/* =====================================================================
   Trushil Lad — Portfolio
   main.css — design tokens, layout, components (no animation rules here)
   Animation rules live in animations.css, breakpoints in responsive.css
   ===================================================================== */

:root {
  /* Colour system */
  --ink: #0b0b0c;
  --ink-2: #121214;
  --ink-3: #17171a;
  --ivory: #f2efe6;
  --ivory-dim: #b8b4a9;
  --grey: #7d7a73;
  --line: rgba(242, 239, 230, 0.14);
  --line-strong: rgba(242, 239, 230, 0.32);
  --accent: #e5ff3d;
  --accent-ink: #0b0b0c;
  --blue: #7fa6d8;

  /* Type */
  --font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-ui: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;

  --step-hero: clamp(2.75rem, 9vw, 8.5rem);
  --step-xl: clamp(2.25rem, 6.2vw, 5.5rem);
  --step-lg: clamp(1.75rem, 4vw, 3.25rem);
  --step-md: clamp(1.25rem, 2.2vw, 1.75rem);
  --step-body: clamp(1rem, 1.05vw, 1.125rem);
  --step-meta: 0.72rem;

  /* Space */
  --gutter: clamp(1.25rem, 4vw, 5rem);
  --section-y: clamp(4.5rem, 11vh, 9.5rem);
  --radius: 2px;
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--font-ui);
  font-size: var(--step-body);
  line-height: 1.6;
  font-weight: 300;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 0;
}

p { margin: 0 0 1rem; color: var(--ivory-dim); }

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

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 2000;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.75rem 1.25rem;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.skip-link:focus { left: 0; }

/* ---------- Utility type ---------- */
.meta {
  font-size: var(--step-meta);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--grey);
  font-weight: 500;
}
.meta-accent { color: var(--accent); }
.serif { font-family: var(--font-display); }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.35rem); color: var(--ivory-dim); max-width: 62ch; }
.accent { color: var(--accent); }
.blue { color: var(--blue); }

.shell { padding-inline: var(--gutter); max-width: 1680px; margin-inline: auto; width: 100%; }
.section { padding-block: var(--section-y); position: relative; }
.rule { height: 1px; background: var(--line); border: 0; margin: 0; opacity: 1; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
  flex-wrap: wrap;
}
.section-index {
  font-family: var(--font-ui);
  font-size: var(--step-meta);
  letter-spacing: 0.2em;
  color: var(--accent);
}
.section-title { font-size: var(--step-xl); flex: 1 1 20ch; }

/* ---------- Buttons ---------- */
.btn-x {
  --btn-bg: transparent;
  --btn-fg: var(--ivory);
  --btn-bd: var(--line-strong);
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.9rem 1.6rem;
  border: 1px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
  border-radius: 100px;
  cursor: pointer;
  transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease;
}
.btn-x:hover, .btn-x:focus-visible { background: var(--ivory); color: var(--ink); border-color: var(--ivory); }
.btn-x--accent { --btn-bg: var(--accent); --btn-fg: var(--accent-ink); --btn-bd: var(--accent); }
.btn-x--accent:hover, .btn-x--accent:focus-visible { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-x--neon-hover:hover, .btn-x--neon-hover:focus-visible { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-x--ghost { --btn-bd: var(--line); }
.btn-x .bi { font-size: 0.95rem; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem var(--gutter);
  border-bottom: 1px solid transparent;
  transition: padding 0.35s ease, background-color 0.35s ease, border-color 0.35s ease;
}
.nav.is-scrolled {
  padding-block: 0.7rem;
  background: rgba(11, 11, 12, 0.86);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav-brand {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  font-weight: 600;
}
.nav-brand span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.2rem); }
.nav-link {
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ivory-dim);
  position: relative;
  padding-block: 0.25rem;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s ease;
}
.nav-link:hover::after, .nav-link:focus-visible::after, .nav-link[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.nav-link[aria-current="page"] { color: var(--ivory); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.6rem;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  color: var(--ivory);
  padding: 0.55rem 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 950;
  background: var(--ink-2);
  display: flex;
  flex-direction: column;
  padding: 1.25rem var(--gutter) 2rem;
  overflow-y: auto;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}
.mobile-menu__close {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.55rem 0;
  border: 0;
  background: transparent;
  color: var(--ivory);
  font: inherit;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.mobile-menu nav { margin: auto 0; }
.mobile-menu a.m-link {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 8vw, 2.45rem);
  border-bottom: 1px solid var(--line);
  padding-block: 0.6rem;
  display: block;
}
.mobile-menu .m-meta { margin-top: auto; padding-top: 1.25rem; border-top: 1px solid var(--line); }

