/* ============================================================
   JOWIN JESTINE — PORTFOLIO
   Design: Dark, glassmorphism, cyan-purple gradient accent
   ============================================================ */

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

:root {
  /* Palette */
  --bg:          #080d1a;
  --bg2:         #0d1528;
  --card:        rgba(255,255,255,0.04);
  --card-hover:  rgba(255,255,255,0.07);
  --border:      rgba(255,255,255,0.08);
  --border-glow: rgba(56,189,248,0.3);

  --blue:   #38bdf8;
  --purple: #a855f7;
  --cyan:   #06b6d4;

  --t1: #f1f5f9;
  --t2: #94a3b8;
  --t3: #64748b;

  /* Gradients */
  --grad: linear-gradient(135deg, var(--blue), var(--purple));

  /* Type */
  --sans: 'Inter', sans-serif;
  --mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --max-w: 1100px;
  --sec-pad: 120px;
  --r: 16px;
  --r-sm: 8px;
  --r-pill: 100px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 0.3s;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--t1);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 44px;
  transition: padding var(--dur) var(--ease), background var(--dur) var(--ease);
}

#navbar.scrolled {
  padding: 14px 44px;
  background: rgba(8,13,26,0.82);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -1px;
  text-decoration: none;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  color: var(--t2);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--r-sm);
  transition: color var(--dur), background var(--dur);
}

.nav-links a:hover {
  color: var(--t1);
  background: var(--card);
}

.nav-links .nav-cta {
  background: var(--grad);
  color: #fff !important;
  -webkit-text-fill-color: #fff;
  padding: 8px 22px;
  border-radius: var(--r-pill);
  margin-left: 8px;
}

.nav-links .nav-cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
  background: var(--grad);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--t1);
  border-radius: 2px;
  transition: transform var(--dur), opacity var(--dur);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  z-index: 998;
  background: rgba(8,13,26,0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  transform: translateY(-20px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur), transform var(--dur);
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-link {
  color: var(--t2);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--dur);
}

.mobile-link:last-child { border-bottom: none; }
.mobile-link:hover { color: var(--blue); }

/* ============================================================
   HERO
   ============================================================ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
}

.hero-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56,189,248,0.08) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 860px;
}

/* Name */
.hero-name {
  margin-bottom: 20px;
  opacity: 0;
}

.hero-greeting {
  display: block;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 400;
  color: var(--t2);
  margin-bottom: 6px;
}

.hero-title {
  display: block;
  font-size: clamp(52px, 9vw, 104px);
  font-weight: 900;
  letter-spacing: -3px;
  line-height: 1.02;
}

/* Journey trail */
.hero-journey {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 22px;
  font-size: 12px;
  font-family: var(--mono);
  color: var(--t3);
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translateY(20px);
}

.journey-arrow {
  color: var(--blue);
  opacity: 0.7;
  font-size: 11px;
}

/* Role line */
.hero-role {
  font-size: clamp(17px, 2.2vw, 22px);
  color: var(--t2);
  margin-bottom: 24px;
  font-weight: 300;
  opacity: 0;
}

.role-typed {
  color: var(--blue);
  font-family: var(--mono);
  font-weight: 600;
}

.cursor {
  color: var(--blue);
  font-family: var(--mono);
  animation: blink 0.65s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* Desc */
.hero-desc {
  font-size: 16px;
  color: var(--t2);
  max-width: 580px;
  margin: 0 auto 44px;
  line-height: 1.75;
  opacity: 0;
}

.hero-desc strong { color: var(--t1); }

/* Stats */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  margin-bottom: 44px;
  opacity: 0;
}

.stat { text-align: center; }

.stat-num {
  font-size: 40px;
  font-weight: 800;
  font-family: var(--mono);
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-suffix {
  font-size: 28px;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 11px;
  color: var(--t3);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-top: 4px;
  font-weight: 500;
}

.stat-sep {
  width: 1px;
  height: 44px;
  background: var(--border);
}

/* "Now" ticker strip */
.hero-now {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  opacity: 0;
}

.now-label {
  font-size: 11px;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 1px;
  white-space: nowrap;
  flex-shrink: 0;
}

.now-track {
  overflow: hidden;
  flex: 1;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.now-items {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  white-space: nowrap;
  animation: nowScroll 22s linear infinite;
  font-size: 12px;
  color: var(--t3);
}

