/* Shared design system for davidmilov.com (home, translator, research). */
/* ═══════════════════════════════════════════════════════════════════════
   DESIGN SYSTEM — dark, technical, mobile-first
   ═══════════════════════════════════════════════════════════════════════ */
:root {
  --bg:          #06080b;
  --bg2:         #0c1016;   /* surface */
  --bg3:         #121821;   /* raised surface */
  --border:      rgba(148, 163, 184, 0.12);
  --border-hi:   rgba(148, 163, 184, 0.24);
  --green:       #22d38a;   /* primary accent */
  --green-hi:    #4ade9b;
  --green-dim:   rgba(34, 211, 138, 0.12);
  --green-line:  rgba(34, 211, 138, 0.32);
  --cyan:        #38bdf8;
  --red:         #f43f5e;
  --red-hi:      #fb7185;
  --amber:       #fbbf24;
  --text:        #c9d2dc;
  --text-hi:     #f3f6f9;
  --text-dim:    #8591a0;
  --text-faint:  #5f6977;
  --grad:        linear-gradient(120deg, #22d38a 0%, #38bdf8 100%);
  --on-accent:   #03140c;
  --radius:      16px;
  --radius-sm:   10px;
  --sans:        'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --display:     'Space Grotesk', 'Inter', system-ui, sans-serif;
  --mono:        'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  --nav-h:       64px;
  --safe-top:    env(safe-area-inset-top, 0px);
  --pad:         clamp(1.1rem, 4vw, 2.5rem);
  --max:         1200px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-h) + var(--safe-top) + 16px);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;
}

/* Dot grid + soft accent glow, behind everything, never over text. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image: radial-gradient(rgba(148, 163, 184, 0.11) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 25%, transparent 80%);
          mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 25%, transparent 80%);
}
body::after {
  content: '';
  position: fixed;
  left: -10%; right: -10%; top: -25vh;
  height: 75vh;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(40% 50% at 25% 50%, rgba(34, 211, 138, 0.13), transparent 70%),
    radial-gradient(35% 45% at 78% 40%, rgba(56, 189, 248, 0.10), transparent 70%);
  filter: blur(20px);
}

::selection { background: rgba(34, 211, 138, 0.3); color: #fff; }
a { color: inherit; }
strong { color: var(--text-hi); font-weight: 600; }
iframe { max-width: 100%; }
button { font: inherit; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 6px; }

/* ─── NAV ─────────────────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: calc(var(--nav-h) + var(--safe-top));
  padding: var(--safe-top) var(--pad) 0;
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(6, 8, 11, 0.72);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
          backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-hi);
  text-decoration: none;
  white-space: nowrap;
}
.nav-logo::before {
  content: '>_';
  display: grid;
  place-items: center;
  width: 30px; height: 30px;
  border-radius: 9px;
  background: var(--grad);
  color: var(--on-accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0;
  box-shadow: 0 6px 18px -8px rgba(34, 211, 138, 0.8);
}
.nav-logo span { color: var(--red-hi); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  list-style: none;
  margin-left: auto;
}
.nav-links a {
  display: block;
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text-hi); background: rgba(148, 163, 184, 0.08); }
.nav-links a.active { color: var(--green); background: var(--green-dim); }

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.status-dot {
  flex: 0 0 auto;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34, 211, 138, 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(34, 211, 138, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 138, 0); }
}

/* Mobile-only quick link + hamburger (hidden on desktop). */
.nav-cta {
  display: none;
  align-items: center;
  gap: 0.4rem;
  height: 40px;
  padding: 0 0.9rem;
  margin-left: auto;
  border-radius: 10px;
  background: var(--grad);
  color: var(--on-accent);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}
.nav-cta.active { box-shadow: 0 0 0 2px rgba(34, 211, 138, 0.35); }

.nav-toggle {
  display: none;
  flex: 0 0 auto;
  width: 42px; height: 42px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 10px;
  border: 1px solid var(--border-hi);
  background: rgba(148, 163, 184, 0.06);
  color: var(--text-hi);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.25s ease;
}
nav.open .nav-toggle span:first-child { transform: translateY(3.5px) rotate(45deg); }
nav.open .nav-toggle span:last-child  { transform: translateY(-3.5px) rotate(-45deg); }

/* ─── LAYOUT ──────────────────────────────────────────────────────────── */
section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 6.5rem) var(--pad);
}

.divider {
  border: none;
  height: 1px;
  max-width: var(--max);
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, var(--border-hi), transparent);
}

.section-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.9rem 1rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.section-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--green);
  padding: 0.28rem 0.6rem;
  border: 1px solid var(--green-line);
  border-radius: 6px;
  background: var(--green-dim);
}
.section-title {
  font-family: var(--display);
  font-size: clamp(1.75rem, 4.6vw, 2.75rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--text-hi);
}
.section-line {
  flex: 1;
  min-width: 32px;
  height: 1px;
  background: linear-gradient(90deg, var(--border-hi), transparent);
}

