/* =========================================================
   Uniweldz Solutions — Global Stylesheet
   Premium industrial design system (HTML5 + CSS3 only)
   ========================================================= */

/* ---------- 1. Design tokens ---------- */
:root {
  --black: #111111;
  --graphite: #2d2d2d;
  --off-white: #f8f6f2;
  --light-gray: #d9d9d9;
  --silver: #c9c9c9;
  --white: #ffffff;
  --orange: #f97316;
  --orange-dark: #ea6206;

  --font-head: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;

  --maxw: 1240px;
  --pad: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(4.5rem, 9vw, 8.5rem);
  --shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.55);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--black);
  background: var(--off-white);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); }
h2 { font-size: clamp(1.9rem, 4vw, 3.1rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); }

p { margin: 0 0 1rem; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section { padding-block: var(--section-y); }
.section--dark { background: var(--black); color: var(--off-white); }
.section--graphite { background: var(--graphite); color: var(--off-white); }

.eyebrow {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--orange);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}
.eyebrow::before { content: ""; width: 42px; height: 2px; background: var(--orange); }

.lead {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  color: #55524d;
  max-width: 62ch;
}
.section--dark .lead, .section--graphite .lead { color: var(--silver); }

.section-head { max-width: 760px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }

/* ---------- 3. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 1.9rem;
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease),
    color 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.btn:hover { transform: translateY(-2px); }

.btn--primary { background: var(--orange); color: var(--white); }
.btn--primary:hover { background: var(--orange-dark); box-shadow: 0 12px 34px -12px rgba(249,115,22,0.85); }

.btn--ghost { background: transparent; color: currentColor; border-color: rgba(201,201,201,0.45); }
.btn--ghost:hover { border-color: var(--orange); color: var(--orange); }

.btn--dark { background: var(--black); color: var(--off-white); }
.btn--dark:hover { background: var(--graphite); }

.btn--lg { padding: 1.15rem 2.6rem; font-size: 1rem; }

.link-more {
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.link-more span { transition: transform 0.3s var(--ease); }
.link-more:hover span { transform: translateX(6px); }

/* ---------- 4. Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 3px;
  width: 0;
  background: var(--orange);
  z-index: 200;
  transition: width 0.1s linear;
}

/* ---------- 5. Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 150;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), padding 0.4s var(--ease);
  padding-block: 1.15rem;
}
.site-header.is-solid {
  background: rgba(17,17,17,0.96);
  border-bottom-color: rgba(201,201,201,0.14);
  backdrop-filter: blur(10px);
  padding-block: 0.7rem;
}

.header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.5rem;
}

.brand { display: inline-flex; align-items: center; gap: 0.7rem; min-width: 0; color: var(--off-white); }
.brand__mark {
  width: 34px; height: 34px; flex-shrink: 0;
  display: grid; place-items: center;
  background: var(--orange); color: var(--white);
  font-family: var(--font-head); font-weight: 700; font-size: 1rem;
  border-radius: 2px;
}
.brand__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand__name em { font-style: normal; color: var(--orange); }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav__list { display: flex; align-items: center; gap: 1.75rem; }
.nav__link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--light-gray);
  position: relative;
  padding-block: 0.35rem;
  transition: color 0.25s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  height: 2px; width: 0;
  background: var(--orange);
  transition: width 0.3s var(--ease);
}
.nav__link:hover, .nav__link.is-active { color: var(--white); }
.nav__link:hover::after, .nav__link.is-active::after { width: 100%; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid rgba(217,217,217,0.3);
  border-radius: 2px;
  cursor: pointer;
  padding: 0;
  position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 20px; height: 2px;
  background: var(--off-white);
  transform: translateX(-50%);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle span { top: 50%; margin-top: -1px; }
.nav-toggle span::before { top: -6px; left: 0; transform: none; }
.nav-toggle span::after { top: 6px; left: 0; transform: none; }
.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); }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--black);
  color: var(--off-white);
  overflow: hidden;
  padding-block: 8rem 4rem;
}
.hero__media {
  position: absolute; inset: 0;
  object-fit: cover;
  width: 100%; height: 100%;
  opacity: 0.55;
  animation: heroDrift 22s var(--ease) infinite alternate;
}
@keyframes heroDrift {
  from { transform: scale(1.04) translate3d(0,0,0); }
  to { transform: scale(1.12) translate3d(-1.5%, -1%, 0); }
}
.hero__overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(17,17,17,0.96) 0%, rgba(17,17,17,0.72) 45%, rgba(17,17,17,0.35) 100%),
    linear-gradient(180deg, rgba(17,17,17,0.9) 0%, rgba(17,17,17,0.2) 40%, rgba(17,17,17,0.95) 100%);
}
.hero__grid {
  position: absolute; inset: -20%;
  background-image:
    linear-gradient(rgba(201,201,201,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,201,201,0.07) 1px, transparent 1px);
  background-size: 72px 72px;
  animation: gridMove 18s linear infinite;
  -webkit-mask-image: radial-gradient(circle at 60% 50%, #000 0%, transparent 78%);
  mask-image: radial-gradient(circle at 60% 50%, #000 0%, transparent 78%);
}
@keyframes gridMove { to { transform: translate3d(72px, 72px, 0); } }

