/* =========================================================================
   Merrow Fen — Intellectual Property, Bengaluru
   Design language: "Patent Plate" — ink + steel-cyan, blueprint hairlines,
   monospaced reference marks, diagram-like layout.
   ========================================================================= */

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

* { margin: 0; }

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

body {
  min-height: 100vh;
  font-family: var(--ff-serif);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

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

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

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

/* ---- Tokens ------------------------------------------------------------ */
:root {
  --ff-serif: "Spectral", Georgia, "Times New Roman", serif;
  --ff-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Ink family (dark) */
  --ink: #0F1418;
  --ink-1: #12181D;
  --ink-2: #171F25;
  --ink-3: #1E272E;

  /* Paper family (light) */
  --paper: #F2F0EA;
  --paper-2: #ECE9E1;
  --surface: #FAF8F3;

  /* Steel-cyan */
  --steel: #6E93B2;
  --steel-deep: #35678B;   /* readable on paper */
  --steel-ink: #2C5877;
  --steel-bright: #9DBEDA; /* readable on ink */
  --steel-glow: rgba(110, 147, 178, 0.5);

  /* Text */
  --text: #141A1F;
  --muted: #566169;
  --text-on-ink: #E9EEF2;
  --muted-on-ink: #9BAAB4;

  /* Hairlines */
  --line: rgba(15, 20, 24, 0.14);
  --line-2: rgba(15, 20, 24, 0.28);
  --line-ink: rgba(110, 147, 178, 0.26);
  --line-ink-2: rgba(110, 147, 178, 0.42);

  --shadow-plate: 0 1px 0 rgba(15,20,24,0.04), 0 24px 48px -28px rgba(15,20,24,0.30);

  --wrap: 1200px;
  --gap: clamp(1.25rem, 4vw, 2.5rem);
  --pad-x: clamp(1.15rem, 5vw, 2.5rem);
  --sec-y: clamp(4rem, 9vw, 7.5rem);
  --radius: 3px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---- Type scale -------------------------------------------------------- */
h1, h2, h3, h4 { font-weight: 500; line-height: 1.08; letter-spacing: -0.015em; }

.display {
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 500;
}

.h2 { font-size: clamp(1.9rem, 4.2vw, 3rem); letter-spacing: -0.022em; }
.h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); letter-spacing: -0.015em; }

.lede {
  font-size: clamp(1.08rem, 1.7vw, 1.32rem);
  line-height: 1.55;
  color: var(--muted);
  font-weight: 400;
}

/* Monospaced "reference mark" — the signature technical label */
.mark {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--steel-deep);
}

.mark--ink { color: var(--steel-bright); }

.mono { font-family: var(--ff-mono); }

/* ---- Layout ------------------------------------------------------------ */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section { padding-block: var(--sec-y); }

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3.5rem;
  z-index: 200;
  background: var(--ink);
  color: var(--text-on-ink);
  padding: 0.6rem 1rem;
  font-family: var(--ff-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 0.75rem; }

/* Blueprint grid — the recurring backdrop */
.blueprint {
  background-image:
    linear-gradient(var(--line-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-ink) 1px, transparent 1px);
  background-size: 34px 34px;
  background-position: center;
}

/* Section eyebrow with an index number and rule */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.6rem;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.eyebrow--ink::after { background: var(--line-ink); }
.eyebrow .idx {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--steel-deep);
  text-transform: uppercase;
}
.eyebrow--ink .idx { color: var(--steel-bright); }

/* ---- Buttons ----------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--ff-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.35s var(--ease), background 0.25s var(--ease),
              color 0.25s var(--ease), border-color 0.25s var(--ease),
              box-shadow 0.35s var(--ease);
  will-change: transform;
}
.btn .arw { transition: transform 0.35s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

.btn--primary {
  background: var(--steel-deep);
  color: #fff;
  box-shadow: 0 10px 24px -12px rgba(53,103,139,0.7);
}
.btn--primary:hover { background: var(--steel-ink); transform: translateY(-2px); }