.now-items em { color: var(--t2); font-style: normal; }

.now-sep {
  color: rgba(56,189,248,0.35);
  flex-shrink: 0;
}

@keyframes nowScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* CTA */
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  opacity: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 34px;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--dur) var(--ease);
  cursor: pointer;
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(56,189,248,0.28);
}

.btn-ghost {
  color: var(--t1);
  border: 1px solid var(--border);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
}

.btn-icon {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50%;
  color: var(--t2);
  background: transparent;
  text-decoration: none;
  transition: border-color var(--dur), color var(--dur), box-shadow var(--dur), transform var(--dur);
  flex-shrink: 0;
}
.btn-icon:hover {
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 0 20px rgba(56,189,248,0.18);
  transform: translateY(-2px);
}
.btn-icon svg { width: 20px; height: 20px; }

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--t3);
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeUp 0.8s 2.8s forwards;
}

.scroll-line {
  width: 1px;
  height: 38px;
  background: linear-gradient(to bottom, var(--t3), transparent);
  animation: scrollAnim 2s ease-in-out infinite;
}

@keyframes scrollAnim {
  0%   { transform: scaleY(0); transform-origin: top; }
  49%  { transform: scaleY(1); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes fadeUp {
  to { opacity: 1; }
}

/* ============================================================
   SECTION COMMON
   ============================================================ */
section { padding: var(--sec-pad) 0; }

#experience,
#contact { background: var(--bg); }
#about,
#skills,
#education { background: var(--bg2); }

.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

.section-header h2 {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 72px;
  align-items: start;
}

/* Orbit visual */
.orbit-wrap {
  position: relative;
  width: 340px;
  height: 340px;
  flex-shrink: 0;
}

#orbitCanvas {
  display: block;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: radial-gradient(circle at center, rgba(56,189,248,0.06), rgba(168,85,247,0.04));
}

.orbit-badge {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}

.orbit-badge-icon { font-size: 16px; }

.orbit-location {
  position: absolute;
  top: -10px;
  right: -10px;
  background: rgba(56,189,248,0.12);
  border: 1px solid rgba(56,189,248,0.28);
  border-radius: var(--r-pill);
  padding: 6px 14px;
  font-size: 12px;
  color: var(--blue);
  white-space: nowrap;
}

/* About text */
.about-body p {
  color: var(--t2);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 18px;
}

.about-body p strong { color: var(--t1); }

.about-pills {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  box-sizing: border-box;
}

.about-pill {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  transition: border-color var(--dur), transform var(--dur), background var(--dur);
}

.about-pill:hover {
  border-color: var(--border-glow);
  background: var(--card-hover);
  transform: translateX(5px);
}

.pill-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }

.about-pill strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}

.about-pill span {
  font-size: 13px;
  color: var(--t3);
}

/* Interests row */
.about-interests {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.interests-label {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--t3);
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.interests-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.interest-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--t2);
  background: rgba(56,189,248,0.06);
  border: 1px solid rgba(56,189,248,0.14);
  border-radius: var(--r-pill);
  padding: 5px 12px;
  font-family: var(--mono);
  transition: background var(--dur), border-color var(--dur), color var(--dur), transform var(--dur);
  cursor: default;
}

.interest-chip:hover {
  background: rgba(56,189,248,0.14);
  border-color: rgba(56,189,248,0.35);
  color: var(--blue);
  transform: translateY(-2px);
}

/* ============================================================
   TIMELINE / EXPERIENCE
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 36px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--blue), var(--purple), transparent);
  border-radius: 2px;
}

.tl-item {
  position: relative;
  margin-bottom: 28px;
}

.tl-item:last-child { margin-bottom: 0; }

.tl-dot {
  position: absolute;
  left: -41px;
  top: 28px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--grad);
  border: 2.5px solid var(--bg);
  box-shadow: 0 0 14px rgba(56,189,248,0.5);
  transition: transform var(--dur);
}

.tl-item:hover .tl-dot { transform: scale(1.3); }

.tl-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px 32px;
  transition: border-color var(--dur), transform var(--dur), box-shadow var(--dur), background var(--dur);
}

.tl-card:hover {
  border-color: rgba(56,189,248,0.22);
  background: var(--card-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}

.tl-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.tl-header h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.tl-location {
  font-size: 13px;
  color: var(--t3);
}

