/* ==========================================================================
   Cobalt Kin — Digital Solutions Studio
   Shared design system: tokens, base, components, sections, responsive
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  /* palette */
  --ink: #0b0b0f;
  --ink-2: #14141b;
  --ink-3: #1e1e27;
  --paper: #f6f3ed;
  --paper-2: #ece7dc;
  --paper-3: #e0d9ca;
  --cobalt: #2c3cff;
  --cobalt-light: #5a68ff;
  --lime: #d9ff43;
  --coral: #ff6a4d;

  --on-dark: #f6f3ed;
  --on-dark-muted: rgba(246, 243, 237, 0.62);
  --on-dark-faint: rgba(246, 243, 237, 0.16);
  --on-light-muted: rgba(11, 11, 15, 0.62);
  --on-light-faint: rgba(11, 11, 15, 0.12);

  /* type */
  --font-sans: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* layout */
  --max: 1280px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;

  /* motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.55s;

  --header-h: 76px;
}

/* ---------- 2. Reset & base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--on-dark);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.95rem + 0.15vw, 1.0625rem);
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: -0.008em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

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

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
  text-wrap: balance;
}

p { margin: 0; }

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

::selection { background: var(--lime); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 3. Layout helpers ---------- */
.shell {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(4.5rem, 9vw, 8.5rem);
  position: relative;
}

.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

.rule {
  height: 1px;
  background: var(--on-dark-faint);
  border: 0;
  margin: 0;
}

/* theme: light section */
.is-light {
  background: var(--paper);
  color: var(--ink);
}
.is-light .rule { background: rgba(11, 11, 15, 0.14); }

/* ---------- 4. Typography ---------- */
.display {
  font-size: clamp(2.75rem, 8.4vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: -0.045em;
  font-weight: 500;
}

.h2 {
  font-size: clamp(2.1rem, 5.1vw, 4.25rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.h3 {
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.serif-accent {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
}
.is-light .eyebrow { color: var(--on-light-muted); }

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  flex: none;
}
.is-light .eyebrow::before { background: var(--cobalt); }

.lede {
  font-size: clamp(1.05rem, 1.2vw, 1.3rem);
  line-height: 1.55;
  color: var(--on-dark-muted);
  max-width: 56ch;
}
.is-light .lede { color: var(--on-light-muted); }

.muted { color: var(--on-dark-muted); }
.is-light .muted { color: var(--on-light-muted); }

/* ---------- 5. Buttons ---------- */
.btn {
  --btn-bg: var(--lime);
  --btn-fg: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.95rem 1.5rem;
  min-height: 50px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform 0.35s var(--ease), background 0.3s, color 0.3s, border-color 0.3s, box-shadow 0.35s;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn .arrow { transition: transform 0.35s var(--ease); }
.btn:hover .arrow { transform: translate(3px, -3px); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--on-dark);
  border-color: var(--on-dark-faint);
}
.btn--ghost:hover {
  border-color: var(--on-dark);
  background: rgba(246, 243, 237, 0.06);
}
.is-light .btn--ghost {
  --btn-fg: var(--ink);
  border-color: rgba(11, 11, 15, 0.22);
}
.is-light .btn--ghost:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn--ink {
  --btn-bg: var(--ink);
  --btn-fg: var(--paper);
}

.btn--sm {
  min-height: 42px;
  padding: 0.6rem 1.15rem;
  font-size: 0.85rem;
}

/* text link with underline sweep */
.link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.95rem;
  font-weight: 500;
  padding-bottom: 2px;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.4s var(--ease);
}
.link:hover { background-size: 0% 1px; }

/* ---------- 6. Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), border-color 0.4s, backdrop-filter 0.4s, height 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-stuck {
  height: 64px;
  background: rgba(11, 11, 15, 0.82);
  border-bottom-color: var(--on-dark-faint);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}

.site-header__inner {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  flex: none;
}

.brand__mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--cobalt) 0%, #6d5bff 48%, var(--lime) 100%);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 22px rgba(44, 60, 255, 0.35);
  flex: none;
}
.brand__mark svg { width: 15px; height: 15px; }

.brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  font-weight: 400;
  line-height: 1;
  margin-top: 3px;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2.1rem);
}

.nav__link {
  position: relative;
  font-size: 0.92rem;
  color: var(--on-dark-muted);
  transition: color 0.25s;
  padding-block: 0.4rem;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 100%;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav__link:hover { color: var(--on-dark); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--on-dark); }

.site-header__cta { display: flex; align-items: center; gap: 0.75rem; }

/* burger */
.burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--on-dark-faint);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  position: relative;
  flex: none;
}
.burger span {
  position: absolute;
  left: 50%;
  width: 17px;
  height: 1.5px;
  background: var(--on-dark);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: transform 0.35s var(--ease), opacity 0.25s;
}
.burger span:nth-child(1) { top: 17px; }
.burger span:nth-child(2) { top: 22px; }
.burger span:nth-child(3) { top: 27px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateX(-50%) translateY(5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateX(-50%) translateY(-5px) rotate(-45deg); }

/* mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--ink-2);
  padding: calc(var(--header-h) + 2rem) var(--gutter) 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform 0.55s var(--ease), visibility 0.55s;
}
.drawer.is-open { transform: translateY(0); visibility: visible; }

.drawer__nav { display: flex; flex-direction: column; gap: 0.15rem; }
.drawer__nav a {
  font-size: clamp(2rem, 9vw, 2.9rem);
  letter-spacing: -0.04em;
  padding-block: 0.45rem;
  border-bottom: 1px solid var(--on-dark-faint);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.drawer__nav a span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--on-dark-muted);
  letter-spacing: 0.1em;
}
.drawer__foot { display: grid; gap: 1.25rem; }
.drawer__foot a { color: var(--on-dark-muted); font-size: 0.95rem; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(2rem, 5vw, 4rem));
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  width: 62vw;
  height: 62vw;
  max-width: 820px;
  max-height: 820px;
  right: -18vw;
  top: -14vw;
  background: radial-gradient(circle at 50% 50%, rgba(44, 60, 255, 0.55), rgba(44, 60, 255, 0) 62%);
  filter: blur(28px);
  pointer-events: none;
  z-index: 0;
  animation: drift 18s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-4%, 6%, 0) scale(1.12); }
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: end;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.42rem 0.85rem 0.42rem 0.5rem;
  border: 1px solid var(--on-dark-faint);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}
.hero__badge b {
  color: var(--ink);
  background: var(--lime);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.hero__title { margin-bottom: clamp(1.25rem, 2.5vw, 2rem); }
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > span {
  display: block;
  transform: translateY(105%);
  animation: rise 0.95s var(--ease) forwards;
}
.hero__title .line:nth-child(1) > span { animation-delay: 0.08s; }
.hero__title .line:nth-child(2) > span { animation-delay: 0.18s; }
.hero__title .line:nth-child(3) > span { animation-delay: 0.28s; }

@keyframes rise { to { transform: translateY(0); } }

.hero__title .serif-accent { color: var(--lime); }

.hero__sub {
  max-width: 44ch;
  font-size: clamp(1rem, 1.15vw, 1.16rem);
  color: var(--on-dark-muted);
  margin-bottom: clamp(1.75rem, 3vw, 2.5rem);
}

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

/* hero media collage */
.hero__media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 0.75rem;
  position: relative;
}
.hero__media figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-3);
  position: relative;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease);
}
.hero__media figure:hover img { transform: scale(1.05); }
.hero__media .tall { grid-row: span 2; aspect-ratio: 3 / 4.4; }
.hero__media .wide { aspect-ratio: 1 / 1; }
.hero__media .tag {
  position: absolute;
  left: 0.7rem;
  bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(11, 11, 15, 0.72);
  backdrop-filter: blur(8px);
  padding: 0.28rem 0.55rem;
  border-radius: 6px;
  color: var(--on-dark);
}

