/* ==========================================================================
   NAV
   ========================================================================== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
  padding: 0 var(--pad);
  height: 64px;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: height 300ms var(--ease), background 400ms var(--ease);
}
.nav.is-compact {
  height: 54px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

.nav__mark {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav__mark-dash { color: var(--lime); padding: 0 0.15em; }

.nav__links { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2.2rem); font-family: var(--font-mono); }
.nav__links a {
  position: relative;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-2);
  transition: color 200ms;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after,
.nav__links a.is-active::after { transform: scaleX(1); }
.nav__links a.is-active { color: var(--lime); }

.nav__actions { display: flex; align-items: center; gap: var(--s2); }
.nav__index { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-3); letter-spacing: 0.04em; }

/* burger */
.nav-burger { display: none; flex-direction: column; gap: 5px; padding: 8px 2px; }
.nav-burger span {
  display: block; width: 20px; height: 1.5px;
  background: var(--ink);
  transition: transform 300ms var(--ease), opacity 200ms;
}
.nav-burger[aria-expanded="true"] span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 64px 0 auto 0;
  z-index: 49;
  display: none;
  flex-direction: column;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 300ms var(--ease), opacity 250ms;
  font-family: var(--font-mono);
}
.mobile-menu a {
  padding: 1rem var(--pad);
  font-size: 1.05rem;
  font-weight: 500;
  border-top: 1px solid var(--line);
}
.mobile-menu.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }

/* ==========================================================================
   SECTION SCAFFOLD
   ========================================================================== */
.section { padding: var(--s6) 0 0; }
.section--tight { padding-top: var(--s5); }

.section-head { max-width: 640px; margin-bottom: var(--s4); }

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--ink-3);
  margin-bottom: var(--s2);
}
.section-eyebrow::before { content: "$"; color: var(--lime); font-weight: 500; }

.section-title {
  font-family: var(--font-mono);
  font-size: var(--title);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
}
.section-title span { display: inline-block; }

.section-sub {
  margin-top: var(--s2);
  color: var(--ink-2);
  font-family: var(--font-sans);
  font-size: 1rem;
  max-width: 60ch;
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(220px, 320px);
  align-items: center;
  padding-top: 64px;
  gap: var(--s4);
}

.hero::before {
  content: "";
  position: absolute;
  top: 8%;
  left: 20%;
  width: min(560px, 70vw);
  height: min(560px, 70vw);
  background: radial-gradient(circle, var(--lime) 0%, transparent 62%);
  opacity: 0.08;
  filter: blur(48px);
  z-index: -1;
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  top: 40%;
  right: 10%;
  width: min(420px, 60vw);
  height: min(420px, 60vw);
  background: radial-gradient(circle, var(--cyan) 0%, transparent 65%);
  opacity: 0.07;
  filter: blur(52px);
  z-index: -1;
  pointer-events: none;
}

.hero__main { display: flex; flex-direction: column; gap: var(--s3); }

.terminal {
  --gx: 50%;
  --gy: 30%;
  position: relative;
  max-width: 760px;
  width: 100%;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-1);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.6);
  isolation: isolate;
}
.terminal::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(320px circle at var(--gx) var(--gy), var(--glow-lime), transparent 70%);
  opacity: 0;
  transition: opacity 400ms var(--ease);
}
.terminal:hover::before { opacity: 1; }

.terminal__bar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 1rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
}
.terminal__dot { width: 11px; height: 11px; border-radius: 50%; background: var(--line-2); }
.terminal__dot:nth-child(3) { background: var(--lime); }
.terminal__title {
  margin-left: auto;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.terminal__body {
  position: relative;
  z-index: 1;
  padding: 1.25rem 1.25rem 1.5rem;
  display: grid;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
}

.term-line { white-space: pre-wrap; overflow-wrap: break-word; }
.term-prompt { color: var(--lime); font-weight: 500; }
.cmd-text { color: var(--ink); }
.term-line.out { color: var(--ink-2); }
.term-line .hl { color: var(--lime); font-weight: 500; }
.term-line .hl--cyan { color: var(--cyan); }

.cursor {
  display: inline-block;
  width: 0.6em;
  height: 1.1em;
  background: var(--lime);
  vertical-align: text-bottom;
  animation: blink 1.1s steps(2, start) infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero__cta { display: flex; gap: var(--s2); flex-wrap: wrap; }
.hero__rule {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}
.hero__rule-line { flex: 1; height: 1px; background: var(--line); }

