/* =========================================================================
   Motaz Tarek — UI/UX Design Portfolio
   Design system + layout
   Palette: 60% #111316 · 30% #D9DCE1 · 10% #E5202B
   ========================================================================= */

/* ---------- 1. Design tokens ---------- */
:root {
  /* Core palette (do not introduce other accents) */
  --color-primary: #111316;
  --color-secondary: #D9DCE1;
  --color-accent: #E5202B;

  /* Surfaces derived from the primary colour */
  --bg: var(--color-primary);
  --surface-1: #16181d;
  --surface-2: #1b1e23;
  --surface-3: #22262c;

  /* Ink derived from the secondary colour */
  --ink: var(--color-secondary);
  --ink-strong: #F2F4F7;
  --muted: rgba(217, 220, 225, .68);
  --dim: rgba(217, 220, 225, .60);

  /* Lines */
  --line: rgba(217, 220, 225, .13);
  --line-strong: rgba(217, 220, 225, .24);
  --line-ink: rgba(17, 19, 22, .14);

  /* Accent */
  --accent: var(--color-accent);
  --accent-ink: #ffffff;
  --accent-soft: rgba(229, 32, 43, .12);
  /* Accessible tint of the accent for small text on dark surfaces (WCAG AA) */
  --accent-text: #EB515A;

  /* Type */
  --font-display: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "DM Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --fs-hero: clamp(52px, 8.6vw, 128px);
  --fs-h2: clamp(38px, 6vw, 84px);
  --fs-h3: clamp(30px, 3.6vw, 52px);
  --fs-body: clamp(15px, 1.02vw, 17px);
  --fs-label: clamp(10.5px, .78vw, 12px);

  /* Layout */
  --max: 1300px;
  --gutter: clamp(20px, 4.4vw, 64px);
  --section-y: clamp(72px, 9vw, 150px);

  /* Motion */
  --ease: cubic-bezier(.22, 1, .36, 1);
  --dur: 260ms;

  --radius: 4px;
  --radius-lg: 12px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

/* Fine film grain for a tactile, non-flat dark surface */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: .045;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }

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

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

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: fixed; top: 12px; left: 12px; z-index: 200;
  transform: translateY(-200%);
  background: var(--accent); color: #fff;
  padding: 12px 18px; border-radius: var(--radius);
  font-size: 13px; font-weight: 500;
  transition: transform var(--dur) var(--ease);
}
.skip:focus { transform: none; }

/* ---------- 3. Layout helpers ---------- */
.wrap {
  width: min(var(--max), calc(100% - (var(--gutter) * 2)));
  margin-inline: auto;
}

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(56px, 6.5vw, 104px); }

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  font-weight: 400;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.rule { height: 1px; background: var(--line); border: 0; }

/* ---------- 4. Typography ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: .92;
  letter-spacing: -.02em;
  text-wrap: balance;
}

.sec-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-h2);
  line-height: .95;
  letter-spacing: -.02em;
  color: var(--ink-strong);
  text-wrap: balance;
}

.lead { color: var(--muted); max-width: 56ch; }

/* ---------- 5. Section header pattern ---------- */
.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(20px, 4vw, 64px);
  padding-bottom: clamp(26px, 3vw, 46px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(40px, 5vw, 76px);
}

.sec-head__index {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-text);
  display: block;
  margin-bottom: 14px;
}

.sec-head__note {
  max-width: 40ch;
  color: var(--muted);
  font-size: clamp(13px, 1vw, 15px);
  line-height: 1.6;
  padding-bottom: .35em;
}

@media (max-width: 860px) {
  .sec-head { flex-direction: column; align-items: flex-start; gap: 18px; }
  .sec-head__note { padding-bottom: 0; }
}

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .7em;
  padding: 15px 24px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .01em;
  line-height: 1;
  white-space: nowrap;
  transition:
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

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

.btn__arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .btn__arrow { transform: translate(2px, -2px); }

.btn__icon { width: 1em; height: 1em; flex: none; }

.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn--primary:hover {
  background: #cf1c26;
  box-shadow: 0 14px 30px -14px rgba(229, 32, 43, .8);
}