/* stat strip */
.stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  background: var(--on-dark-faint);
  border-block: 1px solid var(--on-dark-faint);
}
.stats__item {
  background: var(--ink);
  padding: 1.4rem 0.35rem 1.5rem;
}
.stats__item:first-child { padding-left: 0; }
.stats__num {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  letter-spacing: -0.04em;
  line-height: 1;
  font-weight: 500;
  display: flex;
  align-items: baseline;
  gap: 0.1em;
}
.stats__num sup {
  font-size: 0.42em;
  color: var(--lime);
  top: -0.7em;
  position: relative;
}
.stats__label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  margin-top: 0.6rem;
}

/* ---------- 8. Marquee ---------- */
.marquee {
  display: flex;
  overflow: hidden;
  user-select: none;
  gap: 0;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  align-items: center;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  padding-right: clamp(1.75rem, 4vw, 3.5rem);
  flex: none;
  min-width: 100%;
  animation: scroll-x 34s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item {
  font-size: clamp(1.05rem, 1.6vw, 1.4rem);
  letter-spacing: -0.02em;
  font-weight: 500;
  color: var(--on-dark-muted);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  transition: color 0.3s;
}
.marquee__item::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cobalt-light);
  flex: none;
}
.marquee__item:hover { color: var(--on-dark); }

@keyframes scroll-x {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

/* ---------- 9. Section heading ---------- */
.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  margin-bottom: clamp(2.25rem, 4.5vw, 3.75rem);
}
.sec-head__aside { display: grid; gap: 1.25rem; justify-items: start; }
@media (min-width: 900px) {
  .sec-head__aside { justify-items: end; text-align: right; }
}

/* ---------- 10. Services ---------- */
.services {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(11, 11, 15, 0.14);
  border: 1px solid rgba(11, 11, 15, 0.14);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-card {
  background: var(--paper);
  padding: clamp(1.5rem, 2.4vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  transition: background 0.4s var(--ease);
  min-height: 250px;
}
.service-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: var(--cobalt);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.service-card:hover { background: #fffdf8; }
.service-card:hover::after { transform: scaleX(1); }

.service-card__num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--on-light-muted);
}
.service-card h3 { font-size: 1.35rem; letter-spacing: -0.03em; }
.service-card p { color: var(--on-light-muted); font-size: 0.95rem; line-height: 1.55; }

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.75rem;
}
.chip {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.28rem 0.5rem;
  border: 1px solid rgba(11, 11, 15, 0.16);
  border-radius: 5px;
  color: var(--on-light-muted);
  white-space: nowrap;
}

/* ---------- 11. Work grid ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 2.2vw, 1.75rem);
}

.case {
  display: block;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-3);
  isolation: isolate;
}
.case--wide { grid-column: span 2; }

.case__img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.9s var(--ease), filter 0.6s;
}
.case--wide .case__img { aspect-ratio: 21 / 9; }
.case:hover .case__img { transform: scale(1.045); }

.case__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 6, 10, 0.92) 0%, rgba(6, 6, 10, 0.55) 32%, rgba(6, 6, 10, 0.05) 62%);
  transition: opacity 0.5s;
}

.case__body {
  position: absolute;
  inset: auto 0 0 0;
  padding: clamp(1.1rem, 2.4vw, 1.9rem);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}
.case__meta {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(246, 243, 237, 0.72);
  margin-bottom: 0.5rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
}
.case__meta span.dot { width: 3px; height: 3px; border-radius: 50%; background: var(--lime); }
.case__title {
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  letter-spacing: -0.03em;
  color: var(--on-dark);
  line-height: 1.1;
}
.case__result { font-size: 0.86rem; color: rgba(246, 243, 237, 0.68); margin-top: 0.35rem; }

.case__go {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(246, 243, 237, 0.3);
  display: grid;
  place-items: center;
  flex: none;
  transition: background 0.35s, color 0.35s, transform 0.45s var(--ease), border-color 0.35s;
  color: var(--on-dark);
  background: rgba(11, 11, 15, 0.3);
  backdrop-filter: blur(6px);
}
.case:hover .case__go {
  background: var(--lime);
  color: var(--ink);
  border-color: var(--lime);
  transform: rotate(45deg);
}

/* filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}
.filter {
  border: 1px solid var(--on-dark-faint);
  background: transparent;
  color: var(--on-dark-muted);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  min-height: 40px;
}
.filter:hover { border-color: var(--on-dark); color: var(--on-dark); }
.filter[aria-pressed="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}
.is-light .filter { border-color: rgba(11, 11, 15, 0.18); color: var(--on-light-muted); }
.is-light .filter:hover { border-color: var(--ink); color: var(--ink); }
.is-light .filter[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.filter__count {
  font-family: var(--font-mono);
  font-size: 0.68em;
  opacity: 0.6;
  margin-left: 0.25rem;
}

.case.hide { display: none; }

.work-empty {
  padding: 2rem 0;
  color: var(--on-light-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- 12. Process ---------- */
.process {
  counter-reset: step;
  border-top: 1px solid var(--on-dark-faint);
}
.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(1rem, 3vw, 3rem);
  padding-block: clamp(1.5rem, 3vw, 2.35rem);
  border-bottom: 1px solid var(--on-dark-faint);
  align-items: start;
  transition: background 0.4s var(--ease), padding-left 0.4s var(--ease);
}
.step:hover { background: rgba(246, 243, 237, 0.035); }
.step::before {
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--lime);
  padding-top: 0.35rem;
}
.step h3 { font-size: clamp(1.2rem, 2vw, 1.65rem); letter-spacing: -0.03em; }
.step p { color: var(--on-dark-muted); font-size: 0.95rem; }
.step__detail {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  margin-top: 0.7rem;
}

/* ---------- 13. Testimonials ---------- */
.quotes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}
.quote {
  background: var(--paper);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 2.4vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  border: 1px solid rgba(11, 11, 15, 0.1);
}
.quote__stars { color: var(--cobalt); letter-spacing: 0.15em; font-size: 0.8rem; }
.quote p {
  font-size: clamp(1.02rem, 1.3vw, 1.14rem);
  line-height: 1.5;
  letter-spacing: -0.015em;
}
.quote footer { margin-top: auto; display: flex; align-items: center; gap: 0.7rem; }
.avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
  flex: none;
  letter-spacing: 0;
}
.quote__name { font-size: 0.9rem; font-weight: 500; letter-spacing: -0.02em; }
.quote__role { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.09em; text-transform: uppercase; color: var(--on-light-muted); margin-top: 2px; }

/* ---------- 14. CTA band ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background: var(--cobalt);
  color: var(--paper);
  border-radius: var(--radius-lg);
  padding: clamp(2.25rem, 5vw, 4.5rem);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}
.cta-band::before {
  content: "";
  position: absolute;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  right: -12rem;
  top: -16rem;
  background: radial-gradient(circle, rgba(217, 255, 67, 0.55), rgba(217, 255, 67, 0) 68%);
  pointer-events: none;
}
.cta-band h2 {
  font-size: clamp(1.9rem, 4.2vw, 3.4rem);
  letter-spacing: -0.04em;
  line-height: 1;
  position: relative;
}
.cta-band p { color: rgba(246, 243, 237, 0.82); margin-top: 1rem; max-width: 44ch; position: relative; }
.cta-band__actions { display: flex; flex-direction: column; align-items: flex-start; gap: 0.9rem; position: relative; }
.cta-band__actions .btn--ink { --btn-bg: var(--ink); --btn-fg: var(--paper); }
.cta-band__actions small { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(246, 243, 237, 0.72); }

/* ---------- 15. Footer ---------- */
.site-footer {
  background: var(--ink);
  border-top: 1px solid var(--on-dark-faint);
  padding-top: clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}
.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 0.6fr));
  gap: clamp(1.75rem, 4vw, 3rem);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}
.footer__brand p { color: var(--on-dark-muted); font-size: 0.94rem; max-width: 34ch; margin-top: 1rem; }
.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  font-weight: 400;
  margin-bottom: 1rem;
}
.footer__col ul { display: grid; gap: 0.55rem; }
.footer__col a { font-size: 0.94rem; color: rgba(246, 243, 237, 0.82); transition: color 0.25s, padding-left 0.3s var(--ease); }
.footer__col a:hover { color: var(--lime); padding-left: 3px; }

