/*--------------------------------------------------------------
  Dallatech — site styles
  Hand-written. No framework. Single stylesheet.
--------------------------------------------------------------*/

/* ---------------------------------------------------------
   Tokens
   --------------------------------------------------------- */
:root {
  color-scheme: dark;

  /* surfaces */
  --ink:      #0a0a0e;
  --ink-2:    #0f0f16;
  --ink-3:    #15151f;
  --line:     rgba(255, 255, 255, .09);
  --line-2:   rgba(255, 255, 255, .18);

  /* type */
  --paper:    #f3f0ea;
  --muted:    #9d9cab;
  --dim:      #6f6e7d;

  /* brand — change this block to reskin the whole page */
  --accent:       #ff5c35;   /* fills, glows, decorative marks */
  --accent-text:  #ff5c35;   /* small text on --ink; must clear 4.5:1 */
  --accent-on:    var(--ink);/* label colour on an --accent fill */
  --accent-rgb:   255, 92, 53;
  --accent-hover: #ff744f;
  --accent-2:     #7ee0c8;
  --accent-2-rgb: 126, 224, 200;

  /* geometry */
  --max:  1180px;
  --pad:  clamp(1.25rem, 4vw, 2.5rem);
  --r:    14px;
  --r-lg: 20px;

  /* families */
  --f-display: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --f-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --f-mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--f-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--f-display); font-weight: 500; line-height: 1.08; letter-spacing: -.02em; }
p  { margin: 0; }

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

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

/* film grain — sits above the page, ignores pointer events */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: .32;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10000;
  padding: .75rem 1.25rem;
  background: var(--accent);
  color: #fff;
  font: 500 .875rem/1 var(--f-mono);
}
.skip-link:focus { left: 0; }

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

.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); position: relative; }
.section + .section { padding-top: 0; }

/* eyebrow: mono label with a rule */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font: 500 .75rem/1 var(--f-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent-text);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
  opacity: .6;
}

.section-head { max-width: 44rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head h2 {
  margin-top: 1.25rem;
  font-size: clamp(2rem, 5vw, 3.25rem);
  text-wrap: balance;
}
.section-head p {
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  max-width: 46ch;
}

.lede { color: var(--muted); font-size: clamp(1.0625rem, 1.8vw, 1.25rem); }

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 100px;
  font: 500 .9375rem/1 var(--f-body);
  letter-spacing: -.01em;
  cursor: pointer;
  transition: transform .25s cubic-bezier(.2,.8,.3,1), background-color .25s, border-color .25s, color .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 15px; height: 15px; transition: transform .25s cubic-bezier(.2,.8,.3,1); }
.btn:hover svg { transform: translateX(3px); }

/* Dark label on the bright fill: white on any of these accents fails WCAG AA. */
.btn--primary { background: var(--accent); color: var(--accent-on); font-weight: 600; }
.btn--primary:hover { background: var(--accent-hover); }

.btn--ghost { border-color: var(--line-2); color: var(--paper); }
.btn--ghost:hover { border-color: var(--paper); background: rgba(255,255,255,.05); }

.btn--sm { padding: .65rem 1.15rem; font-size: .875rem; }

/* ---------------------------------------------------------
   Header
   --------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background-color .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: rgba(10, 10, 14, .78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 76px;
}

.brand { display: inline-flex; align-items: center; gap: .7rem; }
.brand__mark { width: 28px; height: 28px; flex: none; }
.brand__word {
  font-family: var(--f-display);
  font-size: 1.1875rem;
  font-weight: 600;
  letter-spacing: -.03em;
}
.brand__word span { color: var(--accent-text); }
.brand__mark .mark-dot { fill: var(--accent); }
.brand__mark .mark-bg { fill: var(--ink-3); }
.brand__mark .mark-d { fill: var(--paper); }

.nav ul { display: flex; align-items: center; gap: 2rem; }
.nav a {
  position: relative;
  font-size: .9375rem;
  color: var(--muted);
  transition: color .2s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s cubic-bezier(.2,.8,.3,1);
}
.nav a:hover { color: var(--paper); }
.nav a:hover::after { transform: scaleX(1); }

.header__cta { display: inline-flex; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  background: none;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  color: var(--paper);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  margin: 3.5px auto;
  background: currentColor;
  transition: transform .3s, opacity .2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: clamp(9rem, 18vw, 13rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
  overflow: hidden;
}

/* soft colour fields behind the headline */
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  opacity: .5;
}
.hero__glow--a {
  width: 46vw; height: 46vw;
  max-width: 620px; max-height: 620px;
  top: -12%; right: -8%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), .55), transparent 68%);
  animation: drift 22s ease-in-out infinite alternate;
}
.hero__glow--b {
  width: 38vw; height: 38vw;
  max-width: 520px; max-height: 520px;
  bottom: -18%; left: -10%;
  background: radial-gradient(circle, rgba(var(--accent-2-rgb), .32), transparent 68%);
  animation: drift 28s ease-in-out infinite alternate-reverse;
}
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(-4%, 6%, 0) scale(1.12); }
}

