/* Hulool CoreTech — brand tokens come from the identity kit (Source file/, Used fonts/) */

@font-face {
  font-family: "Hacen Maghreb";
  src: url("assets/fonts/HacenMaghreb.ttf") format("truetype");
  font-display: swap;
}
@font-face {
  font-family: "Somar Expanded";
  src: url("assets/fonts/SomarSans-LightExpanded.otf") format("opentype");
  font-weight: 300;
  font-display: swap;
}
@font-face {
  font-family: "Somar Expanded";
  src: url("assets/fonts/SomarSans-BoldExpanded.otf") format("opentype");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Somar Expanded";
  src: url("assets/fonts/SomarSans-BlackExpanded.otf") format("opentype");
  font-weight: 900;
  font-display: swap;
}

:root {
  /* palette */
  --wine: #73364a;          /* logo colour */
  --wine-deep: #3a1424;
  --night: #1a0810;         /* hero / rack ground */
  --signal: #f2729c;        /* the glowing nodes on the brand cover */
  --porcelain: #f6f3f5;     /* cool, pink-tinted white — not cream */
  --slate: #5d6b85;         /* tagline colour */
  --ink: #23161d;

  --on-dark: #f6eef2;
  --on-dark-dim: #c9b3bd;
  --hair-dark: rgb(246 238 242 / 0.14);
  --hair-light: rgb(115 54 74 / 0.16);

  /* type */
  --display-ar: "Hacen Maghreb", "IBM Plex Sans Arabic", sans-serif;
  --display-en: "Somar Expanded", "IBM Plex Sans", sans-serif;
  --body: "IBM Plex Sans Arabic", "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --step--1: 0.85rem;
  --step-0: 1.0625rem;
  --step-1: 1.3rem;
  --step-2: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem);
  --step-3: clamp(2.6rem, 1.6rem + 5vw, 5.6rem);

  --radius: 10px;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1200px;
}

html:lang(en) {
  --body: "IBM Plex Sans", "IBM Plex Sans Arabic", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--ink);
  background: var(--porcelain);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
a { color: inherit; }

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

.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  inset-inline-start: 12px;
  top: -60px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--signal);
  color: var(--night);
  border-radius: 6px;
}
.skip:focus { top: 12px; }

/* ---------- shared pieces ---------- */

.eyebrow {
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--signal);
  margin-block-end: 14px;
}
html:lang(en) .eyebrow { letter-spacing: 0.08em; }
.eyebrow-wine { color: var(--wine); }

.section-head h2,
.contact-copy h2 {
  font-family: var(--display-ar);
  font-weight: 400;
  font-size: var(--step-2);
  line-height: 1.35;
  max-width: 22ch;
}
html:lang(en) .section-head h2,
html:lang(en) .contact-copy h2 {
  font-family: var(--display-en);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.section-lede {
  margin-block-start: 16px;
  max-width: 56ch;
  color: var(--slate);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font: 600 var(--step-0) / 1 var(--body);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}
.btn:active { transform: translateY(1px); }
.btn-signal { background: var(--signal); color: var(--night); }
.btn-signal:hover { background: #ff8db2; }
.btn-ghost { border-color: var(--hair-dark); color: var(--on-dark); }
.btn-ghost:hover { border-color: var(--on-dark-dim); }
.btn-sm { min-height: 40px; padding: 0 16px; font-size: 0.95rem; }
.btn-block { width: 100%; }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgb(26 8 16 / 0.88);
  backdrop-filter: blur(10px);
  border-block-end: 1px solid var(--hair-dark);
}
.header-row {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 68px;
}
.brand img { width: 168px; height: auto; }
.nav {
  display: flex;
  gap: 28px;
  margin-inline-start: auto;
}
.nav a {
  color: var(--on-dark-dim);
  text-decoration: none;
  font-size: 0.98rem;
}
.nav a:hover { color: var(--on-dark); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.lang {
  background: none;
  border: 0;
  color: var(--on-dark-dim);
  font: 500 0.92rem var(--body);
  cursor: pointer;
  padding: 8px 6px;
}
.lang:hover { color: var(--on-dark); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  color: var(--on-dark);
  background:
    radial-gradient(55% 60% at 22% 70%, rgb(115 54 74 / 0.55), transparent 70%),
    radial-gradient(60% 60% at 85% 0%, rgb(58 20 36 / 0.9), transparent 70%),
    var(--night);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 40px;
  min-height: min(88vh, 760px);
  padding-block: 72px 88px;
}
.hero-title {
  font-family: var(--display-ar);
  font-weight: 400;
  font-size: var(--step-3);
  line-height: 1.25;
}
.hero-title .line { display: block; }
@media (min-width: 961px) { .hero-title .line { white-space: nowrap; } }
.hero-title .line-1 { color: var(--signal); }
html:lang(en) .hero-title {
  font-family: var(--display-en);
  font-weight: 900;
  font-size: clamp(2.1rem, 1.2rem + 3.4vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}
.hero-lede {
  margin-block-start: 28px;
  max-width: 44ch;
  color: var(--on-dark-dim);
  font-size: var(--step-1);
  line-height: 1.65;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-block-start: 36px; }

