/* ==========================================================================
   Quantum Forge Labs — Design System
   "The digital forge": molten energy (amber) meets glowing circuitry (cyan).
   Rule: never mix both accents at full strength in the same element.
   ========================================================================== */

:root {
  /* Color */
  --color-bg: #0B0D12;
  --color-surface: #0B0D12; /* same as --color-bg: one background colour site-wide */
  --color-surface-raised: #171B24;
  --color-border: #232838;
  --color-text: #E8EAF0;
  --color-text-dim: #8A90A3;

  --color-molten: #FF7A33;
  --color-molten-dim: #B85A26;
  --color-quantum: #33E0FF;
  --color-quantum-dim: #279CB3;

  /* Type */
  --font-heading: 'Sora', system-ui, sans-serif;
  --font-body: 'Manrope', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --fs-h1: clamp(2.25rem, 5vw + 1rem, 4.5rem);
  --fs-h2: clamp(1.75rem, 3vw + 1rem, 2.75rem);
  --fs-h3: clamp(1.25rem, 1.5vw + 1rem, 1.75rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.75rem;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 5rem;
  --space-8: 8rem;

  /* Layout */
  --content-max: 1200px;
  --gutter: 1.5rem;
  --nav-height: 76px;
  --radius: 12px;
  --radius-sm: 8px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur-fast: 150ms;
  --dur-base: 300ms;
}

@media (max-width: 480px) {
  :root {
    --gutter: 1.25rem;
    --nav-height: 64px;
  }
}

/* --------------------------------------------------------------------------
   Reset
   -------------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  margin: 0;
  min-width: 375px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
}

p {
  margin: 0;
  color: var(--color-text-dim);
}

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

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  background: var(--color-quantum);
  color: var(--color-bg);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
}

.skip-link:focus {
  left: var(--space-3);
  top: var(--space-3);
}

:focus-visible {
  outline: 2px solid var(--color-quantum);
  outline-offset: 2px;
}

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

/* --------------------------------------------------------------------------
   Shared primitives
   -------------------------------------------------------------------------- */

.eyebrow,
.nav__link .eyebrow,
.placeholder-tag {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-block;
  color: var(--color-text-dim);
}

.eyebrow--molten {
  color: var(--color-molten);
}

.eyebrow--quantum {
  color: var(--color-quantum);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-small);
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.btn--molten {
  background: var(--color-molten);
  color: #1a0d05;
  box-shadow: 0 0 0 0 rgba(255, 122, 51, 0.5);
}

.btn--molten:hover {
  background: #ff8a4d;
  box-shadow: 0 0 24px 2px rgba(255, 122, 51, 0.45);
  transform: translateY(-1px);
}

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

.btn--quantum:hover {
  background: rgba(51, 224, 255, 0.08);
  box-shadow: 0 0 20px 1px rgba(51, 224, 255, 0.25);
}

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

.btn--ghost:hover {
  border-color: var(--color-text-dim);
  background: rgba(232, 234, 240, 0.04);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   Nav — sticky, glassmorphism
   -------------------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 13, 18, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  height: var(--nav-height);
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  flex-shrink: 0;
}

.nav__logo-mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.nav__logo-sub {
  color: var(--color-text-dim);
  font-weight: 600;
  margin-left: 0.35em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-left: auto;
}

.nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--color-text-dim);
  transition: color var(--dur-fast) var(--ease);
}

.nav__link .eyebrow {
  color: var(--color-quantum-dim);
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__cta {
  padding: 0.6rem 1.2rem;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.nav__toggle-bar {
  width: 20px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
}

.nav__toggle {
  position: relative;
  z-index: 101;
}

.nav__links-mobile {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-5) var(--gutter) var(--space-6);
  background: var(--color-bg);
}

.nav__link-mobile {
  padding: var(--space-4) 0;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.nav__cta-mobile {
  margin-top: var(--space-5);
  width: 100%;
  padding-top: 1rem;
  padding-bottom: 1rem;
  font-size: 1.05rem;
}

@media (max-width: 860px) {
  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .nav.is-open .nav__links-mobile {
    display: flex;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    height: calc(100vh - var(--nav-height));
    height: calc(100dvh - var(--nav-height));
    overflow-y: auto;
    z-index: 99;
  }

  .nav.is-open .nav__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav.is-open .nav__toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav.is-open .nav__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

body.nav-open {
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Scroll-triggered section reveal — generic utility, fires once per element
   the first time it enters the viewport (see js/main.js).
   -------------------------------------------------------------------------- */