/* ─── BUTTONS ─────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0 1.4rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s, background 0.2s, border-color 0.2s, color 0.2s;
}
.btn-primary {
  background: var(--grad);
  color: var(--on-accent);
  box-shadow: 0 10px 28px -12px rgba(34, 211, 138, 0.7);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 34px -12px rgba(34, 211, 138, 0.85); }
.btn-ghost {
  background: rgba(148, 163, 184, 0.06);
  border-color: var(--border-hi);
  color: var(--text-hi);
}
.btn-ghost:hover { border-color: var(--green-line); color: var(--green-hi); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

/* ─── HERO ────────────────────────────────────────────────────────────── */
#hero {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 3rem;
  padding-top: calc(var(--nav-h) + var(--safe-top) + 3.5rem);
  padding-bottom: 4rem;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 35% 45%, #000 15%, transparent 72%);
          mask-image: radial-gradient(ellipse 70% 60% at 35% 45%, #000 15%, transparent 72%);
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  background: rgba(12, 16, 22, 0.75);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text);
}

.hero-name {
  font-family: var(--display);
  font-size: clamp(3rem, 11vw, 6.25rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--text-hi);
  margin-bottom: 1rem;
}
.hero-name .grad {
  background: var(--grad);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.hero-role {
  font-family: var(--mono);
  font-size: clamp(0.8rem, 2.2vw, 0.95rem);
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1.4rem;
}

.hero-subtitle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.hero-subtitle span {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--green);
  padding: 0.3rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--green-line);
  background: var(--green-dim);
}

.hero-bio {
  max-width: 52ch;
  margin: 1.6rem 0 2.2rem;
  font-size: clamp(1.02rem, 2.3vw, 1.15rem);
  color: var(--text);
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* Terminal status widget */
.hero-corner {
  width: 320px;
  border: 1px solid var(--border-hi);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 24, 33, 0.92), rgba(12, 16, 22, 0.92));
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
  font-family: var(--mono);
  font-size: 0.8rem;
  overflow: hidden;
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--border);
  background: rgba(148, 163, 184, 0.04);
}
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: #3a4350; }
.term-bar i:nth-child(1) { background: #f43f5e; }
.term-bar i:nth-child(2) { background: #fbbf24; }
.term-bar i:nth-child(3) { background: #22d38a; }
.term-bar em { margin-left: auto; font-style: normal; font-size: 0.7rem; color: var(--text-faint); }
.term-body { display: grid; gap: 0.5rem; padding: 1rem 1rem 1.15rem; color: var(--text); }
.term-body .p { color: var(--green); }
.term-body .k { display: inline-block; min-width: 84px; color: var(--text-faint); }

.hi { color: var(--green); }
.cursor {
  display: inline-block;
  width: 8px; height: 1em;
  vertical-align: -2px;
  background: var(--green);
  animation: blink 1.05s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ─── PROJECTS ────────────────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(360px, 100%), 1fr));
  gap: 1.25rem;
}
.project-card {
  position: relative;
  padding: clamp(1.35rem, 3vw, 1.85rem);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg3), var(--bg2));
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s, box-shadow 0.2s;
}
.project-card::before {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: var(--grad);
  opacity: 0.6;
}
.project-card:hover {
  transform: translateY(-3px);
  border-color: var(--green-line);
  box-shadow: 0 24px 48px -24px rgba(34, 211, 138, 0.3);
}
.project-card.active-dev::after {
  content: 'ACTIVE';
  position: absolute;
  top: 1.2rem; right: 1.2rem;
  padding: 0.22rem 0.55rem;
  border: 1px solid var(--green-line);
  border-radius: 6px;
  background: var(--green-dim);
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--green);
}
.project-id { font-family: var(--mono); font-size: 0.75rem; color: var(--text-faint); margin-bottom: 0.8rem; }
.project-name {
  font-family: var(--display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-hi);
  margin-bottom: 0.3rem;
}
.project-type { font-family: var(--mono); font-size: 0.78rem; color: var(--green); margin-bottom: 1rem; }
.project-desc { font-size: 0.97rem; color: var(--text); margin-bottom: 1.3rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.3rem; }
.tag {
  padding: 0.28rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(148, 163, 184, 0.05);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}
.tag.lang { color: var(--green); border-color: var(--green-line); background: var(--green-dim); }
.project-links { display: flex; gap: 1.4rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.project-links a {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.project-links a:hover { color: var(--green); }

/* ─── SKILLS ──────────────────────────────────────────────────────────── */
.skills-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
}
.skills-group { margin-bottom: 2.2rem; }
.skills-group-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.skills-group-title::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--grad);
}
.skill-item {
  display: grid;
  grid-template-columns: minmax(0, 175px) 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0.45rem 0;
}
.skill-name { font-size: 0.93rem; color: var(--text); }
.skill-bar-wrap { height: 6px; border-radius: 999px; background: rgba(148, 163, 184, 0.1); overflow: hidden; }
.skill-bar { height: 100%; border-radius: inherit; background: var(--grad); box-shadow: 0 0 12px rgba(34, 211, 138, 0.45); }