.btn--ink {
  background: var(--ink);
  color: var(--text-on-ink);
}
.btn--ink:hover { background: var(--ink-3); transform: translateY(-2px); }

.btn--ghost {
  border-color: var(--line-2);
  color: var(--text);
  background: transparent;
}
.btn--ghost:hover { border-color: var(--steel-deep); color: var(--steel-deep); transform: translateY(-2px); }

.btn--ghost-ink {
  border-color: var(--line-ink-2);
  color: var(--text-on-ink);
  background: transparent;
}
.btn--ghost-ink:hover { border-color: var(--steel-bright); color: var(--steel-bright); transform: translateY(-2px); }

.btn--lg { padding: 1rem 1.7rem; font-size: 0.88rem; }
.btn--wide { width: 100%; justify-content: center; }

/* ---- Header / Nav ------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(242, 240, 234, 0.82);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 12px 30px -24px rgba(15,20,24,0.5); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1rem;
}

.brand { display: flex; align-items: center; gap: 0.65rem; }
.brand__mark { width: 30px; height: 30px; flex: none; }
.brand__name {
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  font-weight: 500;
  line-height: 1;
}
.brand__name b { font-weight: 600; }
.brand__tag {
  display: block;
  font-family: var(--ff-mono);
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  color: var(--steel-deep);
  text-transform: uppercase;
  margin-top: 3px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.9rem;
}
.nav__links a {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  position: relative;
  padding: 0.25rem 0;
  transition: color 0.2s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1.5px;
  background: var(--steel-deep);
  transition: width 0.3s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { width: 100%; }

.nav__cta { display: flex; align-items: center; gap: 0.8rem; }

.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line-2);
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav__toggle span {
  position: relative;
  width: 18px; height: 1.5px;
  background: var(--text);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  position: absolute; left: 0;
  width: 18px; height: 1.5px;
  background: var(--text);
  transition: transform 0.3s var(--ease);
}
.nav__toggle span::before { top: -6px; }
.nav__toggle span::after { top: 6px; }
.nav__toggle[aria-expanded="true"] span { background: transparent; }
.nav__toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---- Hero -------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--text-on-ink);
  overflow: hidden;
  isolation: isolate;
}
.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-ink) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(120% 100% at 70% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 100% at 70% 0%, #000 20%, transparent 78%);
  opacity: 0.6;
  z-index: -2;
}
.hero__glow {
  position: absolute;
  top: -25%; right: -10%;
  width: 60vw; height: 60vw;
  max-width: 760px; max-height: 760px;
  background: radial-gradient(circle, var(--steel-glow) 0%, transparent 62%);
  filter: blur(30px);
  opacity: 0.45;
  z-index: -1;
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--steel-bright);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero__eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--steel-bright);
  box-shadow: 0 0 0 4px rgba(157,190,218,0.16);
}

.hero h1 { margin-bottom: 1.5rem; }
.hero h1 .em { color: var(--steel-bright); font-style: italic; }

.hero__sub {
  font-size: clamp(1.05rem, 1.6vw, 1.24rem);
  color: var(--muted-on-ink);
  max-width: 34ch;
  margin-bottom: 2rem;
  font-weight: 400;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-bottom: 2.6rem; }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: clamp(1.4rem, 4vw, 2.8rem);
  padding-top: 1.8rem;
  border-top: 1px solid var(--line-ink);
  width: fit-content;
}
.stat__num {
  font-size: 1.85rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
  color: #fff;
}
.stat__num sup { font-size: 0.85rem; color: var(--steel-bright); }
.stat__label {
  display: block;
  margin-top: 0.4rem;
  font-family: var(--ff-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-on-ink);
}

/* FIG plate — framed image, patent-drawing caption */
.plate {
  position: relative;
  border: 1px solid var(--line-ink-2);
  padding: 12px;
  background:
    linear-gradient(var(--ink-1), var(--ink-1)) padding-box;
}
.plate__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-ink);
}
.plate__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.92) contrast(1.02);
}
.plate__cap {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-top: 10px;
  font-family: var(--ff-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-on-ink);
}
.plate__cap b { color: var(--steel-bright); font-weight: 500; }