.reveal-section {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

.reveal-section.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-section {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   Section skeleton
   -------------------------------------------------------------------------- */

.section {
  padding: var(--space-7) 0;
  border-bottom: 1px solid var(--color-border);
}

.section--hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--space-8) + var(--space-3));
  padding-bottom: calc(var(--space-8) + var(--space-3));
}

.hero__art {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url('../images/hero-bg.jpg?v=2');
  background-image: image-set(url('../images/hero-bg.webp') type('image/webp'), url('../images/hero-bg.jpg?v=2') type('image/jpeg'));
  background-size: cover;
  background-position: center;
  opacity: 0.6;
  filter: blur(1.5px) saturate(1.1);
  transform: scale(1.02);
  pointer-events: none;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(105deg, var(--color-bg) 0%, rgba(11, 13, 18, 0.93) 38%, rgba(11, 13, 18, 0.7) 58%, rgba(11, 13, 18, 0.34) 100%),
    linear-gradient(to top, var(--color-bg) 0%, rgba(11, 13, 18, 0) 22%);
  pointer-events: none;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 3;
  gap: var(--space-4);
}

.hero__headline {
  font-size: var(--fs-h1);
}

.hero__subhead {
  font-size: 1.125rem;
  max-width: 54ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: hero-reveal 700ms var(--ease) forwards;
  animation-delay: calc(var(--d) * 130ms + 60ms);
}

@keyframes hero-reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Hero terminal — small looping typewriter, a detail for people who linger
   -------------------------------------------------------------------------- */

.hero__terminal {
  position: relative;
  z-index: 3;
  margin-top: var(--space-6);
  width: 100%;
  max-width: 340px;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.7);
}

.hero__terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.75rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--color-border);
}

.hero__terminal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
}

.hero__terminal-label {
  margin-left: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-text-dim);
  letter-spacing: 0.03em;
}

.hero__terminal-body {
  margin: 0;
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--color-text-dim);
  white-space: pre;
  overflow-x: auto;
  min-height: 152px;
}

.hero__terminal-body .tok-keyword {
  color: var(--color-molten);
}

.hero__terminal-body .tok-fn {
  color: var(--color-quantum);
}

.hero__terminal-body .tok-string {
  color: #8fd16b;
}

.hero__terminal-cursor {
  display: inline-block;
  width: 6px;
  height: 1em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--color-quantum);
  animation: hero-terminal-blink 1s step-end infinite;
}

@keyframes hero-terminal-blink {
  50% {
    opacity: 0;
  }
}

@media (min-width: 901px) {
  .hero__terminal {
    position: absolute;
    right: var(--gutter);
    bottom: var(--space-6);
    z-index: 3;
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__terminal-cursor {
    display: none;
  }
}

.section--surface {
  background: var(--color-surface);
}

.section__inner {
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* --------------------------------------------------------------------------
   Section head (eyebrow + title)
   -------------------------------------------------------------------------- */

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 640px;
  margin-bottom: var(--space-6);
}

.section-head__title {
  font-size: var(--fs-h2);
}

.section-head--center {
  align-items: center;
  text-align: center;
  max-width: none;
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------------------------------------
   Services grid
   -------------------------------------------------------------------------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.service-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform var(--dur-base) var(--ease),
    border-color var(--dur-base) var(--ease),
    box-shadow var(--dur-base) var(--ease);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-quantum-dim);
  box-shadow: 0 0 0 1px rgba(51, 224, 255, 0.15), 0 16px 32px -16px rgba(51, 224, 255, 0.25);
}

.service-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  color: var(--color-quantum);
  background: rgba(51, 224, 255, 0.08);
  transition: transform var(--dur-base) var(--ease), background var(--dur-base) var(--ease);
}

.service-card__icon svg {
  width: 22px;
  height: 22px;
}

.service-card:hover .service-card__icon {
  background: rgba(51, 224, 255, 0.14);
  animation: icon-pulse 900ms var(--ease);
}

@keyframes icon-pulse {
  0% {
    transform: scale(1) rotate(0deg);
  }
  40% {
    transform: scale(1.12) rotate(-6deg);
  }
  70% {
    transform: scale(0.98) rotate(3deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
  }
}

.service-card__title {
  font-size: 1.1rem;
}

.service-card__desc {
  font-size: var(--fs-small);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Work grid — asymmetric / masonry-style
   -------------------------------------------------------------------------- */