.tl-meta { text-align: right; flex-shrink: 0; }

.tl-role {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 4px;
}

.tl-date {
  font-size: 12px;
  color: var(--t3);
  font-family: var(--mono);
}

.tl-bullets {
  list-style: none;
  margin-bottom: 20px;
}

.tl-bullets li {
  position: relative;
  padding: 5px 0 5px 22px;
  font-size: 14px;
  color: var(--t2);
  line-height: 1.65;
}

.tl-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-size: 12px;
  top: 6px;
}

.tl-bullets strong { color: var(--t1); }


/* Word-reveal spans (Feature 1 — pretext-powered) */
.reveal-word {
  display: inline-block;
}

.tl-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tl-tags span {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  background: rgba(56,189,248,0.07);
  border: 1px solid rgba(56,189,248,0.16);
  color: var(--blue);
  letter-spacing: 0.2px;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 26px 24px;
  transition: border-color var(--dur), transform var(--dur), box-shadow var(--dur);
}

.skill-card:hover {
  border-color: rgba(168,85,247,0.28);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

.skill-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.skill-emoji { font-size: 22px; }

.skill-card h3 {
  font-size: 14px;
  font-weight: 700;
}

.skill-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  border: 1px solid;
  cursor: default;
  transition: transform var(--dur), box-shadow var(--dur);
}

.chip:hover { transform: translateY(-2px); }

.chip.c1 {
  background: rgba(56,189,248,0.09);
  border-color: rgba(56,189,248,0.28);
  color: var(--blue);
}

.chip.c1:hover { box-shadow: 0 4px 14px rgba(56,189,248,0.2); }

.chip.c2 {
  background: rgba(168,85,247,0.07);
  border-color: rgba(168,85,247,0.22);
  color: #c084fc;
}

.chip.c2:hover { box-shadow: 0 4px 14px rgba(168,85,247,0.2); }

/* ============================================================
   LOGO STRIP
   ============================================================ */
.logo-strip {
  padding: 20px 0 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.015);
}

.logo-strip-label {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--t3);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
  text-align: center;
  opacity: 0.6;
}

.logo-strip-track {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 0;
}

.logo-item {
  font-size: 13px;
  font-weight: 600;
  color: var(--t3);
  padding: 0 18px;
  letter-spacing: 0.01em;
  transition: color var(--dur);
}

.logo-item:hover { color: var(--t1); }

.logo-item-highlight {
  color: var(--blue);
  opacity: 0.85;
}

.logo-item-highlight:hover { opacity: 1; color: var(--blue); }

.logo-sep {
  color: var(--border);
  font-size: 16px;
}

/* ============================================================
   IMPACT TIMELINE
   ============================================================ */
#impact { padding: var(--sec-pad) 0; }

#impactCanvas {
  width: 100%;
  display: block;
  border-radius: var(--r);
}

/* ============================================================
   EXPLORING
   ============================================================ */
#exploring { padding: var(--sec-pad) 0; }

.exploring-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.explore-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px;
  transition: border-color var(--dur), transform var(--dur), box-shadow var(--dur);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.explore-card:hover {
  border-color: rgba(168,85,247,0.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.explore-icon {
  font-size: 28px;
}

.explore-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--t1);
  line-height: 1.4;
}

.explore-card p {
  font-size: 13px;
  color: var(--t3);
  line-height: 1.7;
  flex: 1;
}

.explore-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-family: var(--mono);
  color: var(--blue);
  margin-top: 4px;
}

.explore-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.8); }
}

@media (max-width: 640px) {
  .exploring-grid { grid-template-columns: 1fr; }
}


/* ============================================================
   PUBLICATIONS
   ============================================================ */
#publications { background: var(--bg2); }

.pub-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 44px 48px;
  opacity: 0;
  transform: translateY(22px);
  transition: border-color var(--dur), box-shadow var(--dur);
  max-width: 860px;
  margin: 0 auto;
}
.pub-card:hover {
  border-color: rgba(56,189,248,0.22);
  box-shadow: 0 0 40px rgba(56,189,248,0.06);
}

.pub-journal-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.pub-journal-name {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--grad);
  padding: 4px 12px;
  border-radius: var(--r-pill);
}
.pub-publisher {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--t3);
  letter-spacing: 0.5px;
}

.pub-title {
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 700;
  color: var(--t1);
  line-height: 1.4;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.pub-authors {
  font-size: 13px;
  color: var(--t2);
  margin-bottom: 18px;
  line-height: 1.6;
}
.pub-authors strong { color: var(--cyan); }

