/* ===== Tokens ===== */
:root {
  --void: #05070d;
  --panel: #0b0f1a;
  --panel-2: #10162a;
  --line: #1e2740;
  --rust: #c97c3d;
  --violet: #8b6bff;
  --amber: #ffb454;
  --ink: #e8edf6;
  --mist: #8b96b0;

  --font-display: 'Fraunces', serif;
  --font-body: 'Work Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --wrap: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

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

img, svg { display: block; max-width: 100%; }

:focus-visible {
  outline: 2px solid var(--rust);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--rust);
  color: var(--void);
  padding: 10px 16px;
  z-index: 200;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* ===== Ambient background ===== */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(201,124,61,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,124,61,0.07) 1px, transparent 1px);
  background-size: 42px 42px;
  animation: drift 26s linear infinite;
}
@keyframes drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 84px 84px, 84px 84px; }
}

/* Ambient glow blobs */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}
.glow {
  position: absolute;
  border-radius: 50%;
}
.glow--a {
  width: 620px; height: 620px;
  left: -160px; top: -140px;
  background: radial-gradient(circle, rgba(201,124,61,0.16), transparent 70%);
  animation: glow-drift-a 50s ease-in-out infinite alternate;
}
.glow--b {
  width: 680px; height: 680px;
  right: -200px; top: 28%;
  background: radial-gradient(circle, rgba(139,107,255,0.14), transparent 70%);
  animation: glow-drift-b 64s ease-in-out infinite alternate;
}
.glow--c {
  width: 560px; height: 560px;
  left: 26%; bottom: -220px;
  background: radial-gradient(circle, rgba(201,124,61,0.13), transparent 70%);
  animation: glow-drift-c 58s ease-in-out infinite alternate;
}
@keyframes glow-drift-a { from { transform: translate(0,0); } to { transform: translate(90px,70px); } }
@keyframes glow-drift-b { from { transform: translate(0,0); } to { transform: translate(-80px,60px); } }
@keyframes glow-drift-c { from { transform: translate(0,0); } to { transform: translate(70px,-50px); } }

/* Ambient circuit-board layer */
.bg-circuit {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.circuit-trace {
  fill: none;
  stroke: var(--rust);
  stroke-width: 1.4;
  opacity: 0.18;
  stroke-dasharray: 6 16;
  animation: circuit-flow 8s linear infinite;
}
.circuit-trace--violet { stroke: var(--violet); }
.circuit-trace:nth-of-type(2n) { animation-duration: 10s; }
.circuit-trace:nth-of-type(3n) { animation-duration: 6.5s; animation-direction: reverse; }
@keyframes circuit-flow { to { stroke-dashoffset: -220; } }

.circuit-chip {
  fill: none;
  stroke: var(--violet);
  stroke-width: 1;
  opacity: 0.16;
}

.circuit-pad {
  fill: var(--rust);
  opacity: 0.3;
  animation: pad-pulse 4s ease-in-out infinite;
}
.circuit-pad--violet { fill: var(--violet); }
.circuit-pad:nth-of-type(3n) { animation-delay: 1.3s; }
.circuit-pad:nth-of-type(4n) { animation-delay: 2.4s; }
@keyframes pad-pulse {
  0%, 100% { opacity: 0.22; }
  50% { opacity: 0.55; }
}

/* ===== Layout helpers ===== */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 14px;
}
.eyebrow--tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--panel);
  color: var(--mist);
}

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5,7,13,0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 8px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
}
.brand__logo {
  height: 40px;
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  gap: 26px;
  font-size: 0.92rem;
}
.nav__links a {
  color: var(--mist);
  transition: color 0.2s ease;
  position: relative;
}
.nav__links a:hover,
.nav__links a:focus-visible { color: var(--ink); }
.nav__links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 1px;
  background: var(--rust);
  transition: width 0.25s ease;
}
.nav__links a:hover::after { width: 100%; }

.lang-switch {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  flex-shrink: 0;
}
.lang-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--mist);
  background: transparent;
  border: none;
  padding: 6px 12px;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}
.lang-btn:hover { color: var(--ink); }
.lang-btn[aria-pressed="true"] {
  background: var(--rust);
  color: var(--void);
}
.lang-btn[aria-pressed="true"]:hover { color: var(--void); }

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--rust);
  box-shadow: 0 0 8px 1px var(--rust);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav__burger span {
  width: 20px; height: 2px;
  background: var(--ink);
}
.nav__mobile {
  display: none;
  flex-direction: column;
  padding: 8px 24px 18px;
  border-top: 1px solid var(--line);
}
.nav__mobile a {
  padding: 12px 0;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}
.nav__mobile.open { display: flex; }