.hero-signal {
  position: relative;
  display: grid;
  place-items: end center;
  aspect-ratio: 600 / 420;
}
.hero-signal .arcs {
  position: absolute;
  inset: 0;
  width: 100%;
  height: auto;
}
.arc {
  fill: none;
  stroke: var(--signal);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  opacity: 0.55;
  animation: draw 1.4s cubic-bezier(.2, .7, .2, 1) forwards;
}
.arc.a2 { animation-delay: 0.35s; opacity: 0.7; }
.arc.a3 { animation-delay: 0.6s; opacity: 0.45; }
.arc.a4 { animation-delay: 0.85s; opacity: 0.25; stroke-dasharray: 4 10; stroke-dashoffset: 0; animation-name: fade; }
.node {
  fill: var(--signal);
  opacity: 0;
  filter: drop-shadow(0 0 6px var(--signal));
  animation: fade 0.6s ease forwards, pulse 3.6s ease-in-out 2s infinite;
}
.n2 { animation-delay: 1.3s, 2.2s; }
.n3 { animation-delay: 1.5s, 3s; }
.n4 { animation-delay: 1.7s, 2.6s; }
.n5 { animation-delay: 1.9s, 3.4s; }
.hero-signal .mark {
  position: relative;
  width: 50%;
  margin-block-end: 1%;
  filter: brightness(0) invert(1) drop-shadow(0 0 28px rgb(242 114 156 / 0.55));
  opacity: 0;
  animation: rise 0.9s ease 0.1s forwards;
}

.hero-title .line, .hero-lede, .hero-cta, .hero .eyebrow {
  opacity: 0;
  animation: rise 0.8s cubic-bezier(.2, .7, .2, 1) forwards;
}
.hero .eyebrow { animation-delay: 0.9s; }
.hero-title .line-1 { animation-delay: 1.05s; }
.hero-title .line-2 { animation-delay: 1.2s; }
.hero-lede { animation-delay: 1.4s; }
.hero-cta { animation-delay: 1.55s; }

@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
@keyframes pulse { 50% { opacity: 0.35; } }

/* ---------- rack (signature) ---------- */

.rack-section {
  background: linear-gradient(var(--night), #12060b);
  color: var(--on-dark);
  padding-block: 112px;
}
.rack-section .section-lede { color: var(--on-dark-dim); }

.rack-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
  margin-block-start: 56px;
}

.rack {
  display: grid;
  grid-template-columns: 22px 1fr 22px;
  padding: 18px 14px;
  border-radius: 14px;
  background: linear-gradient(180deg, #2a1620, #1c0e15);
  border: 1px solid #3e2431;
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.06), 0 30px 60px -30px rgb(0 0 0 / 0.8);
}
.rack-rail {
  background-image: radial-gradient(circle, #0c0408 2.2px, transparent 2.6px);
  background-size: 22px 16px;
  background-position: center 4px;
  background-color: #33202a;
  border-radius: 4px;
}
.rack-units {
  list-style: none;
  margin: 0;
  padding: 0 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.zone-label {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--on-dark-dim);
  padding: 14px 4px 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.zone-label:first-child { padding-block-start: 2px; }
.zone-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--hair-dark);
}