.pub-abstract {
  font-size: 14px;
  color: var(--t2);
  line-height: 1.75;
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.pub-metrics {
  display: flex;
  gap: 48px;
  margin-bottom: 28px;
}
.pub-metric { display: flex; flex-direction: column; gap: 4px; }
.pm-val {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.pm-lbl {
  font-size: 11px;
  color: var(--t3);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pub-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.pub-doi-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--blue);
  text-decoration: none;
  transition: color var(--dur);
}
.pub-doi-link:hover { color: var(--cyan); }

.pub-contribution {
  font-size: 12px;
  color: var(--t3);
  font-style: italic;
}

/* AUC Chart */
.pub-auc-wrap {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.pub-auc-title {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--t3);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

#aucChart {
  width: 100%;
  display: block;
  border-radius: 6px;
}

.pub-auc-note {
  font-size: 11px;
  color: var(--t3);
  margin-top: 8px;
  font-style: italic;
}

/* ============================================================
   PHILOSOPHY
   ============================================================ */
#philosophy { padding: var(--sec-pad) 0; }

.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.phil-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 32px;
  transition: border-color var(--dur), transform var(--dur), box-shadow var(--dur);
}

.phil-card:hover {
  border-color: rgba(56,189,248,0.25);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.phil-featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(56,189,248,0.07), rgba(168,85,247,0.07));
  border-color: rgba(56,189,248,0.2);
  position: relative;
  overflow: hidden;
}

.phil-featured::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(56,189,248,0.04), transparent);
  pointer-events: none;
}

.phil-quote-mark {
  font-size: 96px;
  line-height: 0.6;
  font-family: Georgia, serif;
  color: var(--blue);
  opacity: 0.25;
  margin-bottom: 16px;
  display: block;
}

.phil-quote {
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 500;
  color: var(--t1);
  line-height: 1.65;
  font-style: normal;
  border: none;
  padding: 0;
  margin: 0 0 16px;
  max-width: 820px;
}

.phil-cite {
  font-size: 13px;
  font-family: var(--mono);
  color: var(--blue);
  font-style: normal;
  opacity: 0.8;
}

.phil-icon {
  font-size: 28px;
  display: block;
  margin-bottom: 14px;
}

.phil-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--t1);
  margin-bottom: 10px;
  line-height: 1.4;
}

.phil-card p {
  font-size: 14px;
  color: var(--t3);
  line-height: 1.7;
}

@media (max-width: 640px) {
  .philosophy-grid { grid-template-columns: 1fr; }
  .phil-featured   { grid-column: 1; }
}


/* ============================================================
   EDUCATION
   ============================================================ */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 820px;
  margin: 0 auto;
}

.edu-card {
  position: relative;
  display: flex;
  gap: 20px;
  padding: 32px 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  transition: border-color var(--dur), transform var(--dur), box-shadow var(--dur);
}

.edu-card:hover {
  border-color: rgba(56,189,248,0.28);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

.edu-glow {
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56,189,248,0.12), transparent);
  pointer-events: none;
  transition: opacity var(--dur);
}

.edu-card:hover .edu-glow { opacity: 1.5; }

.edu-icon-wrap {
  font-size: 36px;
  flex-shrink: 0;
  margin-top: 2px;
}

.edu-body h3 {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.edu-school {
  display: block;
  font-size: 13px;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 4px;
}

.edu-loc {
  font-size: 12px;
  color: var(--t3);
}

/* ============================================================
   CONTACT
   ============================================================ */
#contact { overflow: hidden; }

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

.contact-wrap h2 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -1.5px;
  margin: 14px 0 16px;
}

.contact-wrap > p {
  color: var(--t2);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 26px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  text-decoration: none;
  text-align: left;
  transition: border-color var(--dur), background var(--dur), transform var(--dur);
}

.contact-card:hover {
  border-color: var(--border-glow);
  background: rgba(56,189,248,0.05);
  transform: translateX(8px);
}

.contact-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--r-sm);
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--t3);
  margin-bottom: 3px;
}

.contact-val {
  font-size: 15px;
  font-weight: 600;
  color: var(--t1);
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  padding: 36px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-logo {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.footer-name {
  font-size: 13px;
  color: var(--t3);
}