.work-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: var(--space-4);
}

.work-card {
  grid-column: span 1;
  grid-row: span 1;
  display: flex;
}

.work-card--feature {
  grid-column: span 2;
  grid-row: span 2;
}

.work-card--wide {
  grid-column: span 2;
  grid-row: span 1;
}

@media (max-width: 900px) {
  .work-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 200px;
  }

  .work-card--feature {
    grid-column: span 2;
    grid-row: span 2;
  }

  .work-card--wide {
    grid-column: span 2;
    grid-row: span 1;
  }
}

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

  .work-card,
  .work-card--feature,
  .work-card--wide {
    grid-column: span 1;
    grid-row: span 1;
  }
}

.work-card {
  position: relative;
  flex-direction: column;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  transition: border-color var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.work-card:hover,
.work-card:focus-visible {
  border-color: var(--color-quantum-dim);
  transform: translateY(-2px);
}

.work-card__media {
  position: relative;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.work-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1);
  transition: transform 500ms var(--ease);
}

.work-card:hover .work-card__media img,
.work-card:focus-visible .work-card__media img {
  transform: scale(1.06);
}

.work-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
  background: linear-gradient(to top, rgba(11, 13, 18, 0.92) 0%, rgba(11, 13, 18, 0.35) 55%, transparent 100%);
  transform: translateY(100%);
  transition: transform var(--dur-base) var(--ease);
}

.work-card:hover .work-card__overlay,
.work-card:focus-visible .work-card__overlay {
  transform: translateY(0);
}

.work-card__cta {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-small);
  color: var(--color-quantum);
}

.work-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
}

.work-card__title {
  font-size: 1.05rem;
}

.work-card__desc {
  font-size: var(--fs-small);
  color: var(--color-text-dim);
}

.work-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--color-text-dim);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
}

/* --------------------------------------------------------------------------
   Process timeline
   -------------------------------------------------------------------------- */

.process-timeline {
  position: relative;
  margin-top: var(--space-6);
}

.process-track {
  position: absolute;
  top: 22px;
  left: calc(100% / 8);
  right: calc(100% / 8);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
  overflow: hidden;
}

.process-track__fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-quantum-dim), var(--color-quantum));
  transition: width 1200ms var(--ease);
}

.process-timeline.is-visible .process-track__fill {
  width: 100%;
}

.process-steps {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
  transition-delay: calc(var(--i) * 150ms + 100ms);
}

.process-timeline.is-visible .process-step {
  opacity: 1;
  transform: translateY(0);
}

.process-step {
  position: relative;
}

.process-step__preview {
  display: none;
}

@media (hover: hover) and (min-width: 681px) {
  .process-step {
    cursor: default;
  }

  .process-step__preview {
    display: block;
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    z-index: 20;
    width: min(280px, 100%);
    margin: 0;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-quantum-dim);
    box-shadow: 0 20px 50px -12px rgba(0, 0, 0, 0.75), 0 0 30px -8px rgba(51, 224, 255, 0.3);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translate(-50%, 10px) scale(0.96);
    transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease), visibility 0s linear var(--dur-base);
  }

  .process-step__preview img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 10;
    object-fit: cover;
  }

  .process-step:hover .process-step__preview,
  .process-step:focus-visible .process-step__preview {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0) scale(1);
    transition-delay: 0s;
  }
}

@media (hover: none), (max-width: 680px) {
  .process-step {
    flex-wrap: wrap;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }

  .process-step__content {
    flex: 1 1 0;
    min-width: 0;
  }

  .process-step__title::after {
    content: '+';
    margin-left: 0.5em;
    font-family: var(--font-mono);
    color: var(--color-quantum);
  }

  .process-step.is-open .process-step__title::after {
    content: '–';
  }

  .process-step__preview {
    display: block;
    flex: 0 0 100%;
    max-height: 0;
    margin: 0;
    overflow: hidden;
    border-radius: var(--radius);
    opacity: 0;
    transition: max-height 400ms var(--ease), opacity var(--dur-base) var(--ease), margin var(--dur-base) var(--ease);
  }

  .process-step.is-open .process-step__preview {
    max-height: 360px;
    margin-top: var(--space-2);
    opacity: 1;
    border: 1px solid var(--color-quantum-dim);
  }

  .process-step__preview img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 10;
    object-fit: cover;
  }
}

@media (max-width: 680px) {
  .process-step__preview {
    flex-basis: auto;
    width: calc(100% - 60px);
    margin-left: 60px;
  }
}

