/* Al Sahrawi Oil Field Equipment — stylesheet
   Palette keyed to the brand logo: wordmark navy + derrick red + pipe-clamp steel grey,
   with a safety-amber focus cue. See CLAUDE-DESIGN.md §6. */

:root {
  --bg: #F4F6F9;
  --bg-deep: #0E1D38;        /* deeper navy for hero/footer wells */
  --surface: #FFFFFF;
  --surface-2: #EEF1F6;
  --text: #14274A;
  --muted: #5C6B82;
  --primary: #16305B;        /* brand navy (wordmark) */
  --primary-700: #102447;
  --secondary: #9AA3B0;      /* brushed-steel grey */
  --accent: #E32118;         /* derrick red */
  --accent-700: #C11910;
  --border: #D7DEE8;
  --border-strong: #C2CCDA;
  --focus: #F2A900;          /* safety amber */
  --steel-1: #E7ECF2;
  --steel-2: #D3DBE6;

  --maxw: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(16,36,71,.06), 0 1px 3px rgba(16,36,71,.05);
  --shadow-md: 0 8px 24px rgba(16,36,71,.08), 0 2px 6px rgba(16,36,71,.05);
  --shadow-lg: 0 24px 60px rgba(16,36,71,.16), 0 6px 18px rgba(16,36,71,.08);

  --ff-display: 'Saira', system-ui, sans-serif;
  --ff-body: 'Source Sans 3', system-ui, sans-serif;
  --ff-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--ff-body);
  color: var(--text);
  background: var(--bg);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--ff-display);
  color: var(--primary);
  line-height: 1.04;
  letter-spacing: -.01em;
  margin: 0;
  font-weight: 700;
}

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

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

/* ---------- layout helpers ---------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(56px, 9vw, 116px); }
.section--tight { padding-block: clamp(40px, 6vw, 72px); }

.eyebrow {
  font-family: var(--ff-mono);
  font-size: 12.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--accent);
  display: inline-block;
}
.eyebrow--light { color: #FF8A82; }
.eyebrow--light::before { background: #FF8A82; }

.section-title {
  font-size: clamp(2rem, 4.4vw, 3.25rem);
  max-width: 18ch;
  text-wrap: balance;
}
.section-intro {
  margin: 18px 0 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
}

/* ---------- buttons ---------- */
.btn {
  --bg-btn: var(--primary);
  --fg-btn: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 26px;
  border-radius: 8px;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: .01em;
  background: var(--bg-btn);
  color: var(--fg-btn);
  border: 1.5px solid var(--bg-btn);
  cursor: pointer;
  transition: transform .18s var(--ease), box-shadow .25s var(--ease), background .2s, border-color .2s, color .2s;
  white-space: nowrap;
}
.btn svg { width: 19px; height: 19px; flex: none; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

.btn--accent { --bg-btn: var(--accent); --fg-btn: #fff; border-color: var(--accent); }
.btn--accent:hover { background: var(--accent-700); border-color: var(--accent-700); }

.btn--ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--border-strong);
}
.btn--ghost:hover { background: var(--surface); border-color: var(--primary); }

.btn--on-dark {
  background: rgba(255,255,255,.08);
  color: #fff;
  border-color: rgba(255,255,255,.32);
  backdrop-filter: blur(4px);
}
.btn--on-dark:hover { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.6); }

.btn--whatsapp { --bg-btn: #1FA855; border-color:#1FA855; color:#fff; }
.btn--whatsapp:hover { background:#178545; border-color:#178545; }

.btn--block { width: 100%; }
.btn--lg { min-height: 56px; padding: 0 32px; font-size: 1.08rem; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s var(--ease), border-color .3s, background .3s;
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 84px;
  transition: height .3s var(--ease);
}
.is-scrolled .header-inner { height: 70px; }

.brand { display: flex; align-items: center; gap: 14px; flex: none; }
.brand img { height: 52px; width: auto; transition: height .3s var(--ease); }
.is-scrolled .brand img { height: 44px; }

.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav [data-mobile-only] { display: none; }
.main-nav a {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 1rem;
  color: var(--text);
  padding: 9px 14px;
  border-radius: 6px;
  position: relative;
  transition: color .2s, background .2s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after { transform: scaleX(1); }