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--accent);
  z-index: 1000;
}

/* ---------- Preloader ---------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: var(--ink);
  display: grid;
  place-items: center;
  text-align: center;
}
.preloader__name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 5rem);
}
.preloader__word {
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 1rem;
  min-height: 1.4em;
}

/* ---------- Custom cursor ---------- */
.cursor-dot {
  position: fixed;
  top: 0; left: 0;
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  background: rgba(229, 255, 61, 0.14);
  pointer-events: none;
  z-index: 1100;
  display: grid;
  place-items: center;
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  color: var(--accent-ink);
  will-change: transform;
  contain: layout paint style;
  transition: width 0.22s cubic-bezier(0.22, 1, 0.36, 1), height 0.22s cubic-bezier(0.22, 1, 0.36, 1), background-color 0.18s ease, border-color 0.18s ease;
}
.cursor-dot.is-active {
  width: 74px; height: 74px;
  background: var(--accent);
  border-color: var(--accent);
}
.cursor-dot span { opacity: 0; font-weight: 600; }
.cursor-dot.is-active span { opacity: 1; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-block: 8rem 3rem;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero__grid {
  position: absolute;
  inset: -10%;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: clamp(60px, 8vw, 120px) clamp(60px, 8vw, 120px);
  opacity: 0.5;
  pointer-events: none;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero__inner { position: relative; z-index: 2; width: 100%; }
.hero__eyebrow { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; margin-bottom: clamp(1.5rem, 4vw, 3rem); }
.hero__title { font-size: var(--step-hero); max-width: 16ch; }
.hero__title em { font-style: italic; color: var(--accent); }
.hero__facts { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.hero__facts li { display: flex; gap: 0.65rem; align-items: baseline; font-size: 0.82rem; color: var(--ivory-dim); }
.hero__facts li::before { content: ""; width: 6px; height: 6px; background: var(--accent); flex: none; }
.hero__scroll { display: inline-flex; align-items: center; gap: 0.6rem; margin-top: 2.5rem; }
.hero__vertical {
  position: absolute;
  right: calc(var(--gutter) * 0.35);
  top: 50%;
  transform: translateY(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  font-size: var(--step-meta);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--grey);
  z-index: 2;
}
.float-tag {
  position: absolute;
  border: 1px solid var(--line);
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ivory-dim);
  background: rgba(11, 11, 12, 0.6);
  z-index: 2;
}

/* ---------- Marquee ---------- */
.marquee {
  border-block: 1px solid var(--line);
  overflow: hidden;
  padding-block: 1.15rem;
  background: var(--ink-2);
}
.marquee__track {
  display: flex;
  flex-flow: row nowrap;
  align-items: center;
  width: max-content;
  min-width: max-content;
}
.marquee__group {
  display: flex;
  flex: 0 0 auto;
  flex-flow: row nowrap;
  align-items: center;
  gap: 3rem;
  width: max-content;
  padding-right: 3rem;
}
.marquee__item {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.6vw, 2.1rem);
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 3rem;
  white-space: nowrap;
  color: var(--ivory);
}
.marquee__item i { color: var(--accent); font-size: 0.7em; font-style: normal; }

/* ---------- Stats ---------- */
.stat {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
  height: 100%;
}
.stat__num { font-family: var(--font-display); font-size: clamp(2.6rem, 5vw, 4.4rem); line-height: 1; }
.stat__label { font-size: 0.82rem; color: var(--ivory-dim); margin-top: 0.6rem; }