.footer-built {
  font-size: 12px;
  color: var(--t3);
  font-family: var(--mono);
  opacity: 0.7;
}

.footer-copy {
  font-size: 13px;
  color: var(--t3);
}

.footer-hint {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--t3);
  opacity: 0.5;
}
.footer-hint kbd {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--t2);
}

/* ============================================================
   ANIMATIONS (initial hidden states for GSAP)
   ============================================================ */
.hero-name,
.hero-role,
.hero-desc,
.hero-stats,
.hero-now,
.hero-actions {
  transform: translateY(20px);
}

.tl-item {
  opacity: 0;
  transform: translateX(-18px);
}

.skill-card {
  opacity: 0;
  transform: translateY(22px);
}

.edu-card {
  opacity: 0;
  transform: translateY(22px);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid  { grid-template-columns: 1fr; gap: 56px; }
  .orbit-wrap  { margin: 0 auto; }
}

@media (max-width: 640px) {
  :root { --sec-pad: 80px; }

  #navbar { padding: 16px 20px; }
  #navbar.scrolled { padding: 12px 20px; }

  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }

  .hero-stats   { gap: 20px; }
  .stat-num     { font-size: 30px; }
  .stat-suffix  { font-size: 20px; }

  .skills-grid      { grid-template-columns: 1fr; }
  .edu-grid         { grid-template-columns: 1fr; }

  .tl-header { flex-direction: column; }
  .tl-meta   { text-align: left; }

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

  .hero-actions { flex-direction: column; align-items: center; }
}

/* ============================================================
   CUSTOM CURSOR
   ============================================================ */
.c-dot {
  position: fixed;
  width: 6px;
  height: 6px;
  background: var(--blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
}

.c-ring {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(56,189,248,0.55);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.22s var(--ease), height 0.22s var(--ease), border-color 0.22s var(--ease);
}

.c-ring.hovered {
  width: 54px;
  height: 54px;
  border-color: rgba(168,85,247,0.65);
}

@media (pointer: coarse) {
  .c-dot, .c-ring { display: none; }
}

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2.5px;
  width: 0%;
  background: var(--grad);
  z-index: 10001;
  border-radius: 0 2px 2px 0;
  transition: width 0.08s linear;
}

/* ============================================================
   PROJECTS SECTION
   ============================================================ */
#projects { background: var(--bg); }
#skills   { background: var(--bg2); }

/* Filter tabs */
.filter-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

.filter-tab {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 8px 20px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--t3);
  cursor: pointer;
  transition: all var(--dur) var(--ease);
}

.filter-tab:hover {
  border-color: var(--border-glow);
  color: var(--blue);
}

.filter-tab.active {
  background: rgba(56,189,248,0.1);
  border-color: rgba(56,189,248,0.32);
  color: var(--blue);
}

/* Featured card */
.featured-card {
  position: relative;
  padding: 44px 48px;
  border-radius: var(--r);
  margin-bottom: 20px;
  overflow: hidden;
  background: #0b1322; /* fallback; ::after provides the same bg above the gradient ::before */
}

/* Animated rotating gradient border */
.featured-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--r) + 2px);
  background: conic-gradient(from var(--angle, 0deg), var(--blue), var(--purple), var(--cyan), var(--blue));
  z-index: 0;
  animation: spinBorder 6s linear infinite;
}

/* Dark fill that covers interior, revealing only the border edge */
.featured-card::after {
  content: '';
  position: absolute;
  inset: 1.5px;
  border-radius: calc(var(--r) - 1px);
  background: #0b1322;
  z-index: 1;
}

/* All card content must sit above the ::after overlay */
.featured-card > * {
  position: relative;
  z-index: 2;
}

@property --angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

@keyframes spinBorder {
  to { --angle: 360deg; }
}

.featured-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.featured-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--blue);
}

.featured-title {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 14px;
}

.featured-desc {
  color: var(--t2);
  font-size: 15px;
  line-height: 1.75;
  max-width: 720px;
  margin-bottom: 32px;
}

.featured-metrics {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.featured-metric {
  padding: 14px 20px;
  background: rgba(56,189,248,0.06);
  border: 1px solid rgba(56,189,248,0.14);
  border-radius: var(--r-sm);
  text-align: center;
  min-width: 100px;
  transition: border-color var(--dur), background var(--dur);
}