.header-cta { display: flex; align-items: center; gap: 10px; flex: none; }
.header-cta .btn { min-height: 44px; padding: 0 18px; font-size: .98rem; }

.nav-toggle {
  display: none;
  width: 46px; height: 46px;
  border: 1.5px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  display: block;
  width: 20px; height: 2px;
  background: var(--primary);
  position: relative;
  transition: transform .25s var(--ease), opacity .2s;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  background: var(--bg-deep);
  color: #fff;
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center 38%; }
.hero__scrim {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(180deg, rgba(8,18,38,.62) 0%, rgba(8,18,38,.34) 38%, rgba(8,18,38,.72) 100%),
    linear-gradient(96deg, rgba(10,22,46,.94) 0%, rgba(10,22,46,.72) 42%, rgba(10,22,46,.16) 78%);
}
.hero__inner {
  position: relative;
  z-index: 2;
  padding-block: clamp(84px, 16vw, 168px);
  max-width: 50rem;
}
.hero h1 {
  color: #fff;
  font-size: clamp(2.5rem, 6.4vw, 5.1rem);
  letter-spacing: -.02em;
  text-wrap: balance;
}
.hero h1 .accent { color: #fff; position: relative; }
.hero__sub {
  margin: 26px 0 0;
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.55;
  color: rgba(255,255,255,.86);
  max-width: 46ch;
  text-wrap: pretty;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.hero__meta {
  margin-top: 46px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  font-family: var(--ff-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.72);
}
.hero__meta span { display: inline-flex; align-items: center; gap: 9px; }
.hero__meta span::before { content:""; width:7px; height:7px; background: var(--accent); border-radius: 50%; flex:none; }

/* ---------- capability band ---------- */
.band {
  background: var(--primary);
  color: #fff;
  position: relative;
}
.band::before {
  content:""; position:absolute; left:0; top:0; right:0; height:3px;
  background: linear-gradient(90deg, var(--accent) 0 28%, var(--secondary) 28% 100%);
}
.band__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.12);
}
.band__cell { background: var(--primary); padding: 30px clamp(16px,2.4vw,30px); }
.band__num {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  color: #fff;
  line-height: 1;
}
.band__num small { color: var(--secondary); font-size: .5em; font-weight:600; }
.band__lbl {
  margin-top: 10px;
  font-family: var(--ff-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.66);
}

/* ---------- about ---------- */
.about__grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(36px, 5vw, 76px);
  align-items: center;
}
.about__media { position: relative; }
.about__media .frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  aspect-ratio: 4 / 3;
}
.about__media img { width:100%; height:100%; object-fit: cover; }
.about__badge {
  position: absolute;
  left: -22px; bottom: -26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 18px 22px;
  max-width: 230px;
}
.about__badge .k {
  font-family: var(--ff-mono); font-size: 11px; letter-spacing:.16em;
  text-transform: uppercase; color: var(--accent);
}
.about__badge .v { font-family: var(--ff-display); font-weight:600; color: var(--primary); font-size: 1.05rem; line-height:1.25; margin-top:6px; }

.about__body p { color: var(--muted); margin: 0 0 18px; max-width: 52ch; }
.about__body p strong { color: var(--text); font-weight: 600; }
.about__list { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 12px; }
.about__list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text); }
.about__list li svg { width: 22px; height: 22px; color: var(--accent); flex: none; margin-top: 2px; }