.process-step__marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-quantum-dim);
  color: var(--color-quantum);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.process-step__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.process-step__title {
  font-size: 1.05rem;
}

.process-step__desc {
  font-size: var(--fs-small);
  max-width: 24ch;
  margin: 0 auto;
}

@media (max-width: 680px) {
  .process-track {
    top: 0;
    bottom: 0;
    left: 22px;
    right: auto;
    width: 2px;
    height: auto;
  }

  .process-track__fill {
    width: 100%;
    height: 0%;
    transition: height 1200ms var(--ease);
  }

  .process-timeline.is-visible .process-track__fill {
    height: 100%;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .process-step {
    flex-direction: row;
    align-items: flex-start;
    text-align: left;
  }

  .process-step__desc {
    max-width: none;
    margin: 0;
  }
}

/* --------------------------------------------------------------------------
   Tech stack marquee
   -------------------------------------------------------------------------- */

.section--stack {
  padding-bottom: var(--space-6);
}

.section--stack .section__inner {
  margin-bottom: var(--space-5);
}

.marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent 0, black 64px, black calc(100% - 64px), transparent 100%);
  mask-image: linear-gradient(to right, transparent 0, black 64px, black calc(100% - 64px), transparent 100%);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 26s linear infinite;
}

.marquee:hover .marquee__track,
.marquee:not(.is-onscreen) .marquee__track {
  animation-play-state: paused;
}

@keyframes marquee-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.marquee__group {
  display: flex;
  flex-shrink: 0;
  gap: var(--space-7);
  padding: 0 calc(var(--space-7) / 2);
}

.marquee__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  white-space: nowrap;
}

.marquee__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.marquee__icon svg {
  filter: grayscale(1);
  opacity: 0.6;
  transition: filter var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
}

.marquee__item:hover .marquee__icon svg {
  filter: grayscale(0);
  opacity: 1;
}

.marquee__name {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--color-text-dim);
  transition: color var(--dur-base) var(--ease);
}

.marquee__item:hover .marquee__name {
  color: var(--color-text);
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track {
    animation: none;
  }

  .marquee__group[aria-hidden="true"] {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Stats band
   -------------------------------------------------------------------------- */

.section--stats {
  position: relative;
  overflow: hidden;
}

.stats__bg {
  position: absolute;
  top: -21%;
  left: -21%;
  width: 142%;
  height: 142%;
  z-index: 0;
  opacity: 0.07;
  background-image:
    linear-gradient(var(--color-quantum) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-quantum) 1px, transparent 1px);
  background-size: 42px 42px;
  animation: stats-drift 60s linear infinite;
  pointer-events: none;
  will-change: transform;
}

.section--stats:not(.is-onscreen) .stats__bg {
  animation-play-state: paused;
}

@keyframes stats-drift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    /* one full tile of the 42px grid — the loop restart is seamless */
    transform: translate3d(-42px, -42px, 0);
  }
}

.section--stats .section__inner {
  position: relative;
  z-index: 1;
}

.stats__eyebrow {
  display: block;
  text-align: center;
  margin-bottom: var(--space-5);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
}

.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 3vw + 1rem, 3rem);
  font-weight: 500;
  color: var(--color-quantum);
  letter-spacing: -0.01em;
}

.stat__label {
  font-size: var(--fs-small);
  color: var(--color-text-dim);
}

@media (max-width: 900px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  .stats__bg {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   Testimonial carousel
   -------------------------------------------------------------------------- */

.testimonial-carousel {
  position: relative;
  width: 100%;
  min-width: 0;
  max-width: 760px;
  margin: 0 auto;
}

.testimonial-carousel__viewport {
  overflow: hidden;
  border-radius: var(--radius);
  min-width: 0;
}

.testimonial-carousel__track {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
  transition: transform 500ms var(--ease);
}

.testimonial-card {
  flex: 1 0 100%;
  min-width: 0;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-5);
  min-height: 240px;
  padding: var(--space-6) calc(var(--space-6) + var(--space-4));
  background: rgba(23, 27, 36, 0.55);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid rgba(255, 122, 51, 0.35);
  box-shadow: 0 0 44px -14px rgba(255, 122, 51, 0.4);
}

.testimonial-card__quote {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--color-text);
  text-align: center;
}

.testimonial-card__quote::before {
  content: '\201C';
}

.testimonial-card__quote::after {
  content: '\201D';
}

.testimonial-card__author {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
}