/* corner ticks */
.plate::before, .plate::after,
.plate .tick-b::before, .plate .tick-b::after {
  content: "";
  position: absolute;
  width: 11px; height: 11px;
  border-color: var(--steel-bright);
  border-style: solid;
  border-width: 0;
  opacity: 0.85;
}
.plate::before { top: -1px; left: -1px; border-top-width: 1.5px; border-left-width: 1.5px; }
.plate::after  { top: -1px; right: -1px; border-top-width: 1.5px; border-right-width: 1.5px; }
.plate .tick-b { position: absolute; inset: 0; pointer-events: none; }
.plate .tick-b::before { bottom: -1px; left: -1px; border-bottom-width: 1.5px; border-left-width: 1.5px; }
.plate .tick-b::after  { bottom: -1px; right: -1px; border-bottom-width: 1.5px; border-right-width: 1.5px; }

/* annotation reference numerals over hero plate */
.annot {
  position: absolute;
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  color: var(--ink);
  background: var(--steel-bright);
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 600;
  box-shadow: 0 0 0 5px rgba(157,190,218,0.18);
  z-index: 3;
}
.annot--1 { top: 16%; left: -11px; }
.annot--2 { top: 54%; right: -11px; }
.annot--3 { bottom: 12%; left: 22%; }

/* ---- Section header block --------------------------------------------- */
.sec-head { max-width: 62ch; margin-bottom: clamp(2.2rem, 5vw, 3.4rem); }
.sec-head .h2 { margin-bottom: 1rem; }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head.center .eyebrow { justify-content: center; }
.sec-head.center .eyebrow::after { display: none; }

/* ---- Practice cards ---------------------------------------------------- */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.pcard {
  background: var(--surface);
  padding: clamp(1.5rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 320px;
  position: relative;
  transition: background 0.3s var(--ease);
}
.pcard:hover { background: #fff; }
.pcard__idx {
  font-family: var(--ff-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--steel-deep);
}
.pcard__icon {
  width: 46px; height: 46px;
  color: var(--steel-deep);
  margin-bottom: 0.2rem;
}
.pcard__icon svg { width: 100%; height: 100%; }
.pcard h3 { font-size: 1.28rem; }
.pcard p { color: var(--muted); font-size: 0.98rem; line-height: 1.55; }
.pcard__list {
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--line-2);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
}
.pcard__list li {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  color: var(--muted);
}
.pcard__list li::before { content: "· "; color: var(--steel-deep); }

/* ---- City band (full-bleed image strip) -------------------------------- */
.city-band { position: relative; background: var(--ink); }
.city-band__fig { position: relative; margin: 0; }
.city-band__fig img {
  width: 100%;
  height: clamp(220px, 32vw, 380px);
  object-fit: cover;
  filter: saturate(0.9) brightness(0.72) contrast(1.05);
  display: block;
}
.city-band__fig::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(15,20,24,0.75), rgba(15,20,24,0.25) 45%, rgba(15,20,24,0.6)),
    linear-gradient(var(--line-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-ink) 1px, transparent 1px);
  background-size: cover, 40px 40px, 40px 40px;
  pointer-events: none;
}
.city-band__cap {
  position: absolute;
  inset: auto var(--pad-x) 1.4rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  max-width: var(--wrap);
  margin-inline: auto;
  left: 50%;
  transform: translateX(-50%);
  width: min(100%, var(--wrap));
  padding-inline: var(--pad-x);
}
.city-band__cap .mono {
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-bright);
}

/* ---- Process timeline (band on ink) ------------------------------------ */
.band--ink {
  background: var(--ink);
  color: var(--text-on-ink);
  position: relative;
  overflow: hidden;
}
.band--ink .h2 { color: #fff; }
.band--ink .lede { color: var(--muted-on-ink); }