/* stat rail */
.stat-rail {
  display: flex;
  flex-direction: column;
  gap: var(--s3);
  border-left: 1px solid var(--line);
  padding-left: var(--s3);
  font-family: var(--font-mono);
}
.stat { display: flex; flex-direction: column; gap: 0.3rem; }
.stat__label { font-size: 0.68rem; letter-spacing: 0.08em; color: var(--ink-3); text-transform: lowercase; }
.stat__value { font-size: 0.95rem; color: var(--ink); display: flex; align-items: center; gap: 0.5em; }
.stat__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px var(--glow-lime);
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.stat--ring { flex-direction: row; align-items: center; gap: 0.75rem; }
.stat-ring { width: 40px; height: 40px; flex-shrink: 0; }
.stat-ring__track { fill: none; stroke: var(--line-2); stroke-width: 8; }
.stat-ring__progress {
  fill: none;
  stroke: var(--lime);
  stroke-width: 8;
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: center;
}
.stat-ring__text { fill: var(--ink); font-size: 26px; font-family: var(--font-mono); text-anchor: middle; }

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.75rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 6px;
  transition: background 250ms var(--ease), color 250ms var(--ease),
              border-color 250ms var(--ease), transform 250ms var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.97); }

.btn--solid { background: var(--lime); color: var(--bg); border: 1px solid var(--lime); }
.btn--solid:hover { background: transparent; color: var(--lime); }

.btn--line { border: 1px solid var(--line-2); color: var(--ink); }
.btn--line:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* ==========================================================================
   MARQUEE
   ========================================================================== */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  padding: 0.9rem 0;
  margin: 0 calc(-1 * var(--pad));
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  gap: 2.2rem;
  width: max-content;
  animation: marquee 32s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  white-space: nowrap;
}
.marquee__track span:nth-child(4n+1) { color: var(--lime); }
.marquee__track span:nth-child(4n+3) { color: var(--cyan); }
.marquee__track i { font-style: normal; color: var(--line-2); }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ==========================================================================
   NOW
   ========================================================================== */
.now-list { display: grid; gap: 0.9rem; max-width: 640px; }
.now-row {
  display: flex;
  gap: var(--s2);
  align-items: baseline;
  padding-left: 1rem;
  border-left: 2px solid var(--line-2);
  transition: border-color 250ms var(--ease);
}
.now-row:hover { border-color: var(--lime); }
.now-row__key {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--lime);
  min-width: 6.5rem;
  flex-shrink: 0;
}
.now-row__val { font-size: 0.98rem; color: var(--ink-2); }

/* ==========================================================================
   BUILD — diagrams
   ========================================================================== */
.build-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s3);
}
.diagram {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-1);
  padding: var(--s3);
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}
.diagram--wide { grid-column: 1 / -1; }
.diagram__head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s2); flex-wrap: wrap; }
.diagram__title { font-family: var(--font-mono); font-size: 0.95rem; font-weight: 500; }
.diagram__tag { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.06em; color: var(--ink-3); text-transform: lowercase; }
.diagram__desc { font-size: 0.88rem; color: var(--ink-2); max-width: 56ch; }

/* pipeline */
.pipeline__scroll { overflow-x: auto; padding-bottom: 0.25rem; }
.pipeline__row { position: relative; display: flex; align-items: center; gap: 0.3rem; min-width: max-content; padding: 1.75rem 0.25rem 0.5rem; }
.pipeline__node {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.01em;
  color: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: 8px;
  padding: 0.5rem 0.7rem;
  white-space: nowrap;
  background: var(--bg-2);
  transition: border-color 250ms, color 250ms;
}
.pipeline__node[data-phase="ingest"] { border-color: color-mix(in srgb, var(--cyan) 35%, var(--line-2)); }
.pipeline__node[data-phase="generate"] { border-color: color-mix(in srgb, var(--lime) 35%, var(--line-2)); }
.pipeline.is-active .pipeline__node { color: var(--ink); }
.pipeline__arrow { flex-shrink: 0; color: var(--line-2); }
.pipeline__arrow[data-phase="ingest"] { color: color-mix(in srgb, var(--cyan) 55%, var(--line-2)); }
.pipeline__arrow[data-phase="generate"] { color: color-mix(in srgb, var(--lime) 55%, var(--line-2)); }

.pipeline__packet {
  position: absolute;
  top: 1.75rem;
  left: 0.25rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 12px 2px var(--glow-lime);
  opacity: 0;
}
.pipeline.is-active .pipeline__packet {
  animation: packet-travel 3.2s var(--ease) 400ms 1 forwards;
}
@keyframes packet-travel {
  0% { opacity: 0; transform: translateX(0); }
  6% { opacity: 1; }
  92% { opacity: 1; }
  100% { opacity: 0; transform: translateX(calc(100cqw - 1.5rem)); }
}
.pipeline__row { container-type: inline-size; }