.testimonial-card__name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
}

.testimonial-card__role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

.testimonial-carousel__arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.testimonial-carousel__arrow:hover {
  border-color: var(--color-molten-dim);
  background: rgba(255, 122, 51, 0.1);
  color: var(--color-molten);
}

.testimonial-carousel__arrow--prev {
  left: 10px;
}

.testimonial-carousel__arrow--next {
  right: 10px;
}

.testimonial-carousel__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border-radius: 50%;
  background: var(--color-border);
  transition: background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.dot:hover {
  background: var(--color-molten-dim);
}

.dot.is-active {
  background: var(--color-molten);
  transform: scale(1.3);
}

@media (max-width: 640px) {
  .testimonial-card {
    padding: var(--space-6) var(--space-5);
    min-height: 280px;
  }

  .testimonial-carousel__arrow {
    width: 34px;
    height: 34px;
  }

  .testimonial-carousel__arrow--prev {
    left: 2px;
  }

  .testimonial-carousel__arrow--next {
    right: 2px;
  }
}

.placeholder-tag {
  color: var(--color-molten);
  border: 1px dashed var(--color-molten-dim);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  width: fit-content;
}

.placeholder-note {
  max-width: 46ch;
  font-size: var(--fs-small);
}

/* --------------------------------------------------------------------------
   CTA — boldest visual moment on the page
   -------------------------------------------------------------------------- */

.section--cta {
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
  padding-top: calc(var(--space-8) + var(--space-3));
  padding-bottom: calc(var(--space-8) + var(--space-3));
}

.cta__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}

.cta__copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cta__heading {
  font-size: clamp(2rem, 3.5vw + 1rem, 3.2rem);
}

.cta__subhead {
  font-size: 1.1rem;
  max-width: 42ch;
}

.cta__contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-6);
  font-size: var(--fs-small);
  color: var(--color-text-dim);
}

.cta__contact li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-1);
}

.cta__contact span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-quantum);
}

.cta__contact a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cta__contact a:hover {
  color: var(--color-quantum);
}

.cta__form {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  padding: var(--space-6);
  background: rgba(18, 21, 28, 0.62);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-field label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.form-field input,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.form-choice {
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}

.form-choice legend {
  padding: 0;
  margin-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.form-choice__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.form-choice__options label {
  position: relative;
  flex: 1 1 auto;
  font-family: var(--font-body);
  font-size: 0.95rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--color-text);
}

.form-choice__options input {
  position: absolute;
  opacity: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}

.form-choice__options span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.5rem 0.9rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.form-choice__options input:checked + span {
  border-color: var(--color-molten);
  background: rgba(255, 122, 51, 0.12);
}

.form-choice__options input:focus-visible + span {
  box-shadow: 0 0 0 3px rgba(51, 224, 255, 0.35);
  border-color: var(--color-quantum-dim);
}

.form-field textarea {
  resize: vertical;
  min-height: 96px;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-quantum-dim);
  box-shadow: 0 0 0 3px rgba(51, 224, 255, 0.15);
}

.form-field--wide,
.cta__submit,
.cta__form-note {
  grid-column: 1 / -1;
}

.cta__submit {
  width: 100%;
  margin-top: var(--space-2);
  padding: 0.85rem 1.4rem;
  font-size: 0.95rem;
}

.cta__form-note {
  min-height: 1.2em;
  font-size: var(--fs-small);
  color: var(--color-text-dim);
  text-align: center;
}

.cta__form-note.is-success {
  color: var(--color-quantum);
}

.cta__form-note.is-error {
  color: #ff9d7a;
}

.cta__submit:disabled {
  opacity: 0.7;
  cursor: wait;
}

@media (max-width: 1000px) {
  .cta__form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .cta__form {
    grid-template-columns: minmax(0, 1fr);
    padding: var(--space-4);
  }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer {
  padding: var(--space-6) 0 var(--space-6);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__logo {
  display: flex;
  align-items: center;
  min-height: 44px;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
}

.footer__logo-mark {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.footer__logo-sub {
  color: var(--color-text-dim);
  font-weight: 600;
  margin-left: 0.35em;
}

.footer__tagline {
  font-size: var(--fs-small);
  color: var(--color-text-dim);
  max-width: 26ch;
}

.footer__col-title {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: var(--space-3);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__links a {
  font-size: var(--fs-small);
  color: var(--color-text-dim);
  transition: color var(--dur-fast) var(--ease);
}

.footer__links a:hover {
  color: var(--color-text);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-5);
}