.hero__line {
  position: absolute;
  height: 1px; width: 40%;
  background: linear-gradient(90deg, transparent, rgba(249,115,22,0.85), transparent);
  animation: sweep 7s linear infinite;
  opacity: 0.7;
}
.hero__line:nth-of-type(1) { top: 28%; animation-delay: 0s; }
.hero__line:nth-of-type(2) { top: 58%; animation-delay: 2.4s; }
.hero__line:nth-of-type(3) { top: 78%; animation-delay: 4.6s; }
@keyframes sweep {
  0% { transform: translateX(-60%); opacity: 0; }
  20% { opacity: 0.8; }
  100% { transform: translateX(260%); opacity: 0; }
}
.hero__glow {
  position: absolute;
  right: -10%; bottom: -20%;
  width: 55vw; height: 55vw;
  background: radial-gradient(circle, rgba(249,115,22,0.22), transparent 62%);
  filter: blur(20px);
  animation: pulseGlow 8s ease-in-out infinite;
}
@keyframes pulseGlow { 50% { opacity: 0.55; transform: scale(1.08); } }

.hero__content { position: relative; z-index: 2; max-width: 900px; }
.hero__title span { color: var(--orange); }
.hero__sub {
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  color: var(--light-gray);
  max-width: 62ch;
  margin-bottom: 2.4rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero__meta {
  position: relative; z-index: 2;
  margin-top: clamp(3rem, 6vw, 5rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: rgba(201,201,201,0.16);
  border-block: 1px solid rgba(201,201,201,0.16);
}
.hero__meta div { background: rgba(17,17,17,0.72); padding: 1.4rem 1.5rem; }
.hero__meta strong { display: block; font-family: var(--font-head); font-size: 1.7rem; color: var(--white); }
.hero__meta span { font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--silver); }

/* Inner page hero */
.page-hero {
  position: relative;
  background: var(--black);
  color: var(--off-white);
  padding: clamp(9rem, 16vw, 12rem) 0 clamp(4rem, 7vw, 6rem);
  overflow: hidden;
}
.page-hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(201,201,201,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,201,201,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent);
  mask-image: linear-gradient(180deg, #000, transparent);
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb { font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--silver); }
.breadcrumb a:hover { color: var(--orange); }

/* ---------- 7. Cards & grids ---------- */
.grid { display: grid; gap: 1.5rem; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: 2px;
  padding: clamp(1.5rem, 2.5vw, 2.1rem);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.section--dark .card, .section--graphite .card {
  background: #191919;
  border-color: rgba(201,201,201,0.16);
  color: var(--off-white);
}
.card:hover { transform: translateY(-8px); border-color: var(--orange); box-shadow: var(--shadow); }
.card h3 { margin-bottom: 0.5rem; }
.card p { color: #5c5852; margin-bottom: 0; font-size: 0.95rem; }
.section--dark .card p, .section--graphite .card p { color: var(--silver); }