/* agent loop */
.loop { display: flex; align-items: center; gap: var(--s3); flex-wrap: wrap; }
.loop__ring-wrap { position: relative; width: 168px; height: 168px; flex-shrink: 0; }
.loop__ring { width: 100%; height: 100%; }
.loop__ring circle:first-child { fill: none; stroke: var(--line-2); stroke-width: 2; }
.loop__progress { fill: none; stroke-width: 2; stroke-linecap: round; }
.diagram.is-active .loop__progress { animation: loop-spin 4.5s linear infinite; }
@keyframes loop-spin { to { stroke-dashoffset: -100; } }
.loop__label {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  background: var(--bg-1);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}
.loop__label--think { top: -2%; left: 50%; color: var(--lime); }
.loop__label--act { bottom: 4%; left: 92%; }
.loop__label--observe { bottom: 4%; left: 8%; color: var(--cyan); }

.loop__tools { display: grid; gap: 0.5rem; font-family: var(--font-mono); font-size: 0.78rem; }
.loop__tool {
  display: flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  color: var(--ink-2);
}
.loop__tool::before { content: "◆"; font-size: 0.6em; color: var(--cyan); }

/* embedding plot */
.embed-plot { width: 100%; height: auto; }
.embed-plot__dot { fill: var(--line-2); }
.diagram.is-active .embed-plot__dot { fill: var(--ink-3); transition: fill 600ms var(--ease); }
.embed-plot__query { fill: var(--lime); }
.embed-plot__link { stroke: var(--cyan); stroke-width: 1; stroke-dasharray: 3 3; opacity: 0; }
.diagram.is-active .embed-plot__link { animation: link-in 900ms var(--ease) 300ms forwards; }
@keyframes link-in { to { opacity: 0.6; } }
.embed-plot__label { fill: var(--ink-3); font-size: 9px; font-family: var(--font-mono); text-anchor: middle; }
.embed-plot__label--query { fill: var(--lime); font-weight: 500; }

/* ==========================================================================
   STACK — bento grid
   ========================================================================== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s2);
}
.stack-card {
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-1);
  padding: var(--s2) var(--s2) 0.4rem;
  display: flex;
  flex-direction: column;
  transition: border-color 250ms var(--ease), transform 250ms var(--ease);
  width: 100%;
}
.stack-card:hover { border-color: var(--line-2); transform: translateY(-2px); }
.stack-card[aria-expanded="true"] { border-color: var(--lime); }

.stack-card__glyph { width: 26px; height: 26px; color: var(--ink-2); margin-bottom: 0.75rem; transition: color 250ms var(--ease); }
.stack-card__glyph path, .stack-card__glyph circle, .stack-card__glyph rect { stroke-dasharray: 40; stroke-dashoffset: 0; }
.stack-card:hover .stack-card__glyph,
.stack-card[aria-expanded="true"] .stack-card__glyph { color: var(--lime); }

.stack-card__head { display: flex; align-items: baseline; justify-content: space-between; gap: 0.5rem; }
.stack-card__title { font-family: var(--font-mono); font-size: 0.92rem; font-weight: 500; }
.stack-card__count { font-family: var(--font-mono); font-size: 0.66rem; color: var(--ink-3); white-space: nowrap; }

.stack-card__detail-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 350ms var(--ease);
}
.stack-card[aria-expanded="true"] .stack-card__detail-wrap { grid-template-rows: 1fr; }
.stack-card__detail-inner { overflow: hidden; }

.stack-card__chips { display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 0.9rem 0 1rem; }
.stack-card__chips li {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: 4px;
  padding: 0.25em 0.6em;
}

/* ==========================================================================
   PROJECTS
   ========================================================================== */
.system {
  display: grid;
  grid-template-columns: minmax(70px, 1fr) minmax(0, 3.2fr);
  gap: var(--s3);
  padding: var(--s4) 0;
  border-top: 1px solid var(--line);
}
.system:last-of-type { border-bottom: 1px solid var(--line); }

.system__index { font-family: var(--font-mono); font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 400; color: var(--ink-3); line-height: 1; padding-top: 0.35rem; }
.system__index::before { content: "./"; color: var(--lime); }