.process {
  position: relative;
  margin-top: clamp(2rem, 4vw, 3rem);
}
.process__rail {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}
.process__rail::before {
  content: "";
  position: absolute;
  top: 15px; left: 0; right: 0;
  height: 1px;
  background-image: linear-gradient(90deg, var(--line-ink-2) 55%, transparent 55%);
  background-size: 10px 1px;
}
.step { position: relative; padding-top: 42px; }
.step__node {
  position: absolute;
  top: 5px; left: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1.5px solid var(--steel-bright);
  background: var(--ink);
  display: grid;
  place-items: center;
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  color: var(--steel-bright);
  z-index: 2;
}
.step__phase {
  font-family: var(--ff-mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-bright);
  margin-bottom: 0.5rem;
}
.step h3 { font-size: 1.12rem; margin-bottom: 0.5rem; color: #fff; }
.step p { color: var(--muted-on-ink); font-size: 0.9rem; line-height: 1.5; }

/* ---- Technologies ------------------------------------------------------ */
.tech {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.tech__matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.tcell {
  background: var(--surface);
  padding: 1.3rem 1.4rem;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.tcell:hover { background: #fff; }
.tcell__code {
  font-family: var(--ff-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  color: var(--steel-deep);
  display: block;
  margin-bottom: 0.5rem;
}
.tcell h4 { font-size: 1.05rem; font-weight: 500; margin-bottom: 0.3rem; }
.tcell p { font-size: 0.85rem; color: var(--muted); line-height: 1.45; }

.tech__plate { position: relative; }
.tech__plate .plate {
  background: var(--paper-2);
  border-color: var(--line-2);
}
.tech__plate .plate__frame { border-color: var(--line); }
.tech__plate .plate__frame img { filter: saturate(0.95); }
.tech__plate .plate__cap { color: var(--muted); }
.tech__plate .plate__cap b { color: var(--steel-deep); }
.tech__plate .plate::before,
.tech__plate .plate::after,
.tech__plate .plate .tick-b::before,
.tech__plate .plate .tick-b::after { border-color: var(--steel-deep); }

/* ---- About / firm ------------------------------------------------------ */
.about {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.about__body p + p { margin-top: 1.1rem; }
.about__body p { color: var(--muted); }
.about__creds {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 2rem;
}
.cred { background: var(--surface); padding: 1.1rem 1.2rem; }
.cred b { display: block; font-size: 1.55rem; font-weight: 500; letter-spacing: -0.02em; }
.cred span {
  font-family: var(--ff-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.about__media .plate { background: var(--paper-2); border-color: var(--line-2); }
.about__media .plate__frame { border-color: var(--line); }
.about__media .plate__cap { color: var(--muted); }
.about__media .plate__cap b { color: var(--steel-deep); }
.about__media .plate::before,
.about__media .plate::after,
.about__media .plate .tick-b::before,
.about__media .plate .tick-b::after { border-color: var(--steel-deep); }

/* ---- People ------------------------------------------------------------ */
.people {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(2rem, 4vw, 3rem);
}
.person { background: var(--surface); padding: clamp(1.5rem, 2.5vw, 2rem); }
.person__mono {
  width: 44px; height: 44px;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--ff-mono);
  font-size: 0.85rem;
  color: var(--steel-deep);
  margin-bottom: 1.1rem;
}
.person h3 { font-size: 1.2rem; }
.person__role {
  font-family: var(--ff-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel-deep);
  margin: 0.35rem 0 0.9rem;
}
.person p { font-size: 0.92rem; color: var(--muted); line-height: 1.5; }

/* ---- Quote ------------------------------------------------------------- */
.quote-band { position: relative; overflow: hidden; }
.quote {
  max-width: 46ch;
  margin-inline: auto;
  text-align: center;
}
.quote blockquote {
  font-size: clamp(1.4rem, 3vw, 2.15rem);
  line-height: 1.32;
  letter-spacing: -0.02em;
  font-weight: 400;
}
.quote blockquote .em { color: var(--steel-bright); font-style: italic; }
.quote figcaption {
  margin-top: 1.6rem;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-on-ink);
}
.quote figcaption b { color: var(--text-on-ink); font-weight: 500; }