.featured-card:hover .featured-metric {
  border-color: rgba(56,189,248,0.25);
  background: rgba(56,189,248,0.09);
}

.featured-metric-val {
  display: block;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.featured-metric-label {
  font-size: 10px;
  color: var(--t3);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  white-space: nowrap;
}

.featured-bg-text {
  position: absolute;
  right: -16px;
  bottom: -28px;
  font-size: 140px;
  font-weight: 900;
  color: rgba(56,189,248,0.025);
  pointer-events: none;
  user-select: none;
  letter-spacing: -6px;
  white-space: nowrap;
  line-height: 1;
}

/* Project grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.project-card {
  position: relative;
  padding: 26px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  cursor: default;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  will-change: transform;
  overflow: hidden;
}

/* Card thumbnail canvas */
.card-thumb {
  display: block;
  width: calc(100% + 48px);
  height: 130px;
  margin: -26px -24px 20px;
  background: #060b16;
  border-radius: var(--r) var(--r) 0 0;
  flex-shrink: 0;
}

/* Mouse-tracked spotlight glow */
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at var(--mx, 50%) var(--my, 50%),
    rgba(56,189,248,0.08), transparent 55%
  );
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.project-card:hover::before { opacity: 1; }

.project-card:hover {
  border-color: rgba(56,189,248,0.22);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

/* Category badges */
.project-cat {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  margin-bottom: 16px;
}

.cat-eng {
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.22);
  color: var(--blue);
}

.cat-ml {
  background: rgba(168,85,247,0.1);
  border: 1px solid rgba(168,85,247,0.24);
  color: #c084fc;
}

.cat-analytics {
  background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.24);
  color: var(--cyan);
}

.project-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.3;
}

.project-desc {
  font-size: 13px;
  color: var(--t2);
  line-height: 1.68;
  margin-bottom: 18px;
}

.project-metric {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.project-metric::before { content: '↑'; font-size: 13px; }

.project-metric.metric-ml { color: #c084fc; }
.project-metric.metric-ml::before { content: '⚡'; font-size: 11px; }

/* Projects responsive */
@media (max-width: 900px) {
  .project-grid     { grid-template-columns: repeat(2, 1fr); }
  .featured-card    { padding: 30px 28px; }
  .featured-metrics { gap: 10px; }
  .featured-metric  { min-width: 80px; }
}

@media (max-width: 640px) {
  .project-grid  { grid-template-columns: 1fr; }
  .featured-card { padding: 24px 20px; }
  .featured-bg-text { font-size: 80px; }
  .pub-card { padding: 28px 20px; }
  .pub-metrics { gap: 24px; flex-wrap: wrap; }
  .pub-footer { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   CASE STUDY BUTTON (on project cards)
   ============================================================ */
.case-study-btn {
  margin-top: 14px;
  background: transparent;
  border: 1px solid rgba(56,189,248,0.3);
  color: var(--blue);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: background var(--dur), color var(--dur), border-color var(--dur);
}
.case-study-btn:hover {
  background: var(--blue);
  color: var(--bg);
  border-color: var(--blue);
}

/* ============================================================
   SECTION SUB-HEADING
   ============================================================ */
.section-sub {
  font-size: 14px;
  color: var(--t2);
  max-width: 600px;
  margin: 8px auto 56px;
  text-align: center;
  line-height: 1.65;
}

/* ============================================================
   ARCHITECTURE SECTION
   ============================================================ */
#architecture { background: var(--bg); }

.arch-jc-link {
  color: var(--blue);
  text-decoration: none;
  font-weight: 500;
  white-space: nowrap;
  border-bottom: 1px solid rgba(56,189,248,0.3);
  transition: border-color var(--dur), color var(--dur);
}
.arch-jc-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.arch-wrap {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  background: rgba(255,255,255,0.02);
}

#archCanvas {
  display: block;
  width: 100%;
  height: 420px;
  cursor: pointer;
}

.arch-panel {
  position: absolute;
  top: 0; right: 0;
  width: 300px;
  height: 100%;
  background: rgba(8,13,26,0.96);
  backdrop-filter: blur(12px);
  border-left: 1px solid var(--border);
  padding: 28px 24px;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto;
}
.arch-panel.open { transform: translateX(0); }

.arch-panel-close {
  position: absolute;
  top: 12px; right: 14px;
  background: none;
  border: none;
  color: var(--t3);
  font-size: 16px;
  cursor: pointer;
  line-height: 1;
}
.arch-panel-close:hover { color: var(--t1); }