.u-face {
  width: 100%;
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 14px;
  min-height: 56px;
  padding: 0 14px;
  border-radius: 6px;
  border: 1px solid #452a37;
  background: linear-gradient(180deg, #3b2230, #2c1823);
  color: var(--on-dark);
  font: inherit;
  text-align: start;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s, transform 0.2s;
}
.u-face:hover { border-color: #6d4256; transform: translateX(0); }
.u[aria-current="true"] .u-face,
.u-face[aria-expanded="true"] {
  border-color: var(--signal);
  background: linear-gradient(180deg, #4a2537, #331a26);
}
.u-num {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--on-dark-dim);
  direction: ltr;
}
.u-ports {
  display: grid;
  grid-template-columns: repeat(6, 9px);
  grid-template-rows: repeat(2, 7px);
  gap: 3px;
  direction: ltr;
}
.u-ports i {
  background: #0d0509;
  border-radius: 1.5px;
  box-shadow: inset 0 0 0 1px #4d3240;
}
.u-ports i.on { box-shadow: inset 0 0 0 1px var(--signal); }
.u[data-kind="app"] .u-ports {
  grid-template-columns: repeat(7, 4px);
  grid-template-rows: 18px;
  gap: 4px;
}
.u[data-kind="app"] .u-ports i { border-radius: 2px; box-shadow: none; background: #170a10; }
.u[data-kind="power"] .u-ports {
  grid-template-columns: repeat(4, 12px);
  grid-template-rows: 12px;
  gap: 6px;
}
.u[data-kind="power"] .u-ports i { border-radius: 50%; }

.u-name {
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.35;
}
.u-leds { display: flex; gap: 6px; direction: ltr; }
.u-leds b {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4b2f3c;
}
.u-leds b.live {
  background: var(--signal);
  box-shadow: 0 0 6px var(--signal);
  animation: blink var(--blink, 2.4s) steps(1, end) infinite;
}
.u-leds b.ok { background: #8fc6a7; box-shadow: 0 0 5px #8fc6a7; }
@keyframes blink { 50% { opacity: 0.25; } }

.u-detail { display: none; }

.rack-panel {
  position: sticky;
  top: 96px;
  padding: 32px;
  border-radius: 14px;
  border: 1px solid var(--hair-dark);
  background: rgb(246 238 242 / 0.03);
  min-height: 360px;
}
.panel-code {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--signal);
  direction: ltr;
  text-align: start;
}
.panel-title {
  margin-block: 10px 14px;
  font-family: var(--display-ar);
  font-weight: 400;
  font-size: 1.9rem;
  line-height: 1.3;
}
html:lang(en) .panel-title {
  font-family: var(--display-en);
  font-weight: 700;
  font-size: 1.5rem;
}
.panel-summary { color: var(--on-dark-dim); }
.panel-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  border-block-start: 1px solid var(--hair-dark);
}
.panel-list li {
  padding-block: 12px;
  border-block-end: 1px solid var(--hair-dark);
  display: flex;
  gap: 12px;
}
.panel-list li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin-block-start: 0.7em;
  border-radius: 50%;
  background: var(--signal);
}
.panel-in { animation: rise 0.35s ease both; }

/* ---------- work ---------- */

.work { padding-block: 112px 0; }
.projects {
  list-style: none;
  padding: 0;
  margin: 56px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.project {
  --pad: 28px;
  display: flex;
  flex-direction: column;
  padding: var(--pad);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--hair-light);
  border-radius: 14px;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}
.project:hover {
  border-color: rgb(115 54 74 / 0.4);
  box-shadow: 0 18px 40px -28px rgb(58 20 36 / 0.45);
  transform: translateY(-2px);
}
.project-photo {
  margin: calc(var(--pad) * -1) calc(var(--pad) * -1) 22px;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--wine-deep);
}
.project-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(.2, .7, .2, 1);
}
.project:hover .project-photo img { transform: scale(1.04); }

.handover-photo { margin: 32px 0 0; }
.handover-photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 14px;
}
.handover-photo figcaption {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-block-start: 12px;
  font-size: 0.9rem;
  color: var(--slate);
}

.project-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.project-tech {
  font: 500 0.82rem var(--mono);
  letter-spacing: 0.08em;
  color: var(--wine);
  padding: 5px 10px;
  border: 1px solid rgb(115 54 74 / 0.35);
  border-radius: 6px;
}
.project-layer { font-size: 0.82rem; color: var(--slate); }
html:lang(en) .project-layer { font: 0.74rem var(--mono); letter-spacing: 0.08em; }
.project h3 {
  margin-block: 22px 10px;
  font-family: var(--display-ar);
  font-weight: 400;
  font-size: 1.55rem;
  line-height: 1.35;
  color: var(--wine-deep);
}
html:lang(en) .project h3 {
  font-family: var(--display-en);
  font-weight: 700;
  font-size: 1.25rem;
}
.project p { color: var(--slate); margin-block-end: 22px; }
.project-scope {
  list-style: none;
  padding: 18px 0 0;
  margin: auto 0 0;
  border-block-start: 1px dashed var(--hair-light);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.project-scope li {
  font-size: 0.88rem;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgb(115 54 74 / 0.07);
  color: var(--wine-deep);
}