.footer__wordmark {
  font-size: clamp(3.5rem, 13vw, 11rem);
  line-height: 0.8;
  letter-spacing: -0.055em;
  font-weight: 500;
  color: transparent;
  -webkit-text-stroke: 1px rgba(246, 243, 237, 0.18);
  padding-block: clamp(1rem, 2vw, 1.5rem);
  user-select: none;
  white-space: nowrap;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--on-dark-faint);
  padding-block: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
}
.footer__social { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.footer__social a:hover { color: var(--lime); }

/* ---------- 16. Page hero (inner pages) ---------- */
.page-hero {
  padding-top: calc(var(--header-h) + clamp(3rem, 7vw, 6rem));
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--on-dark-faint);
}
.page-hero__glow {
  position: absolute;
  width: 46vw;
  height: 46vw;
  max-width: 640px;
  max-height: 640px;
  left: -12vw;
  top: -18vw;
  background: radial-gradient(circle, rgba(44, 60, 255, 0.42), rgba(44, 60, 255, 0) 66%);
  filter: blur(20px);
  pointer-events: none;
}
.page-hero__inner { position: relative; }
.page-hero h1 {
  font-size: clamp(2.4rem, 7vw, 5.6rem);
  letter-spacing: -0.045em;
  line-height: 0.95;
  max-width: 18ch;
  margin-block: 1.25rem 1.5rem;
}
.page-hero .lede { max-width: 52ch; }

.crumbs {
  display: flex;
  gap: 0.45rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
}
.crumbs a:hover { color: var(--lime); }

/* ---------- 17. Service detail rows ---------- */
.offer {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: clamp(2.25rem, 4.5vw, 3.5rem);
  border-top: 1px solid var(--on-dark-faint);
  align-items: start;
}
.offer:last-of-type { border-bottom: 1px solid var(--on-dark-faint); }
.offer__head { display: grid; gap: 1rem; }
.offer__index {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--lime);
}
.offer h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); letter-spacing: -0.035em; }
.offer__body { display: grid; gap: 1.35rem; }
.offer__body > p { color: var(--on-dark-muted); }
.offer__list { display: grid; gap: 0; }
.offer__list li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding-block: 0.65rem;
  border-bottom: 1px solid var(--on-dark-faint);
  font-size: 0.94rem;
}
.offer__list li:last-child { border-bottom: 0; }
.offer__list li::before {
  content: "→";
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  flex: none;
  padding-top: 0.15rem;
}
.offer__price {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  padding-top: 0.9rem;
}

/* ---------- 18. Accordion ---------- */
.accordion { border-top: 1px solid rgba(11, 11, 15, 0.16); }
.acc__item { border-bottom: 1px solid rgba(11, 11, 15, 0.16); }
.acc__btn {
  width: 100%;
  background: none;
  border: 0;
  padding: 1.25rem 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  text-align: left;
  cursor: pointer;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  min-height: 58px;
}
.acc__icon {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid rgba(11, 11, 15, 0.25);
  display: grid;
  place-items: center;
  position: relative;
  transition: background 0.3s, border-color 0.3s, transform 0.4s var(--ease);
}
.acc__icon::before,
.acc__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 2px;
}
.acc__icon::before { width: 10px; height: 1.5px; }
.acc__icon::after { width: 1.5px; height: 10px; transition: transform 0.35s var(--ease); }
.acc__btn[aria-expanded="true"] .acc__icon { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.acc__btn[aria-expanded="true"] .acc__icon::after { transform: scaleY(0); }
.acc__panel {
  overflow: hidden;
  height: 0;
  transition: height 0.42s var(--ease);
}
.acc__panel > div {
  padding: 0 0 1.4rem;
  color: var(--on-light-muted);
  max-width: 68ch;
  font-size: 0.96rem;
}