.certs-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.certs-grid > .cert-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.cert-card {
  padding: 1rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg2);
  transition: border-color 0.2s;
}
.cert-card:hover { border-color: var(--border-hi); }
.cert-name { font-weight: 600; font-size: 0.98rem; color: var(--text-hi); }
.cert-issuer { margin: 0.15rem 0 0.65rem; font-size: 0.82rem; color: var(--text-dim); }

.cert-status, .carousel-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.in-progress { color: var(--amber); background: rgba(251, 191, 36, 0.1); border: 1px solid rgba(251, 191, 36, 0.28); }
.earned { color: var(--green); background: var(--green-dim); border: 1px solid var(--green-line); }

/* ─── CERTIFICATIONS (native swipe carousel) ──────────────────────────── */
.carousel-wrap { display: flex; align-items: center; gap: 0.75rem; }
.carousel-track-wrap {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  padding: 0.35rem 0.1rem 0.6rem;
}
.carousel-track-wrap::-webkit-scrollbar { display: none; }
.carousel-track { display: flex; gap: 1rem; }
.carousel-card {
  flex: 0 0 calc((100% - 3rem) / 4);
  scroll-snap-align: start;
  padding: 1.5rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg3), var(--bg2));
  transition: border-color 0.2s, transform 0.2s;
}
.carousel-card:hover { border-color: var(--green-line); transform: translateY(-2px); }
.carousel-icon {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  margin-bottom: 1.1rem;
  border-radius: 11px;
  border: 1px solid var(--green-line);
  background: var(--green-dim);
  color: var(--green);
  font-size: 1.1rem;
}
.carousel-card:has(.in-progress) .carousel-icon {
  color: var(--amber);
  border-color: rgba(251, 191, 36, 0.28);
  background: rgba(251, 191, 36, 0.1);
}
.carousel-cert-name {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}
.carousel-issuer { margin: 0.15rem 0 0.9rem; font-size: 0.86rem; color: var(--text-dim); }
.carousel-btn {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-hi);
  background: var(--bg2);
  color: var(--text-hi);
  font-size: 1rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.carousel-btn:hover { border-color: var(--green); color: var(--green); background: var(--green-dim); }
.carousel-dots { display: flex; justify-content: center; gap: 0.5rem; margin-top: 1.5rem; }
.carousel-dot {
  width: 8px; height: 8px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.28);
  cursor: pointer;
  transition: width 0.25s, background 0.25s;
}
.carousel-dot.active { width: 26px; background: var(--green); }

/* ─── ABOUT ───────────────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.about-text p { max-width: 64ch; margin-bottom: 1.15rem; font-size: 1.03rem; color: var(--text); }
.intel-box {
  border: 1px solid var(--border-hi);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg3), var(--bg2));
  font-family: var(--mono);
  overflow: hidden;
}
.intel-box-title {
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--border);
  background: rgba(148, 163, 184, 0.04);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--green);
}
.intel-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.78rem 1.15rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}
.intel-row:last-child { border-bottom: none; }
.intel-key { color: var(--text-faint); letter-spacing: 0.06em; flex: 0 0 auto; }
.intel-val { color: var(--text-hi); text-align: right; }
.intel-val.green { color: var(--green); }

/* ─── CONTACT ─────────────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
  gap: 1rem;
}
.contact-card {
  position: relative;
  display: block;
  padding: 1.4rem 1.4rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg2);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}
a.contact-card:hover { border-color: var(--green-line); background: var(--bg3); transform: translateY(-2px); }
a.contact-card::after {
  content: '↗';
  position: absolute;
  top: 1.2rem; right: 1.3rem;
  color: var(--text-faint);
  transition: color 0.2s, transform 0.2s;
}
a.contact-card:hover::after { color: var(--green); transform: translate(2px, -2px); }
.contact-platform { margin-bottom: 0.6rem; font-family: var(--mono); font-size: 0.75rem; color: var(--green); }
.contact-handle { font-size: 1.02rem; font-weight: 600; color: var(--text-hi); word-break: break-word; }
.contact-note { margin-top: 0.25rem; font-size: 0.86rem; color: var(--text-dim); }

/* Email lock: "Deflection" (assets/email-gate.js) */
.email-gate .eg-body { margin-top: 0.9rem; display: grid; gap: 0.55rem; }
.eg-btn {
  justify-self: start; min-height: 44px; padding: 0.5rem 1.1rem;
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em;
  color: var(--green); background: var(--green-dim); border: 1px solid var(--green-line);
  border-radius: 999px; cursor: pointer; transition: background 0.15s, color 0.15s, opacity 0.15s;
}
.eg-btn:hover:not(:disabled) { color: var(--green-hi); background: rgba(34, 211, 138, 0.18); }
.eg-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.eg-ghost { color: var(--text-dim); background: transparent; border-color: var(--border-hi); }
.eg-msg { font-size: 0.84rem; color: var(--amber); }
.eg-link { color: var(--green); text-decoration: none; }
.eg-link:hover { text-decoration: underline; }
.email-gate.revealed { border-color: var(--green-line); }