.js .projects .project {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.7s cubic-bezier(.2, .7, .2, 1), border-color 0.25s, box-shadow 0.25s;
  transition-delay: calc(var(--i, 0) * 110ms + 100ms), calc(var(--i, 0) * 110ms + 100ms), 0s, 0s;
}
.js .projects.in .project { opacity: 1; transform: none; }
.js .projects.in .project:hover { transform: translateY(-2px); transition-delay: 0s; }

@media (max-width: 760px) {
  .projects { grid-template-columns: 1fr; }
  .project { --pad: 22px; }
  .work { padding-block-start: 80px; }
}

/* ---------- process ---------- */

.process { padding-block: 112px; }
.steps {
  list-style: none;
  padding: 0;
  margin: 56px 0 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 28px;
  position: relative;
}
.steps::before {
  content: "";
  position: absolute;
  inset-inline-start: 18px;
  inset-inline-end: calc((100% - 4 * 28px) / 5 - 18px);
  top: 18px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--wine) 0 10px, transparent 10px 16px);
  opacity: 0.4;
}
.step { position: relative; }
.step-n {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--porcelain);
  border: 2px solid var(--wine);
  color: var(--wine);
  font: 500 0.95rem var(--mono);
  position: relative;
}
.step h3 {
  margin-block: 20px 8px;
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--wine-deep);
}
.step p { color: var(--slate); font-size: 0.98rem; }

/* ---------- handover ---------- */

.handover {
  padding-block: 0 112px;
}
.handover-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  padding-block-start: 96px;
  background: linear-gradient(var(--hair-light), var(--hair-light)) center top / calc(100% - 2 * var(--gutter)) 1px no-repeat;
}
.tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.tag {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 18px;
  padding: 16px 20px;
  background: #fff;
  border: 1px solid var(--hair-light);
  border-radius: var(--radius);
  position: relative;
}
.tag::before {
  /* the punched hole of a cable label */
  content: "";
  position: absolute;
  inset-inline-end: 14px;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--porcelain);
  box-shadow: inset 0 0 0 1px var(--hair-light);
}
.tag-code {
  font: 500 0.78rem var(--mono);
  color: #fff;
  background: var(--wine);
  padding: 4px 8px;
  border-radius: 4px;
  direction: ltr;
}
.tag-text { padding-inline-end: 20px; }

/* ---------- contact ---------- */

.contact {
  background:
    radial-gradient(70% 90% at 100% 100%, rgb(115 54 74 / 0.6), transparent 60%),
    var(--night);
  color: var(--on-dark);
  padding-block: 112px;
}
.contact .section-lede { color: var(--on-dark-dim); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.direct { margin: 40px 0 0; display: grid; gap: 18px; }
.direct div { display: grid; gap: 2px; }
.direct dt { font: 0.85rem var(--body); color: var(--on-dark-dim); }
html:lang(en) .direct dt { font: 0.78rem var(--mono); letter-spacing: 0.06em; }
.direct dd { margin: 0; font-size: 1.1rem; }
.direct dd[dir="ltr"], .direct a[dir="ltr"] { unicode-bidi: isolate; }
.direct a { text-decoration: none; border-block-end: 1px solid var(--hair-dark); }
.direct a:hover { border-color: var(--signal); }

.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  padding: 32px;
  border-radius: 16px;
  background: rgb(246 238 242 / 0.04);
  border: 1px solid var(--hair-dark);
}
.field { display: grid; gap: 8px; min-width: 0; }
.field-wide, .need, .form .btn-block, .form-error, .form-note { grid-column: 1 / -1; }
.field label, .need legend {
  font-size: 0.92rem;
  color: var(--on-dark-dim);
}
fieldset.need { border: 0; padding: 0; margin: 0; }
.need legend { padding: 0; margin-block-end: 8px; }
.form input:not([type="radio"]), .form textarea {
  width: 100%;
  font: inherit;
  color: var(--on-dark);
  background: rgb(0 0 0 / 0.25);
  border: 1px solid var(--hair-dark);
  border-radius: 8px;
  padding: 12px 14px;
  min-height: 48px;
}
.form textarea { resize: vertical; line-height: 1.6; }
.form input:focus-visible, .form textarea:focus-visible { outline-offset: 0; border-color: var(--signal); }
.form [aria-invalid="true"] { border-color: #ff9a9a; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--hair-dark);
  color: var(--on-dark-dim);
  font-size: 0.95rem;
}
.chip input:checked + span { border-color: var(--signal); color: var(--on-dark); background: rgb(242 114 156 / 0.14); }
.chip input:focus-visible + span { outline: 2px solid var(--signal); outline-offset: 2px; }
.form-error { color: #ffb3b3; font-size: 0.95rem; }
.form-note { color: var(--on-dark-dim); font-size: 0.92rem; min-height: 1em; }