/* ---------- Work / projects ---------- */
.work-track { display: flex; }
.work-section {
  isolation: isolate;
  overflow: hidden;
}
.work-section > .shell { position: relative; z-index: 1; }
.work-bg {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  user-select: none;
}
.work-bg svg {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
}
.work-bg__back {
  fill: none;
  stroke: var(--ivory);
  stroke-width: 1;
  opacity: 0.05;
}
.work-bg__routes {
  fill: none;
  stroke: var(--ivory);
  stroke-width: 1.25;
  opacity: 0.085;
}
.work-bg__systems {
  fill: rgba(18, 18, 20, 0.26);
  stroke: var(--ivory);
  stroke-width: 1.25;
  opacity: 0.13;
}
.work-bg__systems .work-bg__status {
  fill: var(--accent);
  stroke: none;
  opacity: 0.72;
}
.work-bg__streams {
  fill: var(--blue);
  stroke: var(--blue);
  stroke-width: 1.2;
  opacity: 0.13;
}
.work-bg__active { fill: none; }
.work-bg__packet { fill: var(--accent); opacity: 0.38; }
.work-bg__trace {
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.2;
  stroke-dasharray: 3 22;
  opacity: 0.12;
}
.work-bg__mobile-route { display: none; }
.work-card {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid transparent;
  padding-block: clamp(1.75rem, 3vw, 2.75rem);
  display: block;
  position: relative;
  transition: background-color 0.4s ease, padding-inline 0.4s ease;
}
.work-card:hover, .work-card:focus-visible { background: var(--ink-2); padding-inline: 1.25rem; }
.work-card__num { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3.4rem); color: var(--grey); line-height: 1; }
.work-card:hover .work-card__num { color: var(--accent); }
.work-card__title { font-size: var(--step-lg); }
.work-card__sub { color: var(--ivory-dim); font-size: 0.92rem; }
.work-card__desc { font-size: 0.92rem; max-width: 46ch; }
.chip {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 0.28rem 0.7rem;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ivory-dim);
  margin: 0 0.35rem 0.35rem 0;
}
.chip--accent { border-color: var(--accent); color: var(--accent); }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); display: inline-block; margin-right: 0.5rem; }

.proj-visual {
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 120% at 80% 0%, rgba(127, 166, 216, 0.16), transparent 55%),
    linear-gradient(180deg, var(--ink-3), var(--ink));
  position: relative;
  overflow: hidden;
}
.proj-visual::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.6;
}
.proj-visual__label {
  position: absolute;
  z-index: 2;
  left: 1.25rem; bottom: 1.1rem;
  font-size: var(--step-meta);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grey);
}
.proj-flow {
  position: absolute;
  z-index: 1;
  inset: 1.5rem 1.5rem 3.8rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: center;
  gap: 0.7rem;
}
.proj-flow__node {
  position: relative;
  min-height: 5.8rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.8rem;
  border: 1px solid var(--line-strong);
  background: rgba(11, 11, 12, 0.78);
}
.proj-flow__node:first-child { border-color: var(--accent); }
.proj-flow__node span { color: var(--accent); font-size: 0.62rem; letter-spacing: 0.15em; }
.proj-flow__node strong { color: var(--ivory); font-family: var(--font-ui); font-size: clamp(0.62rem, 1.15vw, 0.82rem); font-weight: 500; line-height: 1.2; }
.proj-flow__arrow { position: absolute; z-index: 2; right: -0.58rem; top: 50%; transform: translateY(-50%); color: var(--accent); font-style: normal; font-size: 1.1rem; }

/* ---------- Expertise panels ---------- */
.panel {
  border-top: 1px solid var(--line);
  padding: clamp(1.5rem, 3vw, 2.5rem) 0;
  height: 100%;
  transition: background-color 0.4s ease, padding-inline 0.4s ease;
}
.panel:hover, .panel:focus-within { background: var(--ink-2); padding-inline: 1.25rem; }
.panel__num { font-size: var(--step-meta); letter-spacing: 0.2em; color: var(--accent); }
.panel__title { font-size: var(--step-lg); margin: 0.75rem 0 1rem; }
.panel__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem 0.5rem; }
.panel__list li { font-size: 0.78rem; color: var(--ivory-dim); border: 1px solid var(--line); border-radius: 100px; padding: 0.22rem 0.65rem; }

/* ---------- Tech ecosystem ---------- */
.tech-group { border-top: 1px solid var(--line); padding-top: 1.1rem; margin-bottom: 2.2rem; }
.tech-group h3 { font-family: var(--font-ui); font-size: var(--step-meta); letter-spacing: 0.2em; text-transform: uppercase; color: var(--grey); font-weight: 500; }
.tech-list { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; margin-top: 0.85rem; }
.tech-list span { font-family: var(--font-display); font-size: clamp(1.1rem, 2vw, 1.75rem); }
.tech-list span:hover { color: var(--accent); }

