/* ─────────────────────────────────────────────
   Reset + base
───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

/* ─────────────────────────────────────────────
   Layout
───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

section { position: relative; }

/* ─────────────────────────────────────────────
   Nav
───────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(19, 20, 26, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: 56px;
  display: flex;
  align-items: center;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 32px;
}

.nav__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .01em;
}

.nav__links {
  display: flex;
  gap: 28px;
}

.nav__links a {
  font-size: 13px;
  color: var(--text-dim);
  transition: color var(--t-fast);
}
.nav__links a:hover {
  color: var(--text);
  text-decoration: none;
}

/* ─────────────────────────────────────────────
   Hero
───────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 56px 32px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(224,25,107,.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-xs);
  margin-bottom: 28px;
}

.hero__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .04em;
  margin-bottom: 4px;
}

.hero__tagline-wrap {
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 40px;
}

.hero__tagline {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  letter-spacing: -.02em;
  max-width: 880px;
  text-wrap: balance;
  transition: opacity var(--t-base);
}

.hero__tagline[hidden] { display: none; }

.hero__role-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 52px;
  flex-wrap: wrap;
}

.hero__role-tab {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text-dim);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 20px;
  cursor: pointer;
  transition: all var(--t-fast);
}
.hero__role-tab:hover {
  border-color: var(--border-light);
  color: var(--text);
}
.hero__role-tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.hero__cta {
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: .04em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero__scroll-arrow {
  width: 28px; height: 28px;
  border: 1.5px solid var(--border-light);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  font-size: 12px;
  animation: bounce 2.4s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

/* ─────────────────────────────────────────────
   Graph section
───────────────────────────────────────────── */
.section-graph {
  padding: 0 0 80px;
}

.section-graph__label {
  padding: 40px 32px 20px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-xs);
}

.graph-wrap {
  width: 100%;
  padding: 0 24px 32px;
  overflow: visible;
}

.graph-canvas {
  position: relative;
  width: 100%;
  background-image:
    radial-gradient(circle, rgba(58,62,86,.55) 1px, transparent 1px);
  background-size: 28px 28px;
  border-radius: 12px;
}

.graph-svg {
  position: absolute;
  top: 0; left: 0;
  pointer-events: none;
  overflow: visible;
  z-index: 0;
}

/* ── Column grid inside canvas ── */
.gcols {
  display: grid;
  grid-template-columns: 250px 1fr 1fr 185px;
  gap: 20px;
  padding: 28px 24px 36px;
  position: relative;
  z-index: 1;
}

.gcol {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (max-width: 1000px) {
  .gcols { grid-template-columns: 220px 1fr 1fr 160px; gap: 14px; }
}
@media (max-width: 768px) {
  .gcols { grid-template-columns: 1fr; padding: 20px 16px; }
}

/* ─────────────────────────────────────────────
   Graph edges (SVG paths)
───────────────────────────────────────────── */
.gedge {
  fill: none;
  stroke: var(--border-light);
  stroke-width: 1.5px;
  opacity: .30;
  transition: opacity var(--t-slow), stroke var(--t-slow), stroke-width var(--t-base);
}
.gedge.is-active {
  opacity: .75;
  stroke-width: 2px;
}
.gedge.is-dimmed {
  opacity: .04;
}
.gedge[data-cat="teal"].is-active   { stroke: var(--c-teal);   }
.gedge[data-cat="coral"].is-active  { stroke: var(--c-coral);  }
.gedge[data-cat="purple"].is-active { stroke: var(--c-purple); }
.gedge[data-cat="gray"]             { opacity: .16; }
.gedge[data-cat="gray"].is-active   { stroke: var(--c-gray); opacity: .35; }

/* ─────────────────────────────────────────────
   Graph nodes
───────────────────────────────────────────── */
.gnode {
  position: relative;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: visible;
  opacity: .70;
  transition:
    opacity var(--t-slow),
    border-color var(--t-base),
    box-shadow var(--t-slow);
}
.gnode:hover:not(.gnode--trigger) {
  border-color: var(--border-light);
  z-index: 10;
}

/* category accent stripe */
.gnode[data-cat="teal"]   { border-left: 3px solid var(--c-teal);   }
.gnode[data-cat="coral"]  { border-left: 3px solid var(--c-coral);  }
.gnode[data-cat="purple"] { border-left: 3px solid var(--c-purple); }
.gnode[data-cat="gray"]   { border-left: 3px solid var(--c-gray);   }

/* active */
.gnode.is-active { opacity: 1; }
.gnode.is-dimmed { opacity: .16; pointer-events: none; }