.vault {
  margin: auto; inset: 0;                     /* the site's reset removes dialog centring */
  width: min(94vw, 440px); max-height: 94dvh; padding: 0; overflow: auto;
  color: var(--text); background: radial-gradient(120% 80% at 50% 0%, #0d1a16 0%, var(--bg) 60%);
  border: 1px solid var(--border-hi); border-radius: var(--radius);
  box-shadow: 0 40px 120px -40px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(34, 211, 138, 0.05);
}
.vault[open] { animation: vault-in 0.35s cubic-bezier(0.2, 0.7, 0.2, 1); }
.vault::backdrop { background: rgba(3, 5, 8, 0.78); backdrop-filter: blur(6px); }
@keyframes vault-in { from { opacity: 0; transform: translateY(12px) scale(0.98); } }
.vault-inner { position: relative; padding: 1.4rem 1.25rem 1.2rem; display: grid; gap: 0.9rem; }
.vault-close {
  position: absolute; top: 0.6rem; right: 0.6rem; width: 44px; height: 44px;
  color: var(--text-dim); background: transparent; border: 0; font-size: 1.5rem; cursor: pointer; border-radius: 50%;
}
.vault-close:hover { color: var(--text-hi); background: rgba(148, 163, 184, 0.08); }
.vault-head { display: flex; align-items: baseline; gap: 0.7rem; }
.vault-tag { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; color: var(--green); }
.vault-title { margin: 0; font-family: var(--display); font-size: 1.35rem; font-weight: 600; letter-spacing: 0.01em; color: var(--text-hi); }
.vault-prompt { margin: 0; font-size: 0.95rem; color: var(--text-dim); }
.vault-controls { display: flex; gap: 0.6rem; justify-content: flex-end; }
.vault-controls-hint { margin: -0.3rem 0 0; text-align: center; font-family: var(--mono); font-size: 0.68rem; color: var(--text-faint); }
.vault-msg { margin: 0; min-height: 1.2em; text-align: center; font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim); }
.vault-msg.warn { color: var(--amber); }
.vault-alt { margin: 0; text-align: center; font-size: 0.78rem; color: var(--text-faint); }
.vault-alt a { color: var(--text-dim); }
.vault-open { display: grid; justify-items: center; gap: 0.7rem; padding: 0.4rem 0 0.2rem; animation: vault-in 0.4s ease-out; }
.vault-open .eg-btn { justify-self: center; }
.vault-email { font-family: var(--mono); font-size: 1.02rem; color: var(--green-hi); text-decoration: none; word-break: break-all; text-align: center; }
.vault-email:hover { text-decoration: underline; }

/* grids */
.dg-wrap { position: relative; padding: 9px; }
.dg-main { width: min(100%, 330px); margin: 0 auto; padding: 12px; }
.dg { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; aspect-ratio: 1; }
.dg-main .dg { gap: 4px; touch-action: none; user-select: none; -webkit-user-select: none; }
.dc { display: block; aspect-ratio: 1; border-radius: 2px; background: rgba(148, 163, 184, 0.07); }
.dg-main .dc { border-radius: 6px; }
.dc-lit { background: var(--green); box-shadow: 0 0 6px rgba(34, 211, 138, 0.55); }
.dc-fixed { border-radius: 6px; }
.dc-given-on { background: linear-gradient(145deg, #e9eef3, #9fb0c0); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25); }
.dc-given-off { background: repeating-linear-gradient(135deg, #0b0f14 0 4px, #05070a 4px 8px); box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.08); }
.lg { display: inline-block; width: 10px; height: 10px; border-radius: 3px; vertical-align: -1px; }
.lg-on { background: linear-gradient(145deg, #e9eef3, #9fb0c0); }
.lg-off { background: repeating-linear-gradient(135deg, #1b222b 0 2px, #05070a 2px 4px); box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.25); }
.lg-slot { border: 1px dashed rgba(148, 163, 184, 0.6); }
.dg-spin { animation: settle 0.9s cubic-bezier(0.2, 0.7, 0.2, 1); }
@keyframes settle { 0% { transform: rotate(0); } 45% { transform: rotate(90deg) scale(0.96); } 100% { transform: rotate(0); } }
.dc-tap {
  padding: 0; border: 1px dashed rgba(148, 163, 184, 0.32); background: rgba(148, 163, 184, 0.06);
  cursor: pointer; transition: background 0.12s, box-shadow 0.2s, border-color 0.12s;
}
.dc-tap:hover { border-color: rgba(34, 211, 138, 0.35); }
.dc-tap:focus-visible { outline: 2px solid var(--cyan); outline-offset: 1px; }
.dc-tap.on { background: var(--green); border-style: solid; border-color: var(--green); box-shadow: 0 0 10px rgba(34, 211, 138, 0.55); }
.dc-tap.trace { animation: trace 0.6s ease-out forwards; }
@keyframes trace { 40% { background: #eafff5; box-shadow: 0 0 22px rgba(74, 222, 155, 0.95); } 100% { background: var(--green-hi); box-shadow: 0 0 14px rgba(74, 222, 155, 0.7); } }
.dg-wrong { animation: wrong 0.45s cubic-bezier(0.36, 0.07, 0.19, 0.97); }
.dg-wrong .dc-tap.on { animation: dim 0.9s ease-out; }
@keyframes wrong { 20%, 60% { transform: translateX(-5px); } 40%, 80% { transform: translateX(5px); } }
@keyframes dim { 30% { background: rgba(251, 191, 36, 0.55); box-shadow: none; } }
.vault.solved .dg-main { opacity: 0.9; }