/* ---------- Homepage about: pixel workstation backdrop ---------- */
.about-section {
  isolation: isolate;
  overflow: clip;
  background:
    radial-gradient(ellipse 48% 62% at 86% 66%, rgba(127, 166, 216, 0.045), transparent 72%),
    linear-gradient(180deg, transparent, rgba(23, 23, 26, 0.18) 52%, transparent);
}
.about-section::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, var(--ink) 0%, rgba(11, 11, 12, 0.96) 30%, rgba(11, 11, 12, 0.38) 67%, transparent 100%);
}
.about-section > .shell { position: relative; z-index: 2; }
.about-visual {
  position: absolute;
  z-index: 0;
  right: clamp(-7rem, -5vw, -2rem);
  bottom: clamp(-4.5rem, -4vw, -2rem);
  width: clamp(44rem, 57vw, 60rem);
  height: auto;
  max-width: none;
  opacity: 0.72;
  pointer-events: none;
  user-select: none;
}
.about-visual__data {
  fill: none;
  stroke: var(--blue);
  stroke-width: 1;
  opacity: 0.18;
}
.about-visual__fragments { opacity: 0.72; }
.about-visual__midground {
  fill: none;
  stroke: var(--ivory);
  stroke-width: 1.35;
  opacity: 0.22;
}
.about-visual__screen-code {
  fill: none;
  stroke: var(--ivory);
  stroke-width: 2;
  opacity: 0.28;
}
.about-visual__desk-details {
  fill: none;
  stroke: var(--ivory);
  stroke-width: 1.4;
  opacity: 0.19;
}
.about-visual__foreground {
  stroke: var(--ivory);
  stroke-width: 2;
  stroke-linecap: square;
  stroke-linejoin: bevel;
  opacity: 0.27;
}
.about-visual__pixels { opacity: 0.06; }
.about-visual__hand,
.about-visual__cursor,
.about-visual__status,
.about-visual__cable-pulse,
.about-visual__pixel,
.about-visual__code-lines { transform-box: fill-box; }

/* ---------- Standalone About page: workstation continuity ---------- */
.about-page {
  position: relative;
  isolation: isolate;
  overflow: clip;
}
.about-page > .case-section { position: relative; z-index: 1; }
.about-page-hero {
  position: relative;
  z-index: 1;
  isolation: isolate;
  overflow: hidden;
}
.about-page-hero::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, var(--ink) 0%, rgba(11, 11, 12, 0.95) 35%, rgba(11, 11, 12, 0.48) 66%, transparent 100%);
}
.about-page-hero > .shell { position: relative; z-index: 2; }
.about-hero-art {
  position: absolute;
  z-index: 0;
  right: clamp(-6.5rem, -4vw, -2rem);
  bottom: clamp(-4.5rem, -3vw, -1.5rem);
  width: clamp(32.5rem, 43vw, 53rem);
  aspect-ratio: 700 / 487;
  pointer-events: none;
  user-select: none;
  mask-image:
    linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.42) 16%, #000 37%, #000 100%),
    linear-gradient(180deg, transparent 0%, #000 12%, #000 88%, transparent 100%);
  mask-composite: intersect;
}
.about-hero-art img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: invert(1) grayscale(1) contrast(0.88);
  mix-blend-mode: screen;
  pointer-events: none;
  user-select: none;
}
.about-hero-art__base { opacity: 0.29; }
.about-hero-art__layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.about-hero-art__layer img { opacity: 0.18; }
.about-hero-art__monitor {
  clip-path: polygon(24% 3%, 40% 3%, 40% 39%, 24% 39%);
}
.about-hero-art__hands {
  clip-path: polygon(43% 26%, 78% 26%, 78% 63%, 43% 63%);
}
.about-hero-art__person {
  clip-path: polygon(66% 25%, 91% 25%, 91% 87%, 66% 87%);
}
.about-hero-art__scan {
  position: absolute;
  left: 27.2%;
  top: 10%;
  width: 6.6%;
  height: 1px;
  background: var(--accent);
  opacity: 0;
}
.about-hero-art__signals {
  position: absolute;
  inset: 0;
}
.about-hero-art__signals i {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--ivory-dim);
  opacity: 0.14;
}
.about-hero-art__signals i:nth-child(1) { left: 23%; top: 23%; }
.about-hero-art__signals i:nth-child(2) { left: 37%; top: 17%; width: 9px; height: 1px; }
.about-hero-art__signals i:nth-child(3) { left: 36%; top: 35%; background: var(--accent); }
.about-hero-art__signals i:nth-child(4) { left: 48%; top: 48%; width: 7px; height: 1px; }
.about-hero-art__signals i:nth-child(5) { left: 62%; top: 31%; }
.about-hero-art__signals i:nth-child(6) { left: 73%; top: 22%; width: 8px; height: 1px; }
.about-hero-art__signals i:nth-child(7) { left: 81%; top: 54%; }
.about-hero-art__signals i:nth-child(8) { left: 57%; top: 66%; width: 6px; height: 1px; }