/* ===== Hero ===== */
.hero {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 88px 24px 60px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero__title {
  font-size: clamp(2.2rem, 4.4vw, 3.4rem);
  line-height: 1.12;
  margin: 0 0 22px;
}
.accent { color: var(--rust); font-style: italic; }
.hero__sub {
  max-width: 46ch;
  color: var(--mist);
  font-size: 1.05rem;
  margin-bottom: 32px;
}
.hero__cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 22px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}
.btn--primary {
  background: var(--rust);
  color: var(--void);
}
.btn--primary:hover {
  box-shadow: 0 0 22px rgba(201,124,61,0.45);
  transform: translateY(-1px);
}
.btn--ghost {
  border: 1px solid var(--line);
  color: var(--ink);
}
.btn--ghost:hover {
  border-color: var(--rust);
  color: var(--rust);
}

.hero__diagram { position: relative; }
.blueprint { width: 100%; height: auto; overflow: visible; }
.bp-shape {
  fill: none;
  stroke: var(--line);
  stroke-width: 1.5;
}
.bp-shape--violet { stroke: rgba(139,107,255,0.55); }
.bp-shape--cyan { stroke: rgba(201,124,61,0.55); }
.bp-dot { fill: var(--line); }
.bp-fill { fill: var(--line); opacity: 0.55; }
.bp-fill--cyan { fill: var(--rust); opacity: 0.6; }
.bp-fill--mist { fill: var(--mist); opacity: 0.4; }

.trace {
  fill: none;
  stroke: var(--rust);
  stroke-width: 1.5;
  opacity: 0.7;
}
.node circle {
  fill: var(--panel);
  stroke-width: 2;
}
.node--cyan circle { stroke: var(--rust); filter: drop-shadow(0 0 5px rgba(201,124,61,0.6)); }
.node--violet circle { stroke: var(--violet); filter: drop-shadow(0 0 5px rgba(139,107,255,0.6)); }
.node--amber circle { stroke: var(--amber); filter: drop-shadow(0 0 5px rgba(255,180,84,0.6)); }
.node text {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--mist);
  letter-spacing: 0.03em;
}

/* ===== Stack marquee ===== */
.stack-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 16px 0;
  background: var(--panel);
}
.stack-strip__track {
  display: flex;
  gap: 40px;
  width: max-content;
  animation: marquee 22s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--mist);
  letter-spacing: 0.05em;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===== Sections ===== */
.section {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 100px 24px;
}
.section--tight { padding-top: 0; }
.section__head { max-width: 640px; margin-bottom: 52px; }
.section__head h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 14px; }
.section__intro { color: var(--mist); font-size: 1.02rem; }

.caret {
  display: inline-block;
  width: 0.5em;
  height: 0.85em;
  margin-left: 0.15em;
  background: var(--rust);
  vertical-align: -0.1em;
  animation: caret-blink 1.1s step-end infinite;
}
@keyframes caret-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Diagnostics */
.diagnostics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.diag-tile {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px 22px;
}
.diag-tile::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--rust), var(--violet));
  opacity: 0.75;
}
.diag-tile__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.diag-tile__label small {
  text-transform: none;
  opacity: 0.75;
  letter-spacing: 0.02em;
}
.diag-tile__value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--ink);
  margin-bottom: 14px;
}
.diag-tile__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--rust);
  letter-spacing: 0.08em;
  border: 1px solid var(--line);
  padding: 3px 8px;
  border-radius: 3px;
}

/* Modules */
.modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.module {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.module::before,
.module::after {
  content: '';
  position: absolute;
  width: 14px; height: 14px;
  border: 1px solid transparent;
  transition: border-color 0.25s ease;
}
.module::before { top: -1px; left: -1px; border-top-color: var(--rust); border-left-color: var(--rust); }
.module::after { bottom: -1px; right: -1px; border-bottom-color: var(--rust); border-right-color: var(--rust); }
.module:hover { transform: translateY(-3px) scale(1.06); border-color: var(--line); }
.module:hover::before, .module:hover::after { border-color: var(--rust); }

.module__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.module__index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
  letter-spacing: 0.08em;
}
.module__status {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--rust);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.05em;
}
.module__led {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--rust);
  box-shadow: 0 0 6px var(--rust);
}
.module h3 { font-size: 1.25rem; margin-bottom: 10px; }
.module p { color: var(--mist); font-size: 0.94rem; margin-bottom: 18px; }
.module__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.module__tags li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 4px 8px;
}

/* Projects */
.projects {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.project {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.project:hover { transform: translateY(-3px); border-color: var(--violet); }
.project__body { padding: 22px 24px 24px; }
.project__top { margin-bottom: 14px; }
.project__status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--amber);
  letter-spacing: 0.05em;
}
.project h3 { font-size: 1.1rem; margin-bottom: 10px; }
.project p { color: var(--mist); font-size: 0.92rem; margin-bottom: 16px; }
.project__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.project__tags li {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--mist);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 4px 8px;
}