@media (prefers-reduced-motion: reduce) {
  .vault[open], .vault-open, .dg-wrong, .dg-wrong .dc-tap.on, .dc-tap.trace, .dg-spin { animation: none; }
  .dc-tap.trace { background: var(--green-hi); }
}

/* ─── FOOTER ──────────────────────────────────────────────────────────── */
footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem var(--pad) calc(2rem + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}
footer .hi { color: var(--green); }

/* ─── VIEWS (portfolio ⇄ translator) ──────────────────────────────────── */
.view { animation: view-in 0.28s ease both; }
.view[hidden] { display: none; }
@keyframes view-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
#view-translator { padding-top: calc(var(--nav-h) + var(--safe-top)); }

/* ─── TRANSLATOR ──────────────────────────────────────────────────────── */
.tr-page-head { margin-bottom: 1.6rem; }
.tr-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 40px;
  padding: 0 0.95rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s, border-color 0.2s;
}
.tr-back:hover { color: var(--text-hi); border-color: var(--border-hi); }

.tr-panes { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.tr-pane {
  display: flex;
  flex-direction: column;
  min-height: 270px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg2);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.tr-pane:focus-within { border-color: var(--green-line); box-shadow: 0 0 0 4px rgba(34, 211, 138, 0.1); }
.tr-pane-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
}
.tr-sub { color: var(--text-faint); font-weight: 500; letter-spacing: 0.03em; text-transform: none; text-align: right; }
.tr-input, .tr-output {
  flex: 1;
  width: 100%;
  padding: 1.15rem;
  border: none;
  outline: none;
  resize: none;
  background: transparent;
  font-family: var(--sans);
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--text-hi);
}
.tr-input::placeholder { color: var(--text-faint); }
.tr-output { overflow-y: auto; white-space: pre-wrap; word-break: break-word; }
.tr-output.tr-empty { color: var(--text-faint); }
.tr-output .tr-gap, .tr-output .tr-untranslated { color: var(--amber); }
.tr-variant { display: flex; align-items: baseline; gap: 0.8rem; margin-bottom: 0.75rem; }
.tr-variant:last-child { margin-bottom: 0; }
.tr-reg {
  flex: 0 0 auto;
  min-width: 78px;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--green-line);
  border-radius: 6px;
  background: var(--green-dim);
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-align: center;
  text-transform: uppercase;
  color: var(--green);
}
.tr-vbux { color: var(--text-hi); }
.tr-pane-foot {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 54px;
  padding: 0.6rem 1.15rem;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-faint);
}
.tr-count { margin-left: auto; }
.tr-iconbtn {
  min-height: 36px;
  padding: 0 0.85rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: rgba(148, 163, 184, 0.05);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.tr-iconbtn:hover:not(:disabled) { color: var(--text-hi); border-color: var(--border-hi); }
.tr-iconbtn:disabled { opacity: 0.4; cursor: not-allowed; }

.tr-controls { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem; margin-top: 1.25rem; }
.tr-status { margin-left: auto; font-family: var(--mono); font-size: 0.75rem; color: var(--text-faint); }
.tr-spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(3, 20, 12, 0.25);
  border-top-color: var(--on-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.tr-badge {
  display: inline-flex;
  align-items: center;
  margin-right: 0.5rem;
  padding: 0.18rem 0.5rem;
  border: 1px solid;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.tr-badge.exact { color: var(--green); border-color: var(--green-line); background: var(--green-dim); }
.tr-badge.fuzzy, .tr-badge.compositional { color: var(--amber); border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.08); }
.tr-badge.grammar, .tr-badge.ai { color: var(--cyan); border-color: rgba(56, 189, 248, 0.35); background: rgba(56, 189, 248, 0.08); }
.tr-badge.none { color: var(--red-hi); border-color: rgba(244, 63, 94, 0.35); background: rgba(244, 63, 94, 0.08); }

