; left: 87.9%; animation-delay: 0.90s; }
.mm-n-startup { top: 50.0%; left: 87.9%; animation-delay: 1.00s; }
.mm-n-brain   { top: 80.0%; left: 87.9%; animation-delay: 1.10s; }

/* ── MILESTONE TIMELINE ── */
.timeline {
  position: relative;
  padding-left: 32px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.timeline-section-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
  margin-bottom: 24px;
  margin-left: -32px;
  padding-left: 24px;
  border-top: 1px solid var(--border);
  padding-top: 32px;
}
.timeline-section-label:first-child {
  border-top: none;
  padding-top: 0;
}
.timeline-item {
  position: relative;
  margin-bottom: 36px;
}
.timeline-dot {
  position: absolute;
  left: -28px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid rgba(255,255,255,0.4);
}
.timeline-item.major .timeline-dot {
  background: var(--text-primary);
  border-color: var(--text-primary);
  width: 10px;
  height: 10px;
  left: -29px;
  top: 5px;
}
.timeline-date {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
  margin-bottom: 6px;
}
.timeline-item-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}
.timeline-item.major .timeline-item-title {
  font-size: 17px;
}
.timeline-item-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}
.timeline-item-tag {
  display: inline-block;
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: var(--radius);
  margin-top: 8px;
  text-transform: uppercase;
}

/* ── MONTHLY REVIEW RADAR ── */
.review-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.review-chart-wrap {
  position: relative;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}
.review-chart-wrap canvas {
  display: block;
  width: 100% !important;
}
.review-meta {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.review-period {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
  margin-bottom: 20px;
}
.review-dim-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
}
.review-dim {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.review-dim:last-child { border-bottom: none; }
.review-dim:hover { background: var(--glass-bg); }
.review-dim-name {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-transform: uppercase;
}
.review-dim-bar-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}
.review-dim-bar {
  width: 80px;
  height: 2px;
  background: rgba(255,255,255,0.1);
  border-radius: 1px;
  overflow: hidden;
}
.review-dim-fill {
  height: 100%;
  background: rgba(255,255,255,0.7);
  border-radius: 1px;
}
.review-dim-score {
  font-size: 12px;
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
  width: 24px;
  text-align: right;
}
.review-notes {
  margin-top: 28px;
  border: 1px solid var(--border);
  padding: 20px 22px;
  background: var(--glass-bg);
}
.review-notes-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
  margin-bottom: 12px;
}
.review-notes p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 8px;
}
.review-notes p:last-child { margin-bottom: 0; }

/* ─── PANEL RESPONSIVE ─── */
@media (max-width: 900px) {
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .projects-duo {
    gap: 72px;
    --project-bridge-gap: 72px;
  }
  .review-layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .panel-topbar { padding: 16px 20px; }
  .panel-body { padding: 24px 20px; }
  .projects-grid { grid-template-columns: 1fr; }
  .projects-duo {
    flex-direction: column;
    gap: 24px;
    --project-bridge-gap: 0px;
  }
  .projects-spine,
  .project-bridge {
    display: none;
  }
  .projects-col-right .projects-series {
    text-align: left;
  }
  .essay-header { padding: 18px 20px; }
  .essay-content { padding: 0 20px; }
  .essay-item.expanded .essay-content { padding: 0 20px 20px; }
}

/* ─────────────────────────────────────────
   ESSAY — PREVIEW & SCROLL HINT
───────────────────────────────────────── */
.essay-preview-wrap {
  position: relative;
  overflow: hidden;
}
.essay-preview-wrap::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: linear-gradient(to bottom, transparent, var(--panel-bg));
  pointer-events: none;
}
.essay-scroll-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 0 4px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
  border-top: 1px solid var(--border);
  margin-top: 16px;
}
.essay-scroll-hint-arrow {
  animation: float 1.8s ease-in-out infinite;
  font-size: 13px;
}

/* ─────────────────────────────────────────
   FULL-SCREEN ESSAY READER
───────────────────────────────────────── */
.essay-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: var(--reader-bg);
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
  transition: opacity 0.45s ease, transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}
.essay-fullscreen.active {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