.btn--ghost {
  background: rgba(217, 220, 225, .02);
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn--ghost:hover {
  border-color: var(--ink);
  background: rgba(217, 220, 225, .06);
  box-shadow: 0 14px 30px -18px rgba(0, 0, 0, .9);
}

.btn--link {
  padding: 4px 0;
  border-radius: 0;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink);
}
.btn--link:hover { border-color: var(--accent); color: var(--accent-ink); }
.btn--link:hover { transform: none; }

/* ---------- 7. Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(17, 19, 22, .82);
  backdrop-filter: saturate(140%) blur(16px);
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--line);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 23px;
  letter-spacing: .02em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--ink-strong);
}
.brand__mark {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--accent-text);
  font-weight: 500;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.6vw, 40px);
}

.nav__link {
  position: relative;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--muted);
  padding: 6px 0;
  transition: color var(--dur) var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav__link:hover { color: var(--ink-strong); }
.nav__link:hover::after { transform: scaleX(.5); }
.nav__link[aria-current="true"] { color: var(--ink-strong); }
.nav__link[aria-current="true"]::after { transform: scaleX(1); }

.nav__cta {
  padding: 11px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink-strong);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.nav__cta::after { display: none; }
.nav__cta:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

.nav__toggle {
  display: none;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 10px 14px;
}
.nav__toggle:hover { border-color: var(--ink); }
.nav__toggle-bars { display: grid; gap: 3px; }
.nav__toggle-bars i { display: block; width: 16px; height: 1.5px; background: currentColor; transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease); }
.nav.is-open .nav__toggle-bars i:first-child { transform: translateY(2.25px) rotate(45deg); }
.nav.is-open .nav__toggle-bars i:last-child { transform: translateY(-2.25px) rotate(-45deg); }

/* ---------- 8. Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: 0;
  border-bottom: 1px solid var(--line);
}

.hero__grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 92px 92px;
  -webkit-mask-image: radial-gradient(120% 85% at 78% 0%, #000 0%, transparent 68%);
  mask-image: radial-gradient(120% 85% at 78% 0%, #000 0%, transparent 68%);
  opacity: .6;
}

.hero__monogram {
  position: absolute;
  right: -1vw;
  bottom: -8vw;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(240px, 34vw, 560px);
  line-height: .7;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(217, 220, 225, .07);
  pointer-events: none;
  user-select: none;
}

.hero__inner { position: relative; }

.hero__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: clamp(40px, 6vw, 84px);
}
.hero__top .mono { max-width: 34ch; }
.hero__top .mono--right { text-align: right; }
.hero__top i {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
  animation: pulse 2.6s var(--ease) infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: end;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-hero);
  line-height: .9;
  letter-spacing: -.025em;
  color: var(--ink-strong);
  text-wrap: balance;
}
.hero__title em {
  font-style: normal;
  color: var(--accent);
}

.hero__support {
  margin-top: clamp(22px, 2.6vw, 34px);
  max-width: 46ch;
  color: var(--muted);
  font-size: clamp(14px, 1.05vw, 16.5px);
  line-height: 1.65;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 3vw, 40px);
}

/* Hero visual: real project work, presented as a device + browser preview */
.hero__visual {
  position: relative;
  padding-bottom: clamp(56px, 7vw, 104px);
}
.hero__preview {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  overflow: hidden;
  box-shadow: 0 50px 90px -50px rgba(0, 0, 0, .95), 0 0 0 1px rgba(0, 0, 0, .4);
}
.hero__preview-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 40px;
  padding: 0 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
}
.hero__preview-bar .mono { color: var(--dim); letter-spacing: .1em; }
.hero__preview-crop {
  height: clamp(220px, 26vw, 340px);
  overflow: hidden;
  background: #0b0c0e;
}
.hero__preview-crop img { width: 100%; height: auto; }

.hero__tag {
  position: absolute;
  left: clamp(-14px, -1vw, -6px);
  bottom: clamp(28px, 4vw, 60px);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  box-shadow: 0 24px 40px -20px rgba(229, 32, 43, .9);
}
.hero__tag strong { font-family: var(--font-display); font-weight: 700; font-size: 22px; line-height: 1; letter-spacing: -.01em; }
.hero__tag span { font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }

.hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(30px, 4vw, 56px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}
.hero__meta div { background: var(--bg); padding: 18px 20px; }
.hero__meta dt { font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin-bottom: 8px; }
.hero__meta dd { margin: 0; font-size: 14px; color: var(--ink); line-height: 1.4; }

/* Ticker */
.ticker {
  position: relative;
  border-top: 1px solid var(--line);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker__track {
  display: flex;
  width: max-content;
  gap: 0;
  padding: 20px 0;
  animation: ticker 46s linear infinite;
}
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding-inline: 26px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(17px, 1.7vw, 24px);
  letter-spacing: .01em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.ticker__item::after { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- 9. About ---------- */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: clamp(28px, 5vw, 80px);
}

.about__statement {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-h3);
  line-height: 1.02;
  letter-spacing: -.015em;
  color: var(--ink-strong);
  text-wrap: balance;
}
.about__statement em { font-style: normal; color: var(--accent); }

.about__copy p + p { margin-top: 18px; }
.about__copy p { color: var(--muted); }
.about__copy strong { color: var(--ink-strong); font-weight: 500; }

.about__facts {
  margin-top: clamp(28px, 3.4vw, 44px);
  border-top: 1px solid var(--line);
}
.about__fact {
  display: grid;
  grid-template-columns: minmax(96px, 150px) 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.about__fact dt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .13em; text-transform: uppercase; color: var(--dim); }
.about__fact dd { margin: 0; font-size: 15px; color: var(--ink); }

/* ---------- 10. Work ---------- */
.project + .project {
  margin-top: clamp(56px, 7vw, 110px);
  padding-top: clamp(40px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

.project__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 44ch);
  gap: clamp(20px, 4vw, 64px);
  align-items: end;
  margin-bottom: clamp(26px, 3.4vw, 48px);
}
.project__index {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--dim);
  display: block;
  margin-bottom: 16px;
}
.project__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 6vw, 84px);
  line-height: .92;
  letter-spacing: -.022em;
  color: var(--ink-strong);
}
.project__desc { color: var(--muted); font-size: clamp(13.5px, 1vw, 15.5px); line-height: 1.65; }
.project__desc + .project__desc { margin-top: 14px; }
.project__desc strong { color: var(--ink); font-weight: 500; }

.project__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 20px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  color: var(--ink);
}
.badge i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge--actual { background: var(--accent); border-color: var(--accent); color: #fff; }
.badge--practice { background: rgba(217, 220, 225, .05); }
.badge--practice i { background: var(--muted); }

.project__category { font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); }

/* Showcase stages */
.stage {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  padding: clamp(18px, 3vw, 46px);
  overflow: hidden;
}
.stage--light {
  background: var(--color-secondary);
  border-color: rgba(17, 19, 22, .12);
}
.stage--light .mono,
.stage--light .frame-caption { color: rgba(17, 19, 22, .66); }
.stage--light .frame-caption strong { color: #111316; }
.stage--light .device__caption { color: rgba(17, 19, 22, .66); }
.stage--light .device__caption strong { color: #111316; }

.stage__caption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  align-items: center;
  justify-content: space-between;
  margin-top: clamp(18px, 2.4vw, 30px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.stage--light .stage__caption { border-color: rgba(17, 19, 22, .12); }

/* American Dream composition */
.browser.ad__web {
  height: clamp(320px, 42vw, 560px);
  margin-bottom: clamp(16px, 2.4vw, 28px);
}

.ad__row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(12px, 1.8vw, 22px);
  margin-bottom: clamp(16px, 2.4vw, 28px);
}
.ad__row .browser { height: clamp(210px, 20vw, 280px); }

.ad__phones {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 2.4vw, 30px);
  justify-items: center;
  padding-top: clamp(10px, 2vw, 22px);
}

/* Playground composition */
.pg__row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2.6vw, 40px);
  align-items: start;
  justify-items: center;
}

/* E-commerce composition */
.ec__grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1fr;
  grid-template-rows: clamp(190px, 19vw, 250px) clamp(190px, 19vw, 250px);
  gap: clamp(12px, 1.8vw, 20px);
}
.ec__home { grid-column: 1; grid-row: 1 / span 2; }
.ec__products { grid-column: 2; grid-row: 1; }
.ec__details { grid-column: 2; grid-row: 2; }
.ec__cart { grid-column: 3; grid-row: 1 / span 2; }