.tr-note {
  margin-top: 1rem;
  padding: 0.95rem 1.15rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: 12px;
  background: var(--bg2);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-dim);
}
.tr-note strong { color: var(--text-hi); }
.tr-note.warn { border-left-color: var(--amber); }
.tr-note.miss { border-left-color: var(--red); }
.tr-note ul { margin: 0.5rem 0 0 1.1rem; }
.tr-note code, .tr-explain code {
  padding: 0.05rem 0.35rem;
  border-radius: 4px;
  background: var(--green-dim);
  font-family: var(--mono);
  font-size: 0.86em;
  color: var(--green-hi);
}

.tr-explain {
  margin-top: 1.4rem;
  padding: 1.25rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg2);
}
.tr-explain[hidden] { display: none; }
.tr-explain-head {
  margin-bottom: 0.75rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
}
.tr-explain-text { margin-bottom: 0.9rem; font-size: 0.96rem; color: var(--text); }
.tr-steps { display: grid; gap: 0.3rem; margin: 0 0 1rem 1.15rem; font-size: 0.93rem; color: var(--text); }
.tr-gloss { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tr-gloss-item {
  display: inline-flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg3);
}
.tr-gloss-en { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-faint); }
.tr-gloss-bux { font-size: 0.96rem; color: var(--text-hi); }
.tr-gloss-item.miss .tr-gloss-bux { color: var(--amber); }
.tr-disclaimer { margin-top: 1.5rem; font-size: 0.82rem; line-height: 1.6; color: var(--text-faint); }

/* ═══ RESPONSIVE ═══════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .carousel-card { flex-basis: calc((100% - 2rem) / 3); }
  #hero { grid-template-columns: 1fr; }
  .hero-corner { width: 100%; max-width: 440px; }
}

@media (max-width: 860px) {
  .nav-status { display: none; }
  .nav-cta, .nav-toggle { display: inline-flex; }
  .nav-cta { margin-left: auto; }
  .nav-links {
    position: fixed;
    top: calc(var(--nav-h) + var(--safe-top));
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    margin: 0;
    padding: 0.75rem var(--pad) 1.25rem;
    background: #080b0f;      /* solid: a blurred panel nested in the blurred nav can't sample the page */
    border-bottom: 1px solid var(--border);
    box-shadow: 0 24px 40px -20px rgba(0, 0, 0, 0.9);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  }
  nav.open .nav-links { opacity: 1; visibility: visible; transform: none; pointer-events: auto; }
  .nav-links a { padding: 0.8rem 1rem; font-size: 1.02rem; border-radius: 10px; }
  .nav-links li + li { border-top: 1px solid var(--border); padding-top: 0.2rem; }

  .skills-layout, .about-grid { grid-template-columns: 1fr; }
  .carousel-card { flex-basis: calc((100% - 1rem) / 2); }
  .carousel-btn { display: none; }      /* swipe on touch devices */
}

@media (max-width: 640px) {
  :root { --nav-h: 60px; }
  body { font-size: 15.5px; }
  #hero { min-height: auto; padding-top: calc(var(--nav-h) + var(--safe-top) + 2.5rem); gap: 2.25rem; }
  .hero-cta .btn { flex: 1 1 auto; }
  .hero-cta .btn-primary { flex-basis: 100%; }
  .hero-corner { max-width: none; }
  .skill-item { grid-template-columns: minmax(0, 132px) 1fr; gap: 0.75rem; }
  .skill-name { font-size: 0.86rem; }
  .carousel-card { flex-basis: 78%; }   /* peek the next card */
  .tr-panes { grid-template-columns: 1fr; }
  .tr-pane { min-height: 0; }
  .tr-input { min-height: 140px; }
  .tr-output { min-height: 110px; }
  .tr-input, .tr-output { font-size: 1.08rem; }
  .tr-controls .btn { width: 100%; }
  .tr-status { margin-left: 0; width: 100%; text-align: center; }
  footer { flex-direction: column; text-align: center; align-items: center; }
}

@media (max-width: 380px) {
  .nav-logo { font-size: 0.82rem; }
  .nav-cta { padding: 0 0.7rem; }
  .certs-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html, .carousel-track-wrap { scroll-behavior: auto; }
}

/* ─── RESEARCH (listing + articles) ──────────────────────────────────── */
.page { padding-top: calc(var(--nav-h) + var(--safe-top)); min-height: 70vh; }
.page-intro { max-width: 62ch; margin: -1.25rem 0 2.5rem; font-size: 1.05rem; color: var(--text-dim); }

.post-list { display: grid; gap: 1rem; }
.post-card {
  position: relative;
  display: block;
  padding: clamp(1.35rem, 3vw, 1.85rem);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg3), var(--bg2));
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s, box-shadow 0.2s;
}
.post-card:hover { transform: translateY(-2px); border-color: var(--green-line); box-shadow: 0 24px 48px -24px rgba(34, 211, 138, 0.3); }
.post-card::after {
  content: '→';
  position: absolute;
  top: clamp(1.35rem, 3vw, 1.85rem); right: clamp(1.35rem, 3vw, 1.85rem);
  font-family: var(--mono);
  color: var(--text-faint);
  transition: color 0.2s, transform 0.2s;
}
.post-card:hover::after { color: var(--green); transform: translateX(3px); }
.post-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  margin-bottom: 0.65rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}
.post-kicker .hi { color: var(--green); }
.post-card h3 {
  margin-bottom: 0.55rem;
  padding-right: 2rem;
  font-family: var(--display);
  font-size: clamp(1.3rem, 3.2vw, 1.65rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-hi);
}
.post-card p { max-width: 70ch; margin-bottom: 1.1rem; font-size: 0.98rem; color: var(--text); }
.post-card .project-tags { margin-bottom: 0; }