/* ---- CTA band ---------------------------------------------------------- */
.cta {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(2rem, 5vw, 3.6rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(80% 120% at 100% 0%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(80% 120% at 100% 0%, #000, transparent 70%);
  opacity: 0.6;
  pointer-events: none;
}
.cta > * { position: relative; z-index: 1; }
.cta .h2 { margin-bottom: 0.7rem; }
.cta p { color: var(--muted); }
.cta__actions { display: flex; flex-direction: column; gap: 0.7rem; }

/* ---- Footer ------------------------------------------------------------ */
.site-footer {
  background: var(--ink);
  color: var(--muted-on-ink);
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}
.footer__grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-ink) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.28;
  mask-image: linear-gradient(180deg, #000, transparent 60%);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 60%);
}
.footer__top {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: 2rem;
  padding-bottom: 2.6rem;
  border-bottom: 1px solid var(--line-ink);
}
.footer__brand .brand__name { color: #fff; }
.footer__brand p { margin-top: 1rem; max-width: 30ch; font-size: 0.95rem; }
.footer__col h4 {
  font-family: var(--ff-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-bright);
  margin-bottom: 1.1rem;
  font-weight: 500;
}
.footer__col ul { display: grid; gap: 0.6rem; }
.footer__col a, .footer__col address {
  font-size: 0.93rem;
  font-style: normal;
  color: var(--muted-on-ink);
  transition: color 0.2s var(--ease);
  line-height: 1.5;
}
.footer__col a:hover { color: var(--steel-bright); }
.footer__bottom {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.8rem;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}
.footer__bottom a { color: var(--steel-bright); }
.footer__bottom a:hover { text-decoration: underline; }
.footer__credit { color: var(--muted-on-ink); }

/* ---- Reveal animation -------------------------------------------------- */
.reveal { transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.js .reveal { opacity: 0; transform: translateY(22px); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

/* =========================================================================
   Contact page
   ========================================================================= */
.page-hero {
  background: var(--ink);
  color: var(--text-on-ink);
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 7vw, 5rem);
}
.page-hero__inner { position: relative; max-width: 60ch; }
.page-hero h1 { margin-bottom: 1.2rem; font-size: clamp(2.2rem, 5vw, 3.6rem); }
.page-hero p { color: var(--muted-on-ink); font-size: clamp(1.05rem, 1.6vw, 1.2rem); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.form-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.6rem);
}
.field { margin-bottom: 1.3rem; }
.field label {
  display: block;
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.field label .req { color: var(--steel-deep); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.3rem; }

.input, .select, .textarea {
  width: 100%;
  background: #fff;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 0.8rem 0.9rem;
  font-family: var(--ff-serif);
  font-size: 1rem;
  color: var(--text);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.input::placeholder, .textarea::placeholder { color: #97a1a8; }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--steel-deep);
  box-shadow: 0 0 0 3px rgba(53,103,139,0.14);
}
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2335678B' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.4rem;
  cursor: pointer;
}
.textarea { min-height: 140px; resize: vertical; line-height: 1.55; }

.form-note {
  margin-top: 0.4rem;
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.field-error {
  display: none;
  margin-top: 0.4rem;
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  color: #a8452f;
  letter-spacing: 0.02em;
}
.field.has-error .input,
.field.has-error .select,
.field.has-error .textarea { border-color: #a8452f; }
.field.has-error .field-error { display: block; }