.practice-note {
  margin-top: clamp(22px, 3vw, 36px);
  padding: 16px 20px;
  border-left: 2px solid var(--accent);
  background: rgba(217, 220, 225, .03);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ---------- 11. Devices ---------- */
.device {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 19.5;
  container-type: inline-size;
  filter: drop-shadow(0 30px 40px rgba(0, 0, 0, .5));
  transition: transform var(--dur) var(--ease), filter var(--dur) var(--ease);
}
.device:hover { transform: translateY(-4px); filter: drop-shadow(0 38px 50px rgba(0, 0, 0, .6)); }

.device__body {
  position: absolute;
  inset: 0;
  padding: 1.3cqw;
  border-radius: 13.5cqw;
  background:
    linear-gradient(155deg, #6b727c 0%, #2a2e35 16%, #14161a 50%, #2f343b 84%, #6b727c 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .10);
}
.device__bezel {
  position: relative;
  height: 100%;
  width: 100%;
  padding: 2.7cqw;
  border-radius: 12.2cqw;
  background: #07080a;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .06);
}
.device__screen {
  position: relative;
  height: 100%;
  width: 100%;
  border-radius: 9.6cqw;
  overflow: hidden;
  background: #0b0c0e;
}
.device__viewport {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(217, 220, 225, .35) transparent;
}
.device__viewport::-webkit-scrollbar { width: 4px; }
.device__viewport::-webkit-scrollbar-thumb { background: rgba(217, 220, 225, .3); border-radius: 4px; }
.device__viewport img { width: 100%; height: auto; }

/* Screens whose design has no built-in status bar get a small safe inset */
.device--inset .device__viewport { padding-top: 7.2%; }

.device__island {
  position: absolute;
  top: 2.6cqw;
  left: 50%;
  transform: translateX(-50%);
  width: 27cqw;
  height: 6.6cqw;
  border-radius: 4cqw;
  background: #050607;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .05);
  z-index: 2;
  pointer-events: none;
}
.device--inset .device__island { top: 2.6cqw; }

.device__caption {
  margin-top: 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--dim);
}
.device__caption strong { color: var(--ink); font-weight: 500; }

.device-slot { display: flex; flex-direction: column; align-items: center; width: 100%; max-width: 240px; }
.device-slot--primary { position: relative; }
.device-slot--primary .device { filter: drop-shadow(0 34px 46px rgba(0, 0, 0, .6)); }

/* ---------- 12. Browser ---------- */
.browser {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: #0d0f12;
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.browser:hover {
  transform: translateY(-3px);
  border-color: rgba(217, 220, 225, .4);
  box-shadow: 0 26px 50px -26px rgba(0, 0, 0, .9);
}
.browser__bar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 38px;
  padding: 0 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
}
.browser__dots { display: flex; gap: 6px; flex: none; }
.browser__dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(217, 220, 225, .22); }
.browser__dots i:nth-child(2) { background: rgba(217, 220, 225, .16); }
.browser__dots i:nth-child(3) { background: rgba(217, 220, 225, .16); }
.browser__url {
  flex: 1;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.browser__tag { flex: none; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .12em; color: var(--accent-text); }

.browser__viewport {
  position: relative;
  flex: 1;
  min-height: 0;
  padding: 0;
  margin: 0;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  background: #0b0c0e;
  scrollbar-width: thin;
  scrollbar-color: rgba(217, 220, 225, .35) transparent;
}
.browser__viewport::-webkit-scrollbar { width: 6px; }
.browser__viewport::-webkit-scrollbar-thumb { background: rgba(217, 220, 225, .3); border-radius: 6px; }
.browser__viewport img { display: block; width: 100%; height: auto; margin: 0; padding: 0; border: 0; }