.arch-panel-body h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--t1);
  margin-bottom: 6px;
}
.arch-panel-body .arch-why {
  font-size: 13px;
  color: var(--t2);
  line-height: 1.65;
  margin-bottom: 14px;
}
.arch-panel-body .arch-code {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
  background: rgba(6,182,212,0.07);
  border: 1px solid rgba(6,182,212,0.15);
  border-radius: var(--r-sm);
  padding: 10px 12px;
  margin-bottom: 14px;
  line-height: 1.6;
  white-space: pre;
}
.arch-panel-body .arch-metric {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--blue);
  background: rgba(56,189,248,0.07);
  border-radius: var(--r-sm);
  padding: 6px 10px;
}

@media (max-width: 640px) {
  #archCanvas { height: 520px; }
  .arch-panel { width: 100%; height: auto; top: auto; bottom: 0; transform: translateY(100%); border-left: none; border-top: 1px solid var(--border); }
  .arch-panel.open { transform: translateY(0); }
}

/* ============================================================
   SKILLS RADAR SECTION
   ============================================================ */
#skills-radar { background: var(--bg2); }

.radar-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

#radarCanvas {
  max-width: 500px;
  width: 100%;
  height: auto;
  display: block;
}

.radar-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 28px;
}

.radar-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--t2);
  font-family: var(--mono);
  cursor: default;
}

.radar-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.radar-tooltip {
  position: fixed;
  background: rgba(8,13,26,0.94);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 10px 14px;
  font-size: 12px;
  color: var(--t2);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s;
  max-width: 230px;
  line-height: 1.6;
  z-index: 100;
}
.radar-tooltip.visible { opacity: 1; }
.radar-tooltip strong { display: block; margin-bottom: 6px; font-size: 13px; }
.radar-tooltip span {
  display: inline-block;
  background: rgba(255,255,255,0.07);
  border-radius: 3px;
  padding: 1px 7px;
  margin: 2px 2px;
  font-size: 10px;
  color: var(--t2);
}

/* ============================================================
   TERMINAL OVERLAY
   ============================================================ */
#terminal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #020509;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease);
  font-family: 'JetBrains Mono', monospace;
}
#terminal-overlay.open {
  opacity: 1;
  pointer-events: all;
}
#terminal-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.08) 2px, rgba(0,0,0,0.08) 4px);
  pointer-events: none;
}

.term-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.term-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.term-title { font-size: 12px; color: rgba(255,255,255,0.35); margin: 0 auto; }
.term-close { background: none; border: none; color: rgba(255,255,255,0.3); font-size: 14px; cursor: pointer; margin-left: 4px; }
.term-close:hover { color: #fff; }

.term-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  font-size: 13px;
  line-height: 1.65;
  color: #a3e8b0;
}
.term-body::-webkit-scrollbar { width: 4px; }
.term-body::-webkit-scrollbar-track { background: transparent; }
.term-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.term-line { margin: 0; white-space: pre-wrap; word-break: break-all; }
.term-line.cmd   { color: #38bdf8; }
.term-line.out   { color: #a3e8b0; }
.term-line.dim   { color: rgba(163,232,176,0.45); }
.term-line.err   { color: #f87171; }
.term-line.blank { height: 6px; }

.term-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
  background: rgba(255,255,255,0.02);
}
.term-prompt { font-size: 13px; color: #38bdf8; white-space: nowrap; flex-shrink: 0; }
.term-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: #f1f5f9;
  caret-color: #38bdf8;
}

/* ============================================================
   MODAL OVERLAY
   ============================================================ */
#modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(8,13,26,0.88);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}
#modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-close {
  position: fixed;
  top: 20px; right: 24px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  width: 36px; height: 36px;
  color: var(--t1);
  font-size: 16px;
  cursor: pointer;
  z-index: 2;
  transition: background var(--dur);
}
.modal-close:hover { background: rgba(255,255,255,0.14); }

.modal-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r) var(--r) 0 0;
  width: 100%;
  max-width: 860px;
  max-height: 88vh;
  overflow-y: auto;
  padding: 40px 48px 48px;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}
#modal-overlay.open .modal-card { transform: translateY(0); }