.footer__copyright {
  font-size: 0.78rem;
  color: var(--color-text-dim);
}

.footer__socials {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: var(--color-text-dim);
  border: 1px solid var(--color-border);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.footer__social svg {
  width: 16px;
  height: 16px;
}

.footer__social:hover {
  color: var(--color-text);
  border-color: var(--color-text-dim);
}

@media (max-width: 900px) {
  .footer__top {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .footer__top {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .footer__brand {
    grid-column: auto;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* --------------------------------------------------------------------------
   Service-card "learn more" links, footer contact block
   -------------------------------------------------------------------------- */

.service-card__link {
  margin-top: auto;
  padding-top: var(--space-2);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: fit-content;
  min-height: 44px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-small);
  color: var(--color-quantum);
}

.service-card__link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer__address {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: var(--space-2);
  font-style: normal;
  font-size: var(--fs-small);
  color: var(--color-text-dim);
}

.footer__address a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  width: fit-content;
  transition: color var(--dur-fast) var(--ease);
}

.footer__address a:hover {
  color: var(--color-text);
}

.footer__address span {
  padding-top: 0.5rem;
  max-width: 34ch;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Content pages (services, about, blog)
   -------------------------------------------------------------------------- */

.page-hero {
  padding: calc(var(--space-7) + var(--space-3)) 0 var(--space-6);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.page-hero .section__inner {
  gap: var(--space-4);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--color-text-dim);
}

.breadcrumb {
  align-items: center;
}

.breadcrumb a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.breadcrumb a:hover {
  color: var(--color-text);
}

.page-hero h1 {
  max-width: 24ch;
  font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
}

.page-hero__lead {
  max-width: 62ch;
  font-size: 1.15rem;
}

.page-body {
  padding: var(--space-7) 0;
}

.prose {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 760px;
}

.prose h2 {
  margin-top: var(--space-5);
  font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  font-size: 1.15rem;
}

.prose p {
  font-size: 1.03rem;
  line-height: 1.75;
}

.prose strong {
  color: var(--color-text);
}

.prose a:not(.btn) {
  color: var(--color-quantum);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose a:not(.btn):hover {
  color: var(--color-text);
}

.prose ul,
.prose ol {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.prose li {
  position: relative;
  color: var(--color-text-dim);
  line-height: 1.65;
}

.prose ul li {
  padding-left: 1.6rem;
}

.prose ul li::before {
  content: '';
  position: absolute;
  left: 0.15rem;
  top: 0.62em;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-quantum);
  transform: rotate(45deg);
}

.prose ol {
  counter-reset: step;
}

.prose ol li {
  padding-left: 3rem;
  counter-increment: step;
}

.prose ol li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-quantum);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.prose table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: var(--fs-small);
}

.prose th,
.prose td {
  padding: 0.85rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
}

.prose th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  background: var(--color-surface-raised);
}

.prose tr:last-child td {
  border-bottom: 0;
}

.prose td:first-child {
  color: var(--color-text);
  font-weight: 600;
}

.faq {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.faq details {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text);
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: '+';
  flex-shrink: 0;
  font-family: var(--font-mono);
  color: var(--color-quantum);
}

.faq details[open] summary::after {
  content: '–';
}

.faq details p {
  padding: 0 var(--space-4) var(--space-3);
}

.section--faq .faq {
  max-width: 900px;
}

.faq a {
  color: var(--color-quantum);
}

.faq summary:focus-visible {
  outline: 2px solid var(--color-quantum);
  outline-offset: 2px;
  border-radius: var(--radius);
}

.page-cta {
  background: var(--color-surface);
}

.page-cta .section__inner {
  gap: var(--space-4);
  max-width: 760px;
  margin-left: 0;
}

.page-cta h2 {
  font-size: clamp(1.5rem, 2vw + 1rem, 2.1rem);
}

.page-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--fs-small);
}

.page-cta__links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-quantum);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-dim);
}

.post-meta a {
  color: var(--color-quantum);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-summary {
  padding: var(--space-4);
  border-left: 3px solid var(--color-quantum);
  background: var(--color-surface-raised);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.post-summary p {
  color: var(--color-text);
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.post-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.post-card:hover,
.post-card:focus-visible {
  border-color: var(--color-quantum-dim);
  transform: translateY(-2px);
}

.post-card h2 {
  font-size: 1.3rem;
}

.post-card p {
  font-size: var(--fs-small);
}

.prose .post-meta {
  font-size: 0.78rem;
  line-height: 1.5;
}