/* accordion on a dark surface */
.accordion--dark,
.accordion--dark.accordion { border-top-color: var(--on-dark-faint); }
.accordion--dark .acc__item { border-bottom-color: var(--on-dark-faint); }
.accordion--dark .acc__btn { color: var(--on-dark); }
.accordion--dark .acc__icon { border-color: var(--on-dark-faint); }
.accordion--dark .acc__btn[aria-expanded="true"] .acc__icon {
  background: var(--lime);
  color: var(--ink);
  border-color: var(--lime);
}
.accordion--dark .acc__panel > div { color: var(--on-dark-muted); }

/* ---------- 19. Studio / about ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 4.5rem);
  align-items: center;
}
.split--top { align-items: start; }

.figure-plain {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-3);
}
.figure-plain img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.figure-plain figcaption {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.75rem 0;
  color: var(--on-dark-muted);
}
.is-light .figure-plain figcaption { color: var(--on-light-muted); }

.values { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--on-dark-faint); border: 1px solid var(--on-dark-faint); border-radius: var(--radius); overflow: hidden; }
.value { background: var(--ink); padding: clamp(1.35rem, 2.2vw, 1.9rem); display: grid; gap: 0.7rem; align-content: start; }
.value__icon { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: rgba(217, 255, 67, 0.12); color: var(--lime); }
.value h3 { font-size: 1.08rem; letter-spacing: -0.02em; }
.value p { font-size: 0.92rem; color: var(--on-dark-muted); line-height: 1.55; }

.people { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(1rem, 2vw, 1.5rem); }
.person { display: grid; gap: 0.85rem; }
.person__photo {
  aspect-ratio: 3 / 3.6;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--ink);
  overflow: hidden;
}
.person h3 { font-size: 1rem; letter-spacing: -0.02em; }
.person span {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  display: block;
  margin-top: 0.3rem;
}
.is-light .person span { color: var(--on-light-muted); }

.timeline { display: grid; gap: 0; border-top: 1px solid rgba(11, 11, 15, 0.16); }
.timeline li {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 1.5rem;
  padding-block: 1.35rem;
  border-bottom: 1px solid rgba(11, 11, 15, 0.16);
  align-items: baseline;
}
.timeline b { font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.08em; color: var(--cobalt); font-weight: 500; }
.timeline p { font-size: 0.96rem; }
.timeline p span { color: var(--on-light-muted); display: block; font-size: 0.9rem; }

/* ---------- 20. Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: 0.5rem; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-light-muted);
}
.field label .req { color: var(--coral); }
.field input,
.field textarea,
.field select {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(11, 11, 15, 0.24);
  padding: 0.7rem 0.1rem;
  font-size: 1rem;
  border-radius: 0;
  transition: border-color 0.3s, background 0.3s;
  color: var(--ink);
  -webkit-appearance: none;
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%230b0b0f' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.2rem center;
  padding-right: 1.5rem;
}
.field textarea { min-height: 118px; resize: vertical; line-height: 1.55; }
.field input::placeholder,
.field textarea::placeholder { color: rgba(11, 11, 15, 0.36); }
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-bottom-color: var(--ink);
}
.field.has-error input,
.field.has-error textarea,
.field.has-error select { border-bottom-color: var(--coral); }
.field__error {
  color: #c8331a;
  font-size: 0.78rem;
  min-height: 0;
  display: none;
}
.field.has-error .field__error { display: block; }

.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }

.budget-options { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.budget-options label {
  position: relative;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--ink);
  padding: 0.5rem 0.9rem;
  border: 1px solid rgba(11, 11, 15, 0.2);
  border-radius: 999px;
  transition: all 0.25s var(--ease);
}
.budget-options input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.budget-options label:hover { border-color: var(--ink); }
.budget-options input:checked + span { color: var(--ink); }
.budget-options label:has(input:checked) { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.budget-options input:focus-visible + span { outline: 2px solid var(--cobalt); outline-offset: 3px; border-radius: 4px; }

.form__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 0.5rem; }
.form__foot small { font-size: 0.78rem; color: var(--on-light-muted); max-width: 30ch; }