/* top bar */
.efr-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 48px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--efr-bar-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.efr-bar-left {
  display: flex;
  align-items: center;
  gap: 18px;
  overflow: hidden;
}
.efr-tag {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: var(--radius);
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}
.efr-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.efr-date {
  font-size: 10px;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  letter-spacing: 0.12em;
  flex-shrink: 0;
}
.efr-close {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  padding: 6px 14px;
  cursor: pointer;
  border-radius: var(--radius);
  transition: color var(--transition), border-color var(--transition);
  font-family: var(--font);
  flex-shrink: 0;
  margin-left: 24px;
}
.efr-close:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

/* reading progress bar */
.efr-progress {
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.55);
  width: 0%;
  transition: width 0.1s linear;
}

/* scrollable content area */
.efr-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 72px clamp(24px, 14vw, 280px) 96px;
}
.efr-scroll::-webkit-scrollbar { width: 3px; }
.efr-scroll::-webkit-scrollbar-track { background: var(--reader-bg); }
.efr-scroll::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 2px; }
.efr-scroll::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-h); }

/* typography inside the reader */
.efr-scroll .md-body {
  max-width: 680px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.9;
  color: #ccc;
}
.efr-scroll .md-body h1 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
}
.efr-scroll .md-body h2 { font-size: 20px; }
.efr-scroll .md-body h3 { font-size: 17px; }
.efr-scroll .md-body p  { margin-bottom: 1.4em; }
.efr-scroll .md-body blockquote {
  border-left: 2px solid rgba(255,255,255,0.2);
  padding-left: 20px;
  margin: 1.4em 0;
  color: var(--text-muted);
}
.efr-scroll .md-body strong { color: var(--text-primary); }
.efr-scroll .md-body a {
  color: rgba(255,255,255,0.75);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding-bottom: 1px;
  transition: color 0.2s;
}
.efr-scroll .md-body a:hover { color: #fff; }

/* end of article marker */
.efr-end {
  max-width: 680px;
  margin: 48px auto 0;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  text-transform: uppercase;
}

@media (max-width: 640px) {
  .efr-bar { padding: 14px 20px; }
  .efr-date { display: none; }
  .efr-scroll { padding: 40px 24px 80px; }
}

/* ─────────────────────────────────────────
   REVIEW — TABS, TOTAL ROW, RUBRIC LABEL
───────────────────────────────────────── */
.review-tabs-wrap {
  display: flex;
  gap: 0;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.review-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 22px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  font-family: 'Courier New', monospace;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}
.review-tab:hover { color: var(--text-secondary); }
.review-tab.active {
  color: var(--text-primary);
  border-bottom-color: rgba(255,255,255,0.7);
}
.review-total-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  margin-top: 2px;
  border: 1px solid var(--border);
  border-top: none;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.review-total-score {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--text-primary);
}
.review-rubric-lbl {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-left: 6px;
  text-transform: uppercase;
}
.review-dim-score {
  font-size: 12px;
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
  display: flex;
  align-items: center;
}

/* ─────────────────────────────────────────
   REVIEW — PREVIOUS TAB
───────────────────────────────────────── */
.review-prev-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.7;
  border-left: 2px solid var(--border);
  padding: 10px 16px;
  margin-bottom: 36px;
  font-family: 'Courier New', monospace;
}

/* Section block mirrors .milestone-mindmap-wrap */
.rev-section-block {
  margin-bottom: 36px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.rev-section-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
  margin-bottom: 20px;
}

/* Chart container: SVG scales naturally — no fixed height needed */
.rev-chart-container {
  width: 100%;
}