/* faint grid, fading out downward */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 25%, #000, transparent 75%);
          mask-image: radial-gradient(ellipse 90% 70% at 50% 25%, #000, transparent 75%);
}

.hero .wrap { position: relative; z-index: 1; }

.hero h1 {
  margin-top: 1.75rem;
  font-size: clamp(2.75rem, 8.5vw, 6rem);
  font-weight: 500;
  letter-spacing: -.04em;
  max-width: 15ch;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero__lede {
  margin-top: 1.75rem;
  max-width: 56ch;
  color: var(--muted);
  font-size: clamp(1.0625rem, 2vw, 1.3125rem);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .875rem;
  margin-top: 2.5rem;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2.5rem;
  margin-top: clamp(3.5rem, 7vw, 5.5rem);
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  font: 400 .8125rem/1.5 var(--f-mono);
  letter-spacing: .04em;
  color: var(--dim);
  text-transform: uppercase;
}
.hero__meta strong { color: var(--paper); font-weight: 500; }

/* ---------------------------------------------------------
   Stack marquee
   --------------------------------------------------------- */
.marquee {
  padding-block: 1.5rem;
  border-block: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: slide 46s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__group {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding-right: 3rem;
}
.marquee__group li {
  font: 400 .875rem/1 var(--f-mono);
  letter-spacing: .06em;
  color: var(--dim);
  white-space: nowrap;
}
.marquee__group li::before {
  content: "◆";
  margin-right: 3rem;
  color: var(--accent);
  opacity: .5;
  font-size: .5rem;
  vertical-align: middle;
}
@keyframes slide {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}

/* ---------------------------------------------------------
   Service cards
   --------------------------------------------------------- */
.grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  position: relative;
  padding: clamp(1.75rem, 3.5vw, 2.5rem);
  background: var(--ink);
  transition: background-color .35s;
  isolation: isolate;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  background: radial-gradient(70% 90% at 50% 0%, rgba(var(--accent-rgb), .13), transparent 70%);
  transition: opacity .4s;
}
.card:hover { background: var(--ink-2); }
.card:hover::before { opacity: 1; }

.card__num {
  font: 500 .75rem/1 var(--f-mono);
  letter-spacing: .1em;
  color: var(--dim);
  transition: color .3s;
}
.card:hover .card__num { color: var(--accent-text); }

.card h3 {
  margin-top: 1.5rem;
  font-size: 1.3125rem;
  letter-spacing: -.02em;
}
.card p {
  margin-top: .875rem;
  color: var(--muted);
  font-size: .9375rem;
  line-height: 1.7;
}

/* ---------------------------------------------------------
   Approach — numbered editorial rows
   --------------------------------------------------------- */
.approach { display: grid; gap: 0; }

.approach__row {
  display: grid;
  grid-template-columns: minmax(0, 6rem) minmax(0, 1fr) minmax(0, 1.35fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: start;
  padding-block: clamp(2rem, 4vw, 2.75rem);
  border-top: 1px solid var(--line);
}
.approach__row:last-child { border-bottom: 1px solid var(--line); }

.approach__num {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  line-height: 1;
  color: var(--line-2);
  transition: color .3s;
}
.approach__row:hover .approach__num { color: var(--accent-text); }

.approach__row h3 { font-size: clamp(1.25rem, 2.4vw, 1.625rem); }
.approach__row p { color: var(--muted); font-size: 1rem; line-height: 1.75; }

/* ---------------------------------------------------------
   Products
   --------------------------------------------------------- */
.products { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.product {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.75rem, 4vw, 2.75rem);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.product--feature {
  grid-column: 1 / -1;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(var(--accent-2-rgb), .11), transparent 55%),
    radial-gradient(100% 120% at 0% 100%, rgba(var(--accent-rgb), .10), transparent 55%),
    var(--ink-2);
}

.product__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .35rem .75rem;
  border: 1px solid var(--line-2);
  border-radius: 100px;
  font: 500 .6875rem/1 var(--f-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
.tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(var(--accent-2-rgb), .18);
}

.product h3 {
  margin-top: 1.5rem;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}
.product__sub {
  margin-top: .5rem;
  font: 400 .875rem/1.5 var(--f-mono);
  letter-spacing: .04em;
  color: var(--accent-text);
}
.product p.product__body {
  margin-top: 1.25rem;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.7;
}