.card__icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border: 1px solid rgba(249,115,22,0.45);
  border-radius: 2px;
  color: var(--orange);
  margin-bottom: 1.3rem;
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
}
.card:hover .card__icon { background: var(--orange); color: var(--white); }
.card__icon svg { width: 22px; height: 22px; }

.card__num {
  font-family: var(--font-head);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--orange);
  display: block;
  margin-bottom: 0.8rem;
}
.card--service .link-more { margin-top: 1.2rem; }

.tile {
  display: flex; align-items: center; gap: 0.9rem;
  padding: 1.4rem 1.5rem;
  background: #191919;
  border: 1px solid rgba(201,201,201,0.14);
  border-radius: 2px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.32s var(--ease), border-color 0.32s var(--ease), background 0.32s var(--ease);
}
.tile:hover { transform: translateY(-6px); border-color: var(--orange); background: #1f1f1f; }
.tile svg { width: 22px; height: 22px; color: var(--orange); flex-shrink: 0; }

/* ---------- 8. Stats / counters ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: rgba(201,201,201,0.18);
  border: 1px solid rgba(201,201,201,0.18);
}
.stat { background: var(--black); padding: clamp(1.8rem, 3vw, 2.6rem); }
.stat__value {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}
.stat__label {
  margin-top: 0.7rem;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

/* ---------- 9. Process timeline ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.25rem;
  counter-reset: step;
}
.process__step {
  color: #000;
  position: relative;
  padding: 1.4rem 1.2rem;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-top: 3px solid var(--orange);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.process__step:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.process__step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-head);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--orange);
  display: block;
  margin-bottom: 0.4rem;
}
.process__step h3 { font-size: 1.02rem; margin: 0; }

/* ---------- 10. Project cards ---------- */
.project {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
  display: flex;
  flex-direction: column;
}
.project:hover { transform: translateY(-8px); border-color: var(--orange); box-shadow: var(--shadow); }
.project__media { overflow: hidden; aspect-ratio: 3 / 2; background: var(--graphite); }
.project__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.project:hover .project__media img { transform: scale(1.08); }
.project__body { padding: 1.7rem; display: flex; flex-direction: column; gap: 0.6rem; flex: 1; }
.project__tag { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--orange); }
.project__body p { color: #5c5852; font-size: 0.95rem; }
.project__body .link-more { margin-top: auto; }

.metrics { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.4rem; }
.metrics li {
  font-size: 0.75rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--light-gray);
  color: var(--graphite);
  border-radius: 2px;
}

/* ---------- 11. CTA band ---------- */
.cta-band {
  position: relative;
  background: var(--black);
  color: var(--off-white);
  text-align: center;
  padding-block: clamp(4.5rem, 9vw, 7.5rem);
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 120%, rgba(249,115,22,0.28), transparent 60%);
}
.cta-band .container { position: relative; z-index: 2; }
.cta-band p { margin-inline: auto; }

/* ---------- 12. Contact ---------- */
.contact-split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}
.info-list li { display: flex; gap: 1rem; padding: 1.2rem 0; border-bottom: 1px solid var(--light-gray); }
.section--dark .info-list li { border-color: rgba(201,201,201,0.16); }
.info-list svg { width: 20px; height: 20px; color: var(--orange); flex-shrink: 0; margin-top: 4px; }
.info-list strong {
  display: block;
  font-family: var(--font-head);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.25rem;
}