/* always-open pet node: stays readable even when dimmed */
.gnode[data-always-open].is-dimmed { opacity: .55; }

/* ── Node body ── */
.gnode__body { padding: 11px 13px 13px; }

.gnode__cat {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 3px;
}
.gnode[data-cat="teal"]   .gnode__cat { color: var(--c-teal);   }
.gnode[data-cat="coral"]  .gnode__cat { color: var(--c-coral);  }
.gnode[data-cat="purple"] .gnode__cat { color: var(--c-purple); }
.gnode[data-cat="gray"]   .gnode__cat { color: var(--c-gray);   }

.gnode__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
}

.gnode__meta {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 3px;
  line-height: 1.4;
}

/* ── Expanded content ── */
.gnode__expanded {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition:
    max-height var(--t-slow),
    opacity var(--t-base) 80ms;
}

.gnode.is-active .gnode__expanded,
.gnode[data-always-open] .gnode__expanded {
  max-height: 500px;
  opacity: 1;
}

.gnode__bullets {
  margin: 9px 0 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.gnode__bullets li {
  font-size: 13px;
  color: var(--text);
  padding-left: 14px;
  position: relative;
  line-height: 1.45;
}
.gnode__bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-xs);
}

.gnode__result {
  font-size: 11px;
  color: var(--text-dim);
  background: var(--bg-raised);
  border-left: 2px solid var(--c-teal);
  padding: 5px 8px;
  border-radius: 0 4px 4px 0;
  margin: 6px 0 8px;
  line-height: 1.4;
}

.gnode__link {
  display: inline-block;
  margin-top: 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .02em;
}
.gnode__link:hover { text-decoration: underline; }

/* badge row */
.gnode__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 7px 0 6px;
}
.badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-radius: 3px;
  padding: 2px 6px;
}
.badge--green   { background: var(--s-green);   color: var(--s-green-fg);   }
.badge--red     { background: var(--s-red);     color: var(--s-red-fg);     }
.badge--amber   { background: var(--s-amber);   color: var(--s-amber-fg);   }
.badge--neutral { background: var(--s-neutral); color: var(--s-neutral-fg); }

/* live counter */
.gnode__counter {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 8px 0 4px;
  padding: 8px 10px;
  background: var(--c-purple-dim);
  border: 1px solid rgba(107,75,178,.25);
  border-radius: 6px;
}
.gnode__counter-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
}
.gnode__counter-label {
  font-size: 10px;
  color: var(--text-dim);
  line-height: 1.3;
}

/* connector ports */
.gnode__port {
  position: absolute;
  width: 9px; height: 9px;
  background: var(--bg-raised);
  border: 1.5px solid var(--border-light);
  border-radius: 50%;
  top: 35px;
  z-index: 2;
  pointer-events: none;
}
.gnode__port--in  { left: -5px; }
.gnode__port--out { right: -5px; }

/* ── Trigger node ── */
.gnode--trigger {
  width: 100%;
  border-left: 3px solid var(--accent) !important;
  box-shadow: 0 0 32px var(--accent-glow);
  opacity: 1 !important;
  z-index: 5;
}

.gnode__trigger-label {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 5px;
}
.gnode__trigger-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.trigger-tabs {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.trigger-tab {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 7px 12px;
  text-align: left;
  cursor: pointer;
  transition: all var(--t-fast);
}
.trigger-tab:hover { border-color: var(--border-light); color: var(--text); }
.trigger-tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.trigger-reset {
  margin-top: 6px;
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--text-xs);
  cursor: pointer;
  padding: 2px 0;
  transition: color var(--t-fast);
}
.trigger-reset:hover { color: var(--text-dim); }

/* ── Service nodes ── */
.gnode--service {
  opacity: .55;
  cursor: pointer;
  transition: opacity var(--t-base);
}
.gnode--service:hover { opacity: .9; }

/* pulse on pet node */
@keyframes pet-pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--c-purple-glow); }
  50% { box-shadow: 0 0 0 6px transparent; }
}
.gnode[data-id="c9"] {
  animation: pet-pulse 2.8s ease-in-out infinite;
}

/* ── Flagship badge ── */
.gnode__flagship {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 3px;
  padding: 1px 6px;
  margin-left: 6px;
  vertical-align: middle;
}

/* ─────────────────────────────────────────────
   Case detail sections
───────────────────────────────────────────── */
.cases-wrap {
  padding: 0 0 80px;
}

.case-section {
  border-top: 1px solid var(--border);
  padding: 72px 0;
  scroll-margin-top: 72px;
}