.system__head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s2); flex-wrap: wrap; margin-bottom: var(--s2); }
.system__title { font-family: var(--font-mono); font-size: clamp(1.2rem, 2.4vw, 1.7rem); font-weight: 500; letter-spacing: -0.02em; }
.system__tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3em 0.9em;
  white-space: nowrap;
}

.system__desc { color: var(--ink-2); max-width: 62ch; font-size: 0.96rem; }

.system__points { margin: var(--s3) 0; display: grid; gap: 0.65rem; max-width: 62ch; }
.system__points li { position: relative; padding-left: 1.4rem; font-size: 0.9rem; color: var(--ink-2); }
.system__points li::before { content: "-"; position: absolute; left: 0; color: var(--lime); }

/* project schematic */
.schema { margin: var(--s3) 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-1); padding: 1rem 1.1rem 1.25rem; overflow-x: auto; }
.schema__row { display: flex; align-items: center; gap: 0.35rem; min-width: max-content; }
.schema__node {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: 6px;
  padding: 0.4rem 0.65rem;
  white-space: nowrap;
  background: var(--bg-2);
}
.schema__arrow { color: var(--line-2); flex-shrink: 0; }
.schema__branch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0.5rem 0 0 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--cyan);
}
.schema__branch-line { width: 18px; height: 1px; background: color-mix(in srgb, var(--cyan) 45%, transparent); position: relative; }
.schema__branch-line::before { content: "↳"; position: absolute; left: -14px; top: -9px; color: color-mix(in srgb, var(--cyan) 60%, transparent); }
.schema__branch-node {
  border: 1px dashed color-mix(in srgb, var(--cyan) 45%, var(--line-2));
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  white-space: nowrap;
}
.schema--loop .schema__row { padding-bottom: 0.6rem; }
.schema__return {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--lime);
}
.schema__return::before { content: "↳"; color: var(--lime); }

.system__foot { display: flex; align-items: center; justify-content: space-between; gap: var(--s2); flex-wrap: wrap; }
.chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: 4px;
  padding: 0.28em 0.7em;
  transition: border-color 200ms, color 200ms;
}
.system:hover .chip { border-color: var(--lime); color: var(--ink); }

.system__links { display: flex; gap: var(--s2); }
.system__metric {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--ink);
  white-space: nowrap;
  transition: color 200ms;
}
.system__metric:hover { color: var(--lime); }

/* ==========================================================================
   EDUCATION band
   ========================================================================== */
.edu-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s3);
  padding: var(--s3) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.edu-col { display: grid; gap: 0.6rem; }
.edu-row { display: flex; gap: 0.75rem; font-size: 0.9rem; }
.edu-row__key { font-family: var(--font-mono); font-size: 0.72rem; color: var(--lime); min-width: 6rem; flex-shrink: 0; padding-top: 0.15rem; letter-spacing: 0.03em; }
.edu-row__val { color: var(--ink-2); }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.section--contact { padding-bottom: var(--s6); }

.contact-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.contact-link {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.4rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 250ms var(--ease), color 250ms var(--ease);
}
.contact-link:hover { background: var(--lime); color: var(--bg); }
.contact-link:hover .contact-link__label { color: inherit; }
.contact-link__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--ink-3);
  transition: color 250ms;
}
.contact-link__value { font-family: var(--font-mono); font-size: 0.9rem; font-weight: 500; overflow-wrap: anywhere; }
.contact-link__arrow { transition: transform 300ms var(--ease); display: inline-block; }
.contact-link:hover .contact-link__arrow { transform: translateX(4px); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 980px) {
  .hero { grid-template-columns: minmax(0, 1fr); }
  .stat-rail { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: var(--s3); flex-direction: row; flex-wrap: wrap; gap: var(--s3) var(--s4); }
  .build-grid { grid-template-columns: minmax(0, 1fr); }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .nav__links { display: none; }
  .nav-burger { display: flex; }
  .mobile-menu { display: flex; }
  .nav__index { display: none; }

  .hero__cta { width: 100%; }
  .hero__cta .btn { flex: 1; }

  .terminal__body { font-size: 0.78rem; }

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

  .system { grid-template-columns: minmax(0, 1fr); gap: var(--s2); }
  .system__index { font-size: 1.2rem; padding-top: 0; }
  .system__foot { flex-direction: column; align-items: flex-start; }

  .edu-band { grid-template-columns: 1fr; }
  .edu-row__key { min-width: 5.5rem; }

  .now-row { flex-direction: column; gap: 0.15rem; }

  .contact-links { grid-template-columns: minmax(0, 1fr); }
}