/* Project window mockups */
.project-window__chrome {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.wdot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--line);
}
.project-window__url {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--mist);
  letter-spacing: 0.03em;
}
.project-window__view {
  position: relative;
  height: 150px;
  background: var(--void);
  overflow: hidden;
}

/* booking view */
.view--booking { padding: 18px; }
.view-nav {
  width: 60%;
  height: 8px;
  border-radius: 2px;
  background: var(--line);
  margin-bottom: 16px;
}
.view-cal {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  width: 70%;
}
.view-cal span {
  height: 16px;
  border-radius: 3px;
  background: var(--panel);
  border: 1px solid var(--line);
}
.view-cal span.hit {
  background: rgba(139,107,255,0.25);
  border-color: var(--violet);
  box-shadow: 0 0 8px rgba(139,107,255,0.5);
}
.view-tag {
  position: absolute;
  bottom: 16px; right: 18px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--amber);
  border: 1px solid var(--line);
  padding: 3px 8px;
  border-radius: 3px;
  letter-spacing: 0.05em;
}

/* brand view */
.view--brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.view-mark {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 2px solid var(--rust);
  box-shadow: 0 0 10px rgba(201,124,61,0.4);
}
.view-lines { display: flex; flex-direction: column; gap: 6px; align-items: center; }
.view-lines span:first-child { width: 90px; height: 8px; border-radius: 2px; background: var(--mist); opacity: 0.6; }
.view-lines span:last-child { width: 60px; height: 6px; border-radius: 2px; background: var(--mist); opacity: 0.35; }
.view-swatches { display: flex; gap: 8px; }
.view-swatches i {
  width: 16px; height: 16px;
  border-radius: 50%;
  display: block;
}
.view-swatches i:nth-child(1) { background: var(--rust); }
.view-swatches i:nth-child(2) { background: var(--violet); }
.view-swatches i:nth-child(3) { background: var(--amber); }
.view-swatches i:nth-child(4) { background: var(--mist); }

/* Process */
.process {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.process::before {
  content: '';
  position: absolute;
  top: 17px;
  left: 6%;
  right: 6%;
  height: 1px;
  background: var(--line);
  z-index: 0;
}
.process__step { position: relative; z-index: 1; padding-right: 8px; }
.process__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--rust);
  background: var(--void);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--rust);
  box-shadow: 0 0 10px rgba(201,124,61,0.35);
  margin-bottom: 16px;
}
.process__step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.process__step p { color: var(--mist); font-size: 0.9rem; }

/* About */
.section--split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}
.section--split .section__head { margin-bottom: 0; }
.readout {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px 26px;
  margin: 0;
}
.readout__row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.readout__row:last-child { border-bottom: none; }
.readout__row dt { color: var(--mist); letter-spacing: 0.06em; }
.readout__row dd { margin: 0; color: var(--ink); text-align: right; }

/* Contact */
.contact-form {
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--mist);
  letter-spacing: 0.06em;
}
.field input, .field textarea, .field select {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.2s ease;
}
.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--mist) 50%), linear-gradient(135deg, var(--mist) 50%, transparent 50%);
  background-position: calc(100% - 20px) center, calc(100% - 15px) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.field select option { background: var(--panel); color: var(--ink); }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--rust);
  outline: none;
}
.contact-form .btn { align-self: flex-start; border: none; cursor: pointer; }
.field__hint {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--mist);
  margin-top: 14px;
}
.field__note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--rust);
  min-height: 1.2em;
}

/* Footer */
.footer {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 60px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mist);
}
.footer a:hover { color: var(--rust); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; }
  .hero__diagram { order: -1; opacity: 0.9; }
  .nav__links, .status-pill { display: none; }
  .nav__burger { display: flex; }
  .modules, .projects { grid-template-columns: 1fr; }
  .section--split { grid-template-columns: 1fr; }
  .diagnostics { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: 1fr; gap: 24px; }
  .process::before { display: none; }
}

@media (max-width: 520px) {
  .diagnostics { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .section { padding: 70px 20px; }
  .hero { padding: 32px 20px 40px; }
  .brand__logo { height: 28px; }
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .bg-grid { animation: none; }
  .glow { animation: none; }
  .circuit-trace { animation: none; }
  .circuit-pad { animation: none; opacity: 0.3; }
  .status-dot { animation: none; }
  .stack-strip__track { animation: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .trace { transition: none !important; }
  .btn--primary:hover { transform: none; }
  .module:hover, .project:hover { transform: none; }
  .caret { animation: none; opacity: 1; }
}