/* Contact aside */
.contact-aside { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.aside-cell { background: var(--surface); padding: 1.4rem 1.5rem; }
.aside-cell h3 {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel-deep);
  font-weight: 500;
  margin-bottom: 0.7rem;
}
.aside-cell address, .aside-cell p { font-style: normal; color: var(--text); line-height: 1.55; }
.aside-cell a { color: var(--text); border-bottom: 1px solid var(--line-2); transition: color 0.2s, border-color 0.2s; }
.aside-cell a:hover { color: var(--steel-deep); border-color: var(--steel-deep); }
.aside-actions { display: grid; gap: 0.6rem; margin-top: 0.4rem; }
.wa-btn {
  display: flex; align-items: center; gap: 0.6rem;
  font-family: var(--ff-mono); font-size: 0.8rem; letter-spacing: 0.04em;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  border-bottom: 1px solid var(--line-2);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color .2s;
}
.wa-btn svg { width: 18px; height: 18px; flex: none; }
.wa-btn:hover { border-color: var(--steel-deep); color: var(--steel-deep); background: #fff; }

.hours-list { display: grid; gap: 0.35rem; }
.hours-list li {
  display: flex; justify-content: space-between; gap: 1rem;
  font-family: var(--ff-mono); font-size: 0.78rem; color: var(--text);
}
.hours-list li span:last-child { color: var(--muted); }

/* =========================================================================
   Thank-you page
   ========================================================================= */
.thanks {
  min-height: 78vh;
  display: grid;
  place-items: center;
  text-align: center;
  background: var(--ink);
  color: var(--text-on-ink);
  position: relative;
  overflow: hidden;
  padding: 4rem 1.25rem;
}
.thanks__inner { position: relative; max-width: 44ch; }
.thanks__badge {
  width: 84px; height: 84px;
  margin: 0 auto 2rem;
  border: 1px solid var(--line-ink-2);
  border-radius: 50%;
  display: grid; place-items: center;
  position: relative;
}
.thanks__badge svg { width: 40px; height: 40px; color: var(--steel-bright); }
.thanks__badge::after {
  content: "";
  position: absolute; inset: -8px;
  border: 1px dashed var(--line-ink);
  border-radius: 50%;
  animation: spin 26s linear infinite;
}
.thanks h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 1rem; }
.thanks h1 .em { color: var(--steel-bright); font-style: italic; }
.thanks p { color: var(--muted-on-ink); margin-bottom: 2rem; font-size: 1.08rem; }
.thanks__ref {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel-bright);
  margin-bottom: 2.2rem;
}
.thanks__actions { display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: center; }

@keyframes spin { to { transform: rotate(360deg); } }

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 1000px) {
  .grid-cards { grid-template-columns: repeat(2, 1fr); }
  .people { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 2rem 1.5rem; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__media { order: -1; max-width: 460px; }
  .tech { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; }
  .about__media { max-width: 480px; }
  .cta { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .process__rail { grid-template-columns: 1fr; gap: 0; }
  .process__rail::before { display: none; }
  .step {
    padding: 1.2rem 0 1.2rem 3rem;
    border-left: 1px dashed var(--line-ink-2);
    margin-left: 10px;
  }
  .step:last-child { border-left-color: transparent; }
  .step__node { top: 1.3rem; left: -11px; }

  .nav__links, .nav__cta .btn--ghost { display: none; }
  .nav__toggle { display: inline-flex; }

  /* mobile menu panel */
  .nav__links.is-open {
    display: flex;
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--ink);
    padding: 0.5rem var(--pad-x) 1.5rem;
    border-bottom: 1px solid var(--line-ink);
    box-shadow: 0 24px 40px -20px rgba(0,0,0,0.6);
  }
  .nav__links.is-open a {
    color: var(--text-on-ink);
    font-size: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--line-ink);
    letter-spacing: 0.02em;
  }
  .nav__links.is-open a::after { display: none; }
}

@media (max-width: 560px) {
  .grid-cards { grid-template-columns: 1fr; }
  .tech__matrix { grid-template-columns: 1fr; }
  .about__creds { grid-template-columns: 1fr 1fr; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .hero__stats { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .stat__num { font-size: 1.5rem; }
  .footer__top { grid-template-columns: 1fr; }
}

@media (max-width: 380px) {
  .hero__stats { grid-template-columns: 1fr; }
}

/* ---- Reduced motion ---------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal, .js .reveal { opacity: 1 !important; transform: none !important; }
  .thanks__badge::after { animation: none; }
}