.product__points {
  display: grid;
  gap: .75rem;
  margin-top: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.product__points li {
  display: flex;
  gap: .7rem;
  font-size: .9375rem;
  color: var(--muted);
  line-height: 1.55;
}
.product__points li::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  margin-top: .55rem;
  border-radius: 2px;
  background: var(--accent);
  transform: rotate(45deg);
}

/* full-width strip: label block on the left, copy on the right */
.product--soon {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
  gap: 1.5rem clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding-block: clamp(1.75rem, 3.5vw, 2.25rem);
  border-style: dashed;
  background: transparent;
}
.product--soon .tag::before { background: var(--dim); box-shadow: none; }
.product--soon h3 { margin-top: 1rem; font-size: clamp(1.375rem, 2.5vw, 1.75rem); }
.product--soon p { margin: 0; color: var(--muted); font-size: .9375rem; line-height: 1.7; max-width: 56ch; }

/* ---------------------------------------------------------
   Engagement
   --------------------------------------------------------- */
.engage { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.engage__item {
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--ink-2);
  transition: border-color .3s, transform .3s cubic-bezier(.2,.8,.3,1);
}
.engage__item:hover { border-color: var(--line-2); transform: translateY(-3px); }

.engage__item h3 { font-size: 1.1875rem; }
.engage__item p { margin-top: .75rem; color: var(--muted); font-size: .9375rem; line-height: 1.7; }
.engage__item .tag { align-self: flex-start; margin-bottom: 1.25rem; }
.engage__item .tag::before { background: var(--accent); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .18); }

/* ---------------------------------------------------------
   Contact
   --------------------------------------------------------- */
.contact {
  position: relative;
  padding-block: clamp(4.5rem, 9vw, 7.5rem);
  border-top: 1px solid var(--line);
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute;
  width: 70vw;
  height: 70vw;
  max-width: 900px;
  max-height: 900px;
  left: 50%;
  bottom: -55%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), .20), transparent 65%);
  filter: blur(80px);
  pointer-events: none;
}
.contact .wrap { position: relative; z-index: 1; text-align: center; }

.contact h2 {
  margin-top: 1.5rem;
  font-size: clamp(2.25rem, 6vw, 4rem);
  max-width: 18ch;
  margin-inline: auto;
  text-wrap: balance;
}
.contact p {
  margin-top: 1.5rem;
  margin-inline: auto;
  max-width: 52ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.125rem);
}

.mail-link {
  display: inline-block;
  margin-top: 2.5rem;
  font-family: var(--f-display);
  font-size: clamp(1.25rem, 4vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -.03em;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 1px;
  transition: background-size .35s cubic-bezier(.2,.8,.3,1), color .3s;
  overflow-wrap: anywhere;
}
.mail-link:hover { color: var(--accent-text); background-size: 100% 2px; }

.contact__note {
  margin-top: 2rem;
  font: 400 .8125rem/1.6 var(--f-mono);
  letter-spacing: .04em;
  color: var(--dim);
  text-transform: uppercase;
}

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2.5rem;
  background: var(--ink-2);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
}
.site-footer p,
.site-footer a {
  font: 400 .8125rem/1.6 var(--f-mono);
  letter-spacing: .04em;
  color: var(--dim);
}
.site-footer a:hover { color: var(--paper); }
.site-footer nav ul { display: flex; flex-wrap: wrap; gap: 1.5rem; }

/* ---------------------------------------------------------
   Harvester decoy
   --------------------------------------------------------- */
/* Pulled out of the flow rather than display:none — the point is that a
   scraper reading raw HTML still finds it. Hidden from assistive tech and
   unreachable by keyboard, so nobody real ever meets it. */
.decoy {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------------------------------------------------------
   Scroll reveal
   --------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s cubic-bezier(.2,.8,.3,1), transform .7s cubic-bezier(.2,.8,.3,1);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------------------------------------------------------
   Responsive
   --------------------------------------------------------- */
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .header__cta { display: none; }

  .nav {
    position: fixed;
    inset: 76px 0 auto 0;
    background: rgba(10, 10, 14, .97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    padding: 1.5rem var(--pad) 2rem;
    clip-path: inset(0 0 100% 0);
    transition: clip-path .4s cubic-bezier(.2,.8,.3,1);
  }
  .nav.is-open { clip-path: inset(0 0 0 0); }

  .nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .nav li { border-bottom: 1px solid var(--line); }
  .nav li:last-child { border-bottom: 0; }
  .nav a { display: block; padding: 1rem 0; font-size: 1.125rem; color: var(--paper); }
  .nav a::after { display: none; }

  .product--soon { grid-template-columns: 1fr; align-items: start; }
  .approach__row { grid-template-columns: 1fr; gap: .875rem; }
  .approach__num { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}