/* ---------- Timeline ---------- */
.tl { border-top: 1px solid var(--line); padding-block: clamp(1.5rem, 3vw, 2.5rem); }
.tl__role { font-size: var(--step-lg); }
.tl__list { list-style: none; margin: 0.75rem 0 0; padding: 0; }
.tl__list li { position: relative; padding-left: 1.25rem; font-size: 0.92rem; color: var(--ivory-dim); margin-bottom: 0.4rem; }
.tl__list li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 8px; height: 1px; background: var(--accent); }

/* ---------- Services ---------- */
.service {
  border-top: 1px solid var(--line);
  padding-block: 1.35rem;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  transition: background-color 0.35s ease;
}
.service:hover { background: var(--ink-2); }
.service h3 { font-family: var(--font-ui); font-size: 1rem; letter-spacing: 0.01em; font-weight: 500; }
.service p { font-size: 0.88rem; margin: 0.35rem 0 0; }

/* ---------- Contact ---------- */
.contact-block { border-top: 1px solid var(--line); padding-top: 1.25rem; }
.contact-link { font-family: var(--font-display); font-size: clamp(1.3rem, 3vw, 2.2rem); display: inline-block; }
.contact-link:hover { color: var(--accent); }

.field { margin-bottom: 1.25rem; }
.field label { display: block; font-size: var(--step-meta); letter-spacing: 0.18em; text-transform: uppercase; color: var(--grey); margin-bottom: 0.5rem; }
.field input, .field select, .field textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ivory);
  font-family: var(--font-ui);
  font-size: 1rem;
  padding: 0.6rem 0;
  border-radius: 0;
}
.field select option { background: var(--ink-2); color: var(--ivory); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-bottom-color: var(--accent); }
.field .err { display: block; color: #ff8b7a; font-size: 0.78rem; margin-top: 0.4rem; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"], .field select[aria-invalid="true"] { border-bottom-color: #ff8b7a; }
.form-note { border: 1px solid var(--line); padding: 1rem 1.15rem; font-size: 0.82rem; color: var(--ivory-dim); }
.google-form {
  display: block;
  width: 100%;
  min-height: 880px;
  border: 1px solid var(--line);
  background: var(--ivory);
}

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: clamp(2.5rem, 5vw, 4rem) 2rem; }
.footer__statement { font-size: var(--step-lg); max-width: 22ch; }
.footer__links { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.footer__links a { font-size: 0.85rem; color: var(--ivory-dim); }
.footer__links a:hover { color: var(--accent); }
.footer__bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; border-top: 1px solid var(--line); margin-top: 2.5rem; padding-top: 1.25rem; }

/* ---------- Case study ---------- */
.case-hero { padding: clamp(8rem, 16vh, 12rem) 0 clamp(2.5rem, 6vw, 4rem); border-bottom: 1px solid var(--line); }
.case-hero__title { font-size: var(--step-hero); max-width: 15ch; }
.case-section { border-top: 1px solid var(--line); padding-block: clamp(2.5rem, 6vw, 4.5rem); }
.case-section h2 { font-size: var(--step-lg); }
.feature-item { border-top: 1px solid var(--line); padding-block: 1.1rem; }
.feature-item h3 { font-family: var(--font-ui); font-size: 0.95rem; font-weight: 500; }
.feature-item p { font-size: 0.86rem; margin: 0.3rem 0 0; }
.arch-step {
  border: 1px solid var(--line);
  padding: 1rem 1.15rem;
  font-size: 0.82rem;
  color: var(--ivory-dim);
  position: relative;
  height: 100%;
  background: var(--ink-2);
}
.arch-step b { display: block; color: var(--ivory); font-family: var(--font-ui); font-weight: 500; font-size: 0.9rem; margin-bottom: 0.3rem; }
.arch-step em { position: absolute; top: 0.55rem; right: 0.75rem; font-style: normal; font-size: 0.62rem; color: var(--accent); letter-spacing: 0.16em; }

.next-project { display: block; border-top: 1px solid var(--line); padding-block: clamp(2rem, 5vw, 3.5rem); }
.next-project:hover .next-project__title { color: var(--accent); }
.next-project__title { font-size: var(--step-xl); transition: color 0.35s ease; }

/* ---------- Page transition curtain ---------- */
.curtain {
  position: fixed;
  inset: 0;
  background: var(--accent);
  z-index: 1150;
  transform: scaleY(0);
  transform-origin: bottom;
  pointer-events: none;
}

.back-to-top {
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--ivory);
  border-radius: 100px;
  padding: 0.5rem 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.back-to-top:hover { background: var(--ivory); color: var(--ink); }