/* ─────────────────────────────────────────
   REVIEW — HISTORY LIST
───────────────────────────────────────── */
.rev-hist-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}
.rev-hist-item {
  border-bottom: 1px solid var(--border);
}
.rev-hist-item:last-child { border-bottom: none; }
.rev-hist-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  cursor: pointer;
  transition: background var(--transition);
  -webkit-user-select: none;
  user-select: none;
}
.rev-hist-hdr:hover { background: var(--glass-bg); }
.rev-hist-period {
  font-size: 12px;
  font-family: 'Courier New', monospace;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}
.rev-hist-total {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  flex: 1;
  text-align: right;
  margin-right: 14px;
}
.rev-hist-toggle {
  font-size: 16px;
  color: var(--text-muted);
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  line-height: 1;
  transition: transform 0.25s ease;
}
.rev-hist-body {
  display: none;
  padding: 20px 18px 24px;
  border-top: 1px solid var(--border);
  background: var(--glass-bg);
}
.rev-hist-item.open .rev-hist-body { display: block; }
.rev-hist-inner {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 28px;
  align-items: start;
}
.rev-hist-radar-box {
  width: 100%;
  max-width: 260px;
}
.rev-hist-table-wrap {
  overflow-x: auto;
}
.rev-hist-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.rev-hist-table th {
  text-align: left;
  padding: 8px 12px;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}
.rev-hist-table td {
  padding: 9px 12px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: top;
  line-height: 1.55;
}
.rev-hist-table tr:last-child td { border-bottom: none; }
.rht-score {
  font-family: 'Courier New', monospace;
  color: var(--text-primary) !important;
  white-space: nowrap;
}
.rht-level {
  font-size: 10px !important;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted) !important;
  white-space: nowrap;
}
.rht-reason {
  font-size: 11px !important;
  color: var(--text-muted) !important;
  line-height: 1.6;
}
.rht-total-cell {
  font-size: 11px;
  letter-spacing: 0.08em;
  padding-top: 12px !important;
  color: var(--text-primary) !important;
}
.rev-hist-table tfoot td {
  border-top: 1px solid var(--border);
  border-bottom: none;
}

@media (max-width: 900px) {
  .rev-hist-inner {
    grid-template-columns: 1fr;
  }
  .rev-hist-radar-box {
    max-width: 260px;
    margin: 0 auto;
  }
}
@media (max-width: 640px) {
  .review-tabs-wrap { margin-bottom: 20px; }
  .review-tab { padding: 10px 16px; }
  .rev-hist-hdr { padding: 12px 16px; }
  .rev-hist-body { padding: 16px 14px 20px; }
}

/* ─────────────────────────────────────────
   SVG TREND CHART (Previous tab)
───────────────────────────────────────── */
.svg-trend {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.trend-grid {
  stroke: rgba(0, 212, 255, 0.1);
  stroke-width: 1;
}
.trend-tick {
  font-size: 9px;
  fill: rgba(170, 170, 170, 0.5);
  font-family: 'Courier New', monospace;
}
.trend-xlabel {
  font-size: 10px;
  fill: rgba(170, 170, 170, 0.65);
  font-family: 'Inter', sans-serif;
}
.trend-fill {
  fill: rgba(0, 212, 255, 0.06);
}
.trend-line {
  fill: none;
  stroke: #00D4FF;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  animation: svg-dashoffset 1.1s cubic-bezier(0.4, 0, 0.2, 1) 0.1s both;
}
@keyframes svg-dashoffset {
  to { stroke-dashoffset: 0; }
}
.trend-dot {
  fill: #00D4FF;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  animation: mm-dot-pop 0.28s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.trend-score-lbl {
  font-size: 10px;
  fill: rgba(255, 255, 255, 0.65);
  font-family: 'Courier New', monospace;
  opacity: 0;
  animation: svg-fade-in 0.3s ease both;
}
@keyframes svg-fade-in {
  to { opacity: 1; }
}

/* ─────────────────────────────────────────
   SVG RADAR CHART (history items)
───────────────────────────────────────── */
.svg-radar {
  display: block;
  width: 100%;
  height: auto;
}
.radar-grid {
  fill: none;
  stroke: rgba(0, 212, 255, 0.12);
  stroke-width: 1;
}
.radar-spoke {
  stroke: rgba(0, 212, 255, 0.1);
  stroke-width: 1;
}
/* Paused by default; starts when the parent item gets .open */
.radar-data {
  fill: rgba(0, 212, 255, 0.1);
  stroke: #00D4FF;
  stroke-width: 2;
  stroke-linejoin: round;
  animation: svg-dashoffset 0.9s cubic-bezier(0.4, 0, 0.2, 1) 0.15s both;
  animation-play-state: paused;
}
.rev-hist-item.open .radar-data {
  animation-play-state: running;
}
.radar-dot {
  fill: #00D4FF;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  animation: mm-dot-pop 0.28s cubic-bezier(0.34, 1.56, 0.64, 1) both;
  animation-play-state: paused;
}
.rev-hist-item.open .radar-dot {
  animation-play-state: running;
}
.radar-label {
  font-size: 9px;
  fill: rgba(170, 170, 170, 0.85);
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.04em;
}