.map-placeholder {
  margin-top: 2rem;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  text-align: center;
  border: 1px dashed rgba(201,201,201,0.4);
  background: repeating-linear-gradient(45deg, rgba(201,201,201,0.06) 0 12px, transparent 12px 24px);
  color: var(--silver);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.form {
  background: var(--white);
  border: 1px solid var(--light-gray);
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border-radius: 2px;
  display: grid;
  gap: 1.1rem;
}
.section--dark .form { background: #191919; border-color: rgba(201,201,201,0.16); }
.field { display: grid; gap: 0.4rem; }
.field label { font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase; font-weight: 600; }
.field input, .field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  color: inherit;
  background: transparent;
  border: 1px solid var(--light-gray);
  border-radius: 2px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.section--dark .field input, .section--dark .field textarea { border-color: rgba(201,201,201,0.24); }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(249,115,22,0.16);
}
.field textarea { min-height: 140px; resize: vertical; }
.field .error { font-size: 0.78rem; color: #ff7a59; min-height: 1rem; }
.field.has-error input, .field.has-error textarea { border-color: #ff7a59; }
.form__status { font-size: 0.9rem; color: var(--orange); min-height: 1.2rem; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.1rem; }

/* ---------- 13. Footer ---------- */
.site-footer {
  background: var(--black);
  color: var(--off-white);
  padding-block: clamp(3.5rem, 6vw, 5rem) 2rem;
  border-top: 1px solid rgba(201,201,201,0.14);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(auto-fit, minmax(160px, 1fr));
  gap: 2.5rem;
}
.footer-grid h4 {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1.1rem;
}
.footer-grid li { margin-bottom: 0.6rem; }
.footer-grid a { color: var(--silver); font-size: 0.92rem; transition: color 0.25s var(--ease); }
.footer-grid a:hover { color: var(--orange); }
.footer-about p { color: var(--silver); font-size: 0.92rem; max-width: 34ch; }

.socials { display: flex; gap: 0.7rem; margin-top: 1.2rem; }
.socials a {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1px solid rgba(201,201,201,0.24);
  border-radius: 2px;
  color: var(--orange);
  transition: background 0.28s var(--ease), color 0.28s var(--ease), border-color 0.28s var(--ease), transform 0.28s var(--ease);
}
.socials a:hover { background: var(--orange); color: var(--white); border-color: var(--orange); transform: translateY(-3px); }
.socials svg { width: 18px; height: 18px; }

.newsletter { display: flex; gap: 0.5rem; margin-top: 1rem; flex-wrap: wrap; }
.newsletter input {
  flex: 1 1 180px;
  min-width: 0;
  padding: 0.8rem 0.9rem;
  background: transparent;
  border: 1px solid rgba(201,201,201,0.24);
  color: var(--off-white);
  border-radius: 2px;
  font-family: var(--font-body);
}
.newsletter input:focus { outline: none; border-color: var(--orange); }

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(201,201,201,0.14);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  font-size: 0.84rem;
  color: var(--silver);
}

/* ---------- 14. Back to top ---------- */
.to-top {
  position: fixed;
  right: 1.25rem; bottom: 1.25rem;
  width: 48px; height: 48px;
  display: grid; place-items: center;
  background: var(--orange);
  color: var(--white);
  border: none;
  border-radius: 2px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s var(--ease), background 0.3s var(--ease);
  z-index: 140;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--orange-dark); }
.to-top svg { width: 20px; height: 20px; }

/* ---------- 15. Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- 16. Responsive ---------- */
@media (max-width: 960px) {
  .nav {
    position: fixed;
    inset: 0 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--black);
    padding: 6rem 1.5rem 2.5rem;
    transform: translateY(-100%);
    transition: transform 0.45s var(--ease);
    border-bottom: 1px solid rgba(201,201,201,0.14);
    max-height: 100svh;
    overflow-y: auto;
  }
  .nav.is-open { transform: translateY(0); }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__list li { border-bottom: 1px solid rgba(201,201,201,0.1); }
  .nav__link { display: block; padding: 1rem 0; font-size: 1.05rem; }
  .nav .btn { margin-top: 1.5rem; }
  .nav-toggle { display: block; z-index: 160; }
}

@media (max-width: 640px) {
  .brand__name { font-size: 0.95rem; }
  .hero { min-height: 92svh; }
  .hero__actions .btn { flex: 1 1 100%; }
  .footer-grid { grid-template-columns: 1fr; }
}

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