.article { max-width: 760px; margin: 0 auto; padding: clamp(2.25rem, 6vw, 3.5rem) var(--pad) clamp(4rem, 8vw, 6rem); }
.crumbs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.75rem; font-family: var(--mono); font-size: 0.78rem; color: var(--text-faint); }
.crumbs a { color: var(--text-dim); text-decoration: none; }
.crumbs a:hover { color: var(--green); }
.article h1 {
  margin: 0.9rem 0 1.1rem;
  font-family: var(--display);
  font-size: clamp(2rem, 6.4vw, 3.15rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-hi);
}
.article .lede { margin-bottom: 1.5rem; font-size: clamp(1.05rem, 2.4vw, 1.2rem); color: var(--text); }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.1rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--text-dim);
}
.notice {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2.25rem;
  padding: 1rem 1.15rem;
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: 12px;
  background: rgba(251, 191, 36, 0.07);
  font-size: 0.93rem;
  color: var(--text);
}
.notice b { color: var(--amber); font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em; flex: 0 0 auto; padding-top: 0.12rem; }

.prose h2 {
  margin: 2.5rem 0 0.85rem;
  font-family: var(--display);
  font-size: clamp(1.3rem, 3.3vw, 1.6rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--text-hi);
  scroll-margin-top: calc(var(--nav-h) + var(--safe-top) + 20px);
}
.prose h2::before { content: '## '; font-family: var(--mono); font-size: 0.78em; color: var(--green); }
.prose p { margin-bottom: 1.15rem; font-size: 1.06rem; line-height: 1.8; color: var(--text); }
.prose ul, .prose ol { margin: 0 0 1.3rem 1.3rem; }
.prose li { margin-bottom: 0.45rem; padding-left: 0.2rem; font-size: 1.04rem; line-height: 1.7; color: var(--text); }
.prose li::marker { color: var(--green); font-family: var(--mono); }
.prose code { padding: 0.1rem 0.38rem; border-radius: 5px; background: rgba(148, 163, 184, 0.1); font-family: var(--mono); font-size: 0.88em; color: var(--text-hi); }

.term {
  margin: 1.4rem 0 1.6rem;
  border: 1px solid var(--border-hi);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 24, 33, 0.92), rgba(12, 16, 22, 0.92));
  font-family: var(--mono);
  font-size: 0.84rem;
  overflow: hidden;
}
.term .term-body { gap: 0.45rem; }
.term .k { min-width: 110px; }

.article-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
  .prose p, .prose li { font-size: 1rem; }
  .term .k { min-width: 86px; }
  .article-foot .btn { flex: 1 1 100%; }
}
.post-card code { font-family: var(--mono); font-size: 0.88em; color: var(--text-hi); }