.modal-card::-webkit-scrollbar { width: 4px; }
.modal-card::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.modal-section { margin-bottom: 32px; }
.modal-section h4 {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
}
.modal-section p { font-size: 14px; color: var(--t2); line-height: 1.7; }
.modal-title { font-size: clamp(20px,3vw,28px); font-weight: 800; color: var(--t1); margin-bottom: 8px; letter-spacing: -0.5px; }
.modal-cat { font-size: 12px; font-family: var(--mono); color: var(--blue); margin-bottom: 28px; display: block; }

.modal-arch {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding: 20px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
}
.modal-arch-node {
  background: rgba(56,189,248,0.08);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: var(--r-sm);
  padding: 6px 12px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--blue);
  white-space: nowrap;
}
.modal-arch-arrow { color: var(--t3); font-size: 14px; }

.modal-bars { display: flex; flex-direction: column; gap: 14px; }
.modal-bar-row { display: flex; flex-direction: column; gap: 5px; }
.modal-bar-label { font-size: 12px; color: var(--t2); display: flex; justify-content: space-between; }
.modal-bar-label span { font-family: var(--mono); color: var(--blue); }
.modal-bar-track { height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; overflow: hidden; }
.modal-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--grad);
  width: 0%;
  transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
}

/* Design decisions */
.modal-decisions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-decision {
  padding: 13px 16px;
  background: rgba(56, 189, 248, 0.04);
  border: 1px solid rgba(56, 189, 248, 0.12);
  border-left: 3px solid rgba(56, 189, 248, 0.45);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.modal-decision-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 5px;
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

.modal-decision-body {
  font-size: 13px;
  color: var(--t2);
  line-height: 1.65;
}

/* Schema / data model */
.modal-schema-badge {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--t3);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 2px 8px;
  margin-left: 8px;
  font-weight: 400;
  vertical-align: middle;
}

.modal-schema {
  background: rgba(0,0,0,0.38);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 16px;
  overflow-x: auto;
  margin: 0;
}

.modal-schema code {
  font-family: var(--mono);
  font-size: 11.5px;
  color: rgba(148,163,184,0.9);
  line-height: 1.65;
  white-space: pre;
}

/* Key engineering insight */
.modal-lesson {
  background: rgba(168,85,247,0.05);
  border: 1px solid rgba(168,85,247,0.18);
  border-radius: var(--r-sm);
  padding: 18px 20px;
}

.modal-lesson h4 { color: #c084fc !important; border-color: rgba(168,85,247,0.2) !important; }
.modal-lesson p  { font-size: 13.5px; line-height: 1.7; color: var(--t2); }

@media (max-width: 640px) {
  .modal-card { padding: 28px 20px 36px; max-height: 92vh; }
  .modal-arch { gap: 4px; }
}

/* ============================================================
   PRETEXT FEATURES — streaming abstract, scan-line bullets,
   redaction bars, canvas tooltip (no extra DOM for tooltip)
   ============================================================ */

/* -- Streaming abstract (Feature 2) -- */
.stream-line {
  display: block;
  position: relative;
  line-height: inherit;
  color: var(--t2);
  font-size: inherit;
}

.stream-sweep {
  display: block;
  position: absolute;
  bottom: 1px;
  left: 0;
  height: 1.5px;
  background: linear-gradient(90deg, transparent, #38bdf8 20%, #38bdf8 80%, transparent);
  transform: scaleX(0);
  transform-origin: left center;
  border-radius: 1px;
  pointer-events: none;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0.7;
}

.stream-sweep.stream-sweep-go {
  transform: scaleX(1);
}

/* -- Scan-line bullets (Feature 3) -- */
.scan-bar {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #38bdf8 30%, #06b6d4 70%, transparent);
  pointer-events: none;
  z-index: 2;
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.6);
}

.tl-bullets li.scan-dim {
  color: rgba(148, 163, 184, 0.18);
  transition: color 0.35s ease;
}

.tl-bullets li.scan-lit {
  color: var(--t2);
  transition: color 0.35s ease;
}

/* -- Redaction bars (Feature 4) -- */
.redact-bar {
  display: inline-block;
  position: absolute;
  left: 0;
  top: 50%;
  height: 110%;
  transform: translateY(-50%);
  background: #080d1a;
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 2px;
  pointer-events: none;
  z-index: 1;
}

/* Mouse ambient glow */
.mouse-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56,189,248,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  top: 50%;
  left: 50%;
  will-change: transform;
}