.case-section__inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 32px;
}

.case-section__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.case-section__cat-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.cat-dot--teal   { background: var(--c-teal);   }
.cat-dot--coral  { background: var(--c-coral);  }
.cat-dot--purple { background: var(--c-purple); }

.case-section__cat-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.case-section__back {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-xs);
}
.case-section__back:hover { color: var(--accent); }

.case-section h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 8px;
}

.case-section__meta {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 32px;
}

.case-section p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 18px;
}

.case-section ul {
  margin: 0 0 24px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.case-section ul li {
  font-size: 14px;
  color: var(--text-dim);
  padding-left: 20px;
  position: relative;
  line-height: 1.55;
}
.case-section ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-xs);
}

.case-section__result {
  background: var(--bg-raised);
  border-left: 3px solid var(--c-teal);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text-dim);
  margin: 24px 0;
  line-height: 1.6;
}

.case-section__cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 28px 0;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 22px;
}

.case-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.case-card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
}

.case-card p {
  font-size: 13px;
  margin-bottom: 10px;
}

.case-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 12px;
}

.tag {
  font-size: 10.5px;
  color: var(--text-dim);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
}

/* ─────────────────────────────────────────────
   Skills section
───────────────────────────────────────────── */
.section-skills {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: 72px;
}

.section-skills .container { max-width: 1000px; }

.section-heading {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-xs);
  margin-bottom: 36px;
}

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

.skills-col {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
}

.skills-col__heading {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.skills-col:nth-child(1) .skills-col__heading { color: var(--c-teal);   }
.skills-col:nth-child(2) .skills-col__heading { color: var(--c-coral);  }
.skills-col:nth-child(3) .skills-col__heading { color: var(--c-purple); }

.skills-col ul {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.skills-col ul li {
  font-size: 12.5px;
  color: var(--text-dim);
  padding-left: 0;
  line-height: 1.45;
}
.skills-col ul li::before { display: none; }

/* ─────────────────────────────────────────────
   About section
───────────────────────────────────────────── */
.section-about {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: 72px;
}

.section-about .container { max-width: 760px; }

.about-text p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 20px;
}
.about-text p:last-child { margin-bottom: 0; }

/* ─────────────────────────────────────────────
   Contacts section
───────────────────────────────────────────── */
.section-contacts {
  padding: 80px 0 120px;
  border-top: 1px solid var(--border);
  scroll-margin-top: 72px;
}

.section-contacts .container { max-width: 600px; text-align: center; }

.section-contacts p {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 32px;
  line-height: 1.65;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 13px 28px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: filter var(--t-fast), transform var(--t-fast);
  text-decoration: none;
}
.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
  text-decoration: none;
  color: #fff;
}

.contacts__links {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-top: 24px;
}
.contacts__links a {
  font-size: 13px;
  color: var(--text-dim);
  transition: color var(--t-fast);
}
.contacts__links a:hover { color: var(--text); text-decoration: none; }

/* ─────────────────────────────────────────────
   Case media / figures
───────────────────────────────────────────── */
.case-fig {
  margin: 28px 0;
}
.case-fig img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.case-fig figcaption {
  font-size: 11.5px;
  color: var(--text-xs);
  text-align: center;
  margin-top: 8px;
  letter-spacing: .02em;
}

/* 2 or 3 figures in a row */
.case-fig-grid {
  display: grid;
  gap: 14px;
  margin: 28px 0;
}
.case-fig-grid--2 { grid-template-columns: 1fr 1fr; }
.case-fig-grid--3 { grid-template-columns: 1fr 1fr 1fr; }

.case-fig-grid figure { margin: 0; }
.case-fig-grid figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.case-fig-grid figure figcaption {
  font-size: 11px;
  color: var(--text-xs);
  text-align: center;
  margin-top: 6px;
}

/* looping video */
.case-video {
  margin: 28px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.case-video video {
  width: auto;
  max-width: 33%;
  max-height: 160px;
  object-fit: cover;
  display: block;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #000;
}
.case-video figcaption {
  font-size: 11.5px;
  color: var(--text-xs);
  text-align: center;
  margin-top: 8px;
  letter-spacing: .02em;
}

/* narrow figure (centered) */
.case-fig--centered {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.case-fig--centered img { max-width: 420px; width: 100%; }

/* ─────────────────────────────────────────────
   Responsive
───────────────────────────────────────────── */
@media (max-width: 900px) {
  .skills-grid { grid-template-columns: 1fr; }
  .nav__links { display: none; }
}
@media (max-width: 640px) {
  .case-fig-grid--2,
  .case-fig-grid--3 { grid-template-columns: 1fr; }
}