/* ── Translator app (React, translator/app/) ─────────────────────────────── */
.tr-tabs { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
.tr-tabs > button, .tr-script > button {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.03em; color: var(--text-dim);
  background: transparent; border: 1px solid var(--border); border-radius: 999px; padding: 0.45rem 0.9rem; cursor: pointer;
  min-height: 36px; transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.tr-tabs > button:hover, .tr-script > button:hover { color: var(--text-hi); border-color: var(--border-hi); }
.tr-tabs > button.active, .tr-script > button.active { color: var(--green); border-color: var(--green-line); background: var(--green-dim); }
.tr-script { display: inline-flex; gap: 0.35rem; margin-left: auto; }
.tr-conf { margin-left: 0.5rem; font-family: var(--mono); font-size: 0.72rem; color: var(--text-faint); }
.tr-rows { font-family: var(--mono); font-size: 0.68rem; color: var(--text-faint); white-space: nowrap; }
.tr-alt { margin-right: 0.75rem; }
.tr-alt em, .tr-entry em { color: var(--text-faint); font-style: normal; font-size: 0.85em; }
.tr-sub-out { margin-top: 0.4rem; color: var(--text-dim); font-size: 0.9rem; }
.tr-explain details > summary { cursor: pointer; list-style: none; }
.tr-explain details > summary::-webkit-details-marker { display: none; }
.tr-explain details > summary::after { content: ' +'; color: var(--text-faint); }
.tr-explain details[open] > summary::after { content: ' −'; }
.tr-explain ol.tr-steps { list-style: decimal; }
.tr-related ul, .tr-entries { margin: 0 0 0.6rem 1.1rem; display: grid; gap: 0.35rem; font-size: 0.93rem; }
.tr-entries { list-style: none; margin-left: 0; }
.tr-entry { padding: 0.55rem 0.7rem; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.tr-entry strong { color: var(--text-hi); }
.tr-entry-sub { margin-top: 0.25rem; font-size: 0.86rem; color: var(--text-dim); }
.tr-pos { font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--cyan); }
.tr-breakdown {
  margin-top: 1rem;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg2);
}
.tr-words { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tr-word {
  display: inline-flex; flex-direction: column; align-items: flex-start; gap: 0.1rem;
  position: relative; min-height: 44px; padding: 0.45rem 0.75rem;
  border: 1px solid var(--border); border-radius: 10px; background: transparent;
  font: inherit; color: var(--text); text-align: left; cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.tr-word:hover, .tr-word:focus-visible, .tr-word.open { border-color: var(--green-line); background: var(--green-dim); }
.tr-word.unknown { border-style: dashed; border-color: rgba(244, 63, 94, 0.45); }
.tr-word.unknown .tr-word-bux { color: var(--red-hi); }
.tr-word-bux { font-family: var(--mono); font-size: 0.92rem; font-weight: 600; color: var(--green-hi); }
.tr-word-gloss { font-size: 0.82rem; color: var(--text-dim); }
.tr-word-tags { font-family: var(--mono); font-size: 0.68rem; color: var(--cyan); }
.tr-word-more { position: absolute; top: 0.2rem; right: 0.4rem; font-family: var(--mono); font-size: 0.62rem; color: var(--text-faint); }
.tr-word:has(.tr-word-more) { padding-right: 1.6rem; }
.tr-reg-tag {
  display: inline-block; margin-left: 0.35rem; padding: 0 0.35rem; border: 1px solid rgba(251, 191, 36, 0.35); border-radius: 5px;
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.04em; color: var(--amber);
}
.tr-word .tr-reg-tag { margin-left: 0; }
.tr-word-detail { margin-top: 0.8rem; display: grid; gap: 0.6rem; font-size: 0.92rem; }
.tr-word-detail code, .tr-breakdown code {
  padding: 0.05rem 0.35rem; border-radius: 4px; background: var(--green-dim); font-family: var(--mono); font-size: 0.86em; color: var(--green-hi);
}
.tr-part { display: inline-block; margin: 0.1rem 0.7rem 0.1rem 0; }
.tr-alts-head { margin-bottom: 0.35rem; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-faint); }
.tr-alts .tr-entries { margin-bottom: 0; }
.tr-low { display: grid; gap: 0.45rem; }
.tr-low-head { font-family: var(--mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--amber); }
.tr-draft { padding-left: 0.75rem; border-left: 2px dashed rgba(251, 191, 36, 0.5); color: var(--text-dim); font-style: italic; }
.tr-low-foot { font-size: 0.8rem; color: var(--text-faint); }
.tr-similar {
  margin-top: 1rem;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan);
  border-radius: 12px;
  background: var(--bg2);
}
.tr-similar-text { margin: 0 0 0.75rem; font-size: 0.9rem; line-height: 1.6; color: var(--text-dim); }
.tr-similar-fine { margin: 0.6rem 0 0; font-size: 0.8rem; color: var(--text-faint); }
.tr-similar-go { min-height: 40px; }
.tr-similar-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.45rem; margin-top: 0.55rem; }
.tr-similar-word { min-width: 5.5rem; font-family: var(--mono); font-size: 0.8rem; color: var(--text-hi); }
.tr-similar-word::after { content: ' →'; color: var(--text-faint); }
.tr-similar-none { font-size: 0.85rem; color: var(--text-faint); }
.tr-chip {
  display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 0.15rem 0.4rem;
  min-height: 40px; padding: 0.4rem 0.75rem;
  border: 1px solid var(--border); border-radius: 10px; background: transparent;
  font: inherit; font-size: 0.88rem; color: var(--text); text-align: left; cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.tr-chip:hover, .tr-chip:focus-visible { border-color: var(--cyan); background: rgba(56, 189, 248, 0.06); }
.tr-chip strong { color: var(--text-hi); font-weight: 600; }
.tr-chip code { padding: 0.05rem 0.35rem; border-radius: 4px; background: var(--green-dim); font-family: var(--mono); font-size: 0.84em; color: var(--green-hi); }
.tr-chip em { flex-basis: 100%; font-style: normal; font-size: 0.75rem; color: var(--text-faint); }
.tr-linkbtn { padding: 0; border: 0; background: none; font: inherit; color: var(--cyan); text-decoration: underline; cursor: pointer; }
.tr-spinner-dim { width: 12px; height: 12px; margin-right: 0.4rem; vertical-align: -1px; border-color: var(--border); border-top-color: var(--cyan); }
.tr-noscript { padding: 1rem; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-dim); }
@media (max-width: 640px) {
  .tr-script { margin-left: 0; }
  .tr-tabs > button { flex: 1 1 auto; }
}