/* ---------- 13. Skills ---------- */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}
.skills__col { padding: clamp(26px, 3vw, 44px) clamp(22px, 2.6vw, 40px) clamp(26px, 3vw, 44px) 0; }
.skills__col + .skills__col { border-left: 1px solid var(--line); padding-left: clamp(22px, 2.6vw, 40px); }
.skills__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 22px;
  display: block;
}
.skills__list li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  color: var(--ink);
}
.skills__list li:last-child { border-bottom: 0; }
.skills__list span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--dim);
  letter-spacing: .1em;
  flex: none;
  padding-top: 2px;
}
.tools__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.tool {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(217, 220, 225, .02);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.tool:hover { border-color: var(--line-strong); background: rgba(217, 220, 225, .05); transform: translateY(-2px); }
.tool strong { font-family: var(--font-display); font-weight: 600; font-size: 20px; letter-spacing: .01em; color: var(--ink-strong); }
.tool span { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); }
.skills__note { margin-top: 22px; color: var(--muted); font-size: 13px; line-height: 1.6; }

/* ---------- 14. Approach ---------- */
.approach__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}
.step {
  position: relative;
  padding: clamp(28px, 3vw, 44px) clamp(20px, 2.2vw, 34px) clamp(28px, 3vw, 44px) 0;
}
.step + .step { border-left: 1px solid var(--line); padding-left: clamp(20px, 2.2vw, 34px); }
.step__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 4.4vw, 64px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(217, 220, 225, .3);
  letter-spacing: -.02em;
  display: block;
  margin-bottom: 20px;
}
.step:hover .step__num { -webkit-text-stroke-color: var(--accent); }
.step__title { font-family: var(--font-display); font-weight: 600; font-size: clamp(22px, 2vw, 30px); letter-spacing: -.01em; color: var(--ink-strong); margin-bottom: 12px; }
.step p { color: var(--muted); font-size: 14px; line-height: 1.62; }
.approach__note { margin-top: clamp(24px, 3vw, 36px); color: var(--dim); font-size: 12.5px; font-family: var(--font-mono); letter-spacing: .04em; }

/* ---------- 15. Contact ---------- */
.contact { border-top: 1px solid var(--line); }
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: end;
}
.contact__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(42px, 7.4vw, 108px);
  line-height: .9;
  letter-spacing: -.025em;
  color: var(--ink-strong);
  text-wrap: balance;
}
.contact__title em { font-style: normal; color: var(--accent); }
.contact__support { color: var(--muted); max-width: 42ch; margin-bottom: clamp(24px, 3vw, 36px); }
.contact__actions { display: grid; grid-template-columns: repeat(2, minmax(0, 176px)); gap: 12px; justify-content: start; }
.contact__actions .btn { justify-content: center; }
.contact__list { margin-top: clamp(34px, 4vw, 56px); border-top: 1px solid var(--line); }
.contact__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.contact__item dt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.contact__item dd { margin: 0; }
.contact__link { display: inline-flex; align-items: center; gap: 10px; font-size: clamp(15px, 1.4vw, 19px); color: var(--ink-strong); transition: color var(--dur) var(--ease); }
.contact__link:hover { color: var(--accent-text); }
.contact__link svg { flex: none; opacity: .6; transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease); }
.contact__link:hover svg { transform: translate(2px, -2px); opacity: 1; }

.copy-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--line-strong); border-radius: var(--radius);
  padding: 9px 13px; transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.copy-btn:hover { color: var(--ink-strong); border-color: var(--ink); background: rgba(217, 220, 225, .05); }
.copy-btn.is-done { color: var(--accent-text); border-color: var(--accent); }

/* ---------- 16. Footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: clamp(34px, 4vw, 56px); }
.footer__grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 22px 40px;
}
.footer__brand { font-family: var(--font-display); font-weight: 700; font-size: 22px; letter-spacing: .02em; text-transform: uppercase; color: var(--ink-strong); }
.footer__brand small { display: block; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .16em; color: var(--dim); font-weight: 400; margin-top: 6px; text-transform: uppercase; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 22px; }
.footer__nav a { font-size: 13px; color: var(--muted); transition: color var(--dur) var(--ease); }
.footer__nav a:hover { color: var(--ink-strong); }
.footer__meta { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); }
.footer__meta a { transition: color var(--dur) var(--ease); }
.footer__meta a:hover { color: var(--accent-text); }

/* ---------- 17. Entrance motion ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }

/* ---------- 18. Responsive ---------- */
@media (max-width: 1120px) {
  .hero__body { grid-template-columns: 1fr; align-items: start; }
  .hero__visual { padding-bottom: 0; margin-top: 40px; }
  .hero__preview-crop { height: clamp(240px, 40vw, 380px); }
  .about__grid { grid-template-columns: 1fr; gap: 32px; }
  .project__head { grid-template-columns: 1fr; gap: 20px; }
  .skills__grid { grid-template-columns: 1fr; }
  .skills__col { padding-right: 0; }
  .skills__col + .skills__col { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .approach__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step:nth-child(3) { border-left: 0; padding-left: 0; }
  .step:nth-child(3), .step:nth-child(4) { border-top: 1px solid var(--line); }
  .contact__grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 980px) {
  .ad__row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ad__phones { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ad__row .browser { height: clamp(240px, 40vw, 320px); }
  .ec__grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: clamp(230px, 40vw, 300px) clamp(200px, 34vw, 260px) clamp(200px, 34vw, 260px);
  }
  .ec__home { grid-column: 1 / span 2; grid-row: 1; }
  .ec__products { grid-column: 1; grid-row: 2; }
  .ec__details { grid-column: 2; grid-row: 2; }
  .ec__cart { grid-column: 1 / span 2; grid-row: 3; }
}

@media (max-width: 900px) {
  .nav__inner { height: 68px; }
  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 22px;
    background: rgba(17, 19, 22, .98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
  }
  .nav.is-open .nav__links { opacity: 1; visibility: visible; transform: none; }
  .nav__link { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav__link::after { display: none; }
  .nav__link[aria-current="true"] { color: var(--accent-text); }
  .nav__cta { margin-top: 16px; text-align: center; justify-content: center; border-bottom: 1px solid var(--line-strong); }
  .pg__row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 18px; }
}

@media (max-width: 720px) {
  .hero__top { flex-direction: column; gap: 14px; }
  .hero__top .mono--right { text-align: left; }
  .hero__meta { grid-template-columns: 1fr; }
  .hero__tag { left: 0; bottom: 12px; padding: 11px 14px; }
  .hero__tag strong { font-size: 18px; }
  .about__fact { grid-template-columns: 1fr; gap: 6px; }
  .tools__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact__item { flex-direction: column; align-items: flex-start; gap: 10px; }
}

@media (max-width: 560px) {
  .hero__preview-crop { height: 230px; }
  .hero__visual { margin-top: 30px; }
  .approach__grid { grid-template-columns: 1fr; }
  .step { padding-right: 0; }
  .step + .step { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .step:nth-child(3) { border-left: 0; }
  .ec__grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, minmax(210px, auto));
  }
  .ec__home { grid-column: 1; grid-row: 1; }
  .ec__products { grid-column: 1; grid-row: 2; }
  .ec__details { grid-column: 1; grid-row: 3; }
  .ec__cart { grid-column: 1; grid-row: 4; }
  .ad__row { grid-template-columns: 1fr; }
  .ad__row .browser { height: 260px; }
  .footer__grid { flex-direction: column; align-items: flex-start; }
}

/* Horizontal scroll galleries on small screens keep screens inspectable */
@media (max-width: 640px) {
  .pg__row,
  .ad__phones {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 18px;
    padding: 4px 2px 18px;
    scrollbar-width: thin;
    scrollbar-color: rgba(17, 19, 22, .35) transparent;
  }
  .pg__row .device-slot,
  .ad__phones .device-slot { flex: 0 0 min(64vw, 220px); scroll-snap-align: center; }

  .contact__actions { grid-template-columns: 1fr; }
}

/* ---------- 19. Touch targets ---------- */
/* Keep every interactive control at least 44px tall on touch-sized viewports */
@media (max-width: 900px) {
  .nav__toggle { min-height: 44px; }
  .brand { padding-block: 11px; }
}

@media (pointer: coarse), (max-width: 900px) {
  .copy-btn {
    min-height: 44px;
    padding-block: 11px;
  }
  .contact__link { padding-block: 10px; }
  .footer__nav a,
  .footer__meta a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }
}

/* ---------- 20. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .ticker__track { animation: none; transform: none; }
  .device:hover, .browser:hover, .tool:hover, .btn:hover, .nav__cta:hover { transform: none; }
}