.form__status {
  display: none;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 1rem 1.15rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  margin-top: 0.5rem;
}
.form__status.is-visible { display: flex; }
.form__status.ok { background: rgba(44, 60, 255, 0.08); border: 1px solid rgba(44, 60, 255, 0.28); }
.form__status.err { background: rgba(200, 51, 26, 0.07); border: 1px solid rgba(200, 51, 26, 0.3); }

.contact-aside { display: grid; gap: 1px; background: rgba(11, 11, 15, 0.14); border: 1px solid rgba(11, 11, 15, 0.14); border-radius: var(--radius); overflow: hidden; }
.info-block { background: var(--paper); padding: clamp(1.25rem, 2.2vw, 1.75rem); display: grid; gap: 0.5rem; }
.info-block h3 {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--on-light-muted);
  font-weight: 400;
}
.info-block a, .info-block p { font-size: 1rem; letter-spacing: -0.02em; }
.info-block a:hover { color: var(--cobalt); }
.info-block small { color: var(--on-light-muted); font-size: 0.84rem; }

/* ---------- 21. Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  will-change: opacity, transform;
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* content must never stay hidden in print or non-scrolling renderers */
@media print {
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .site-header, .to-top, .drawer { display: none !important; }
}

/* ---------- 22. Back to top ---------- */
.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--on-dark-faint);
  background: rgba(11, 11, 15, 0.72);
  backdrop-filter: blur(10px);
  color: var(--on-dark);
  display: grid;
  place-items: center;
  cursor: pointer;
  z-index: 60;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.35s, visibility 0.35s, transform 0.35s var(--ease), background 0.3s;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--lime); color: var(--ink); border-color: var(--lime); }

/* ---------- 23. Utilities ---------- */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.75rem; }
.mt-4 { margin-top: clamp(1.75rem, 3vw, 2.5rem); }
.mt-5 { margin-top: clamp(2.5rem, 5vw, 4rem); }
.center { text-align: center; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.badge-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
}
.badge-line span { display: inline-flex; align-items: center; gap: 0.45rem; }
.badge-line span::before { content: "◆"; color: var(--lime); font-size: 0.6em; }

/* ---------- 24. Responsive ---------- */
@media (max-width: 1080px) {
  .hero__grid { grid-template-columns: minmax(0, 1fr); }
  .hero__media { grid-template-columns: 1.1fr 1fr; max-width: 620px; }
  .hero__media .tall { aspect-ratio: 4 / 4.2; }
  .hero__media .wide { aspect-ratio: 1 / 1; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats__item { padding: 1.15rem 0.35rem; }
  .services { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .quotes { grid-template-columns: 1fr; }
  .cta-band { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .people { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-grid { grid-template-columns: 1fr; }
  .sec-head { grid-template-columns: 1fr; }
  .sec-head__aside { justify-items: start; text-align: left; }
  .split { grid-template-columns: 1fr; }
  .offer { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav, .site-header__cta .btn { display: none; }
  .burger { display: block; }
  .site-header__cta { gap: 0; }
  .step { grid-template-columns: 48px minmax(0, 1fr); gap: 0.75rem 1rem; }
  .step p { grid-column: 2; }
  .step::before { padding-top: 0.2rem; }
  .work-grid { grid-template-columns: 1fr; }
  .case--wide { grid-column: span 1; }
  .case--wide .case__img { aspect-ratio: 4 / 3; }
  .values { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .timeline li { grid-template-columns: 68px minmax(0, 1fr); gap: 1rem; }
}

@media (max-width: 560px) {
  :root { --header-h: 66px; }
  .services { grid-template-columns: 1fr; }
  .service-card { min-height: 0; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats__item { padding-inline: 0; }
  .hero__media { grid-template-columns: 1fr 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .people { grid-template-columns: 1fr 1fr; }
  .btn { width: 100%; }
  .hero__actions .btn, .cta-band__actions .btn { width: 100%; }
  .cta-band__actions { align-items: stretch; }
  .case__go { width: 36px; height: 36px; }
  .drawer__foot .btn { width: auto; }
}

/* ---------- 25. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .hero__title .line > span { transform: none; }
}