/* ---------- products ---------- */
.products { background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%); }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: clamp(36px, 5vw, 60px);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 22px;
}
.product-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.product-card::before {
  content:""; position:absolute; left:0; right:0; top:0; height:3px;
  background: var(--accent);
  transform: scaleX(0); transform-origin:left;
  transition: transform .35s var(--ease);
  z-index: 3;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--border-strong); }
.product-card:hover::before { transform: scaleX(1); }
.product-card__media { position: relative; aspect-ratio: 16 / 11; overflow: hidden; background: var(--surface-2); }
.product-card__media img { width:100%; height:100%; object-fit: cover; transition: transform .5s var(--ease); }
.product-card:hover .product-card__media img { transform: scale(1.05); }
.product-card__icon {
  position: absolute;
  left: 16px; bottom: -26px;
  width: 56px; height: 56px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: grid; place-items: center;
  box-shadow: var(--shadow-md);
  z-index: 2;
}
.product-card__icon svg { width: 34px; height: 34px; color: var(--primary); }
.product-card:hover .product-card__icon svg { color: var(--accent); }
.product-card__body { padding: 38px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.product-card__body h3 { font-size: 1.4rem; }
.product-card__tag {
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing:.16em;
  text-transform: uppercase; color: var(--secondary); margin: 0 0 8px;
}
.product-card__body p { color: var(--muted); font-size: .98rem; margin: 10px 0 0; flex: 1; }
.product-card__link {
  margin-top: 20px;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--ff-display); font-weight: 600; color: var(--primary);
  font-size: .98rem;
}
.product-card__link svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.product-card:hover .product-card__link { color: var(--accent); }
.product-card:hover .product-card__link svg { transform: translateX(4px); }

/* ---------- industries ---------- */
.industries { background: var(--bg-deep); color: #fff; position: relative; }
.industries__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: clamp(32px, 4vw, 52px);
}
.ind-card {
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  padding: 26px 24px;
  background: rgba(255,255,255,.035);
  transition: background .25s var(--ease), border-color .25s, transform .25s var(--ease);
}
.ind-card:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.34); transform: translateY(-4px); }
.ind-card__no { font-family: var(--ff-mono); font-size: 12px; color: var(--accent); letter-spacing:.12em; }
.ind-card h3 { color: #fff; font-size: 1.34rem; margin: 14px 0 8px; }
.ind-card p { color: rgba(255,255,255,.66); font-size: .95rem; margin: 0; }

/* ---------- stock gallery ---------- */
.stock__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 1fr;
  gap: 16px;
  margin-top: clamp(32px, 4vw, 52px);
}
.stock__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-2);
  min-height: 200px;
}
.stock__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.stock__item:hover img { transform: scale(1.06); }
.stock__item.is-wide { grid-column: span 2; }
.stock__item.is-tall { grid-row: span 2; }
.stock__cap {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 26px 18px 14px;
  background: linear-gradient(180deg, transparent, rgba(8,18,38,.82));
  color: #fff;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ---------- contact / RFQ ---------- */
.contact { background: var(--surface); }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.contact__info .lead { color: var(--muted); max-width: 44ch; margin: 18px 0 30px; }

.contact-actions { display: grid; gap: 12px; margin-bottom: 30px; }
.contact-row {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: border-color .2s, transform .2s var(--ease), box-shadow .2s;
}
.contact-row:hover { border-color: var(--border-strong); transform: translateX(3px); box-shadow: var(--shadow-sm); }
.contact-row__ic {
  width: 44px; height: 44px; border-radius: 10px; flex: none;
  display: grid; place-items: center;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--primary);
}
.contact-row__ic svg { width: 21px; height: 21px; }
.contact-row .k { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing:.16em; text-transform: uppercase; color: var(--muted); }
.contact-row .v { font-family: var(--ff-display); font-weight: 600; color: var(--primary); font-size: 1.08rem; line-height: 1.2; }

.map-ph {
  position: relative;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(45deg, var(--steel-1) 0 14px, var(--steel-2) 14px 28px);
  min-height: 168px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  overflow: hidden;
}
.map-ph__inner { position: relative; z-index: 1; }
.map-ph svg { width: 30px; height: 30px; color: var(--primary); margin: 0 auto 10px; }
.map-ph .t { font-family: var(--ff-display); font-weight: 600; color: var(--primary); }
.map-ph .s { font-family: var(--ff-mono); font-size: 11px; letter-spacing:.1em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }

/* form */
.rfq {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: clamp(24px, 3.4vw, 40px);
}
.rfq__head h3 { font-size: 1.6rem; }
.rfq__head p { color: var(--muted); margin: 8px 0 24px; font-size: .98rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.col-2 { grid-column: span 2; }
.field label {
  font-family: var(--ff-mono); font-size: 11px; letter-spacing:.12em;
  text-transform: uppercase; color: var(--text); font-weight: 500;
}
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  font-family: var(--ff-body);
  font-size: 1rem;
  color: var(--text);
  padding: 13px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  transition: border-color .18s, box-shadow .18s, background .18s;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 104px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 4px rgba(22,48,91,.1);
}
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--accent); }
.field .err { color: var(--accent-700); font-size: 12.5px; font-family: var(--ff-body); min-height: 0; display: none; }
.field.has-error .err { display: block; }
.rfq__footer { margin-top: 22px; display: flex; flex-direction: column; gap: 14px; }
.rfq__note { font-size: 12.5px; color: var(--muted); }
.form-success {
  display: none;
  text-align: center;
  padding: 24px 8px;
}
.form-success.is-on { display: block; }
.form-success .tick {
  width: 64px; height: 64px; margin: 0 auto 18px;
  border-radius: 50%; background: #E7F6ED; color: #1FA855;
  display: grid; place-items: center;
}
.form-success .tick svg { width: 32px; height: 32px; }
.form-success h3 { font-size: 1.5rem; }
.form-success p { color: var(--muted); margin: 10px auto 0; max-width: 38ch; }
.is-sent .form-grid, .is-sent .rfq__footer, .is-sent .rfq__head { display: none; }

/* ---------- footer ---------- */
.site-footer { background: var(--bg-deep); color: rgba(255,255,255,.7); }
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  padding-block: clamp(48px, 6vw, 80px) 40px;
}
.footer-brand img { height: 64px; width: auto; margin-bottom: 20px; filter: brightness(0) invert(1); opacity:.96; }
.footer-brand p { max-width: 38ch; font-size: .96rem; line-height: 1.6; }
.footer-col h4 {
  color: #fff; font-family: var(--ff-mono); font-size: 11.5px; letter-spacing:.16em;
  text-transform: uppercase; font-weight: 500; margin: 6px 0 18px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.footer-col a, .footer-col li { font-size: .98rem; color: rgba(255,255,255,.7); transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-col .ic-row { display: flex; gap: 11px; align-items: flex-start; }
.footer-col .ic-row svg { width: 17px; height: 17px; color: var(--secondary); flex: none; margin-top: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-block: 22px 30px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: .86rem;
  color: rgba(255,255,255,.5);
}
.footer-bottom a:hover { color: #fff; }

/* ---------- mobile sticky action bar ---------- */
.mobile-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 70;
  display: none;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 0;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  box-shadow: 0 -6px 20px rgba(16,36,71,.1);
  padding-bottom: env(safe-area-inset-bottom);
}
.mobile-bar a {
  min-height: 58px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: .82rem;
  color: var(--primary);
  border-right: 1px solid var(--border);
}
.mobile-bar a:last-child { border-right: 0; }
.mobile-bar a svg { width: 20px; height: 20px; }
.mobile-bar a.is-accent { background: var(--accent); color: #fff; }
.mobile-bar a.is-wa { color: #1FA855; }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .band__grid { grid-template-columns: repeat(2, 1fr); }
  .stock__grid { grid-template-columns: repeat(2, 1fr); }
  .stock__item.is-tall { grid-row: span 1; }
}
@media (max-width: 900px) {
  .about__grid { grid-template-columns: 1fr; }
  .about__media { max-width: 560px; }
  .about__badge { left: auto; right: 16px; }
  .contact__grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}
@media (max-width: 760px) {
  .main-nav, .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .mobile-bar { display: grid; }
  body { padding-bottom: 60px; }

  .main-nav.is-open {
    display: flex;
    position: fixed;
    top: 70px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 14px var(--gutter) 22px;
    margin: 0;
    z-index: 55;
  }
  .main-nav.is-open a { padding: 14px 8px; font-size: 1.1rem; border-bottom: 1px solid var(--border); }
  .main-nav.is-open a::after { display: none; }
  .main-nav.is-open [data-mobile-only] { display: flex; border-bottom: 0; }
  .main-nav.is-open .btn { margin-top: 12px; }
}
@media (max-width: 560px) {
  .form-grid { grid-template-columns: 1fr; }
  .field.col-2 { grid-column: span 1; }
  .band__grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .hero__cta .btn { flex: 1 1 auto; }
}
@media (max-width: 420px) {
  .stock__grid { grid-template-columns: 1fr; }
  .stock__item.is-wide { grid-column: span 1; }
}