/* ---------- footer ---------- */

.site-footer {
  background: #12060b;
  color: var(--on-dark-dim);
  border-block-start: 1px solid var(--hair-dark);
  font-size: 0.92rem;
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 32px;
  padding-block: 32px;
}
.footer-row img { width: 140px; height: auto; }
.foot-link { color: var(--on-dark-dim); text-decoration: none; border-block-end: 1px solid var(--hair-dark); }
.foot-link:hover { color: var(--on-dark); border-color: var(--signal); }
.footer-row .mono { font-family: var(--mono); margin-inline-start: auto; font-size: 0.8rem; }

/* ---------- responsive ---------- */

@media (max-width: 960px) {
  .nav { display: none; }
  .header-actions { margin-inline-start: auto; }
  .hero-grid { grid-template-columns: 1fr; min-height: 0; padding-block: 40px 72px; gap: 8px; }
  .hero-signal { order: -1; max-width: 420px; width: 100%; margin-inline: auto; }
  .rack-layout { grid-template-columns: 1fr; }
  .rack-panel { display: none; }
  .u-detail {
    display: block;
    padding: 18px 16px 8px;
    color: var(--on-dark-dim);
  }
  .u-detail[hidden] { display: none; }
  .u-detail ul { margin: 12px 0 0; padding-inline-start: 18px; }
  .u-detail li { margin-block: 6px; }
  .steps { grid-template-columns: 1fr; gap: 0; }
  .steps::before {
    inset-inline-end: auto;
    inset-inline-start: 18px;
    top: 18px;
    bottom: 18px;
    width: 2px;
    height: auto;
    background: repeating-linear-gradient(180deg, var(--wine) 0 10px, transparent 10px 16px);
  }
  .step {
    display: grid;
    grid-template-columns: 38px 1fr;
    column-gap: 18px;
    padding-block-end: 28px;
  }
  .step h3 { margin-block: 6px 4px; }
  .step p { grid-column: 2; }
  .handover-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 560px) {
  .brand img { width: 132px; }
  .header-actions .btn { display: none; }
  .rack { grid-template-columns: 10px 1fr 10px; padding: 12px 8px; }
  .rack-units { padding: 0 6px; }
  .u-face { grid-template-columns: auto 1fr auto; gap: 10px; padding: 0 10px; }
  .u-ports { display: none; }
  .form { grid-template-columns: 1fr; padding: 22px; }
  .rack-section, .process, .contact { padding-block: 80px; }
  .handover { padding-block-end: 80px; }
  .handover-grid { padding-block-start: 72px; }
  .footer-row .mono { margin-inline-start: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Plex Mono has no Arabic glyphs — Arabic labels use the body face instead */
html:lang(ar) .eyebrow,
html:lang(ar) .zone-label,
html:lang(ar) .panel-code {
  font-family: var(--body);
  font-weight: 500;
}

/* ---------- motion ----------
   Hidden starting states only apply under .js, so the page still reads fully without scripts.
   Everything here is cancelled by the prefers-reduced-motion block above. */

/* hero: the mark broadcasts, packets ride the arcs */
.pulse {
  fill: none;
  stroke: var(--signal);
  stroke-width: 2;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
  opacity: 0;
  transform-box: view-box;
  transform-origin: 300px 368.5px;
  animation: broadcast 3.8s cubic-bezier(.15, .6, .3, 1) 2.1s infinite;
}
.pulse-2 { animation-delay: 4s; }
@keyframes broadcast {
  0% { opacity: 0; transform: scale(0.85); }
  12% { opacity: 0.85; }
  100% { opacity: 0; transform: scale(3.1); }
}
.packet {
  fill: #fff;
  opacity: 0;
  filter: drop-shadow(0 0 5px var(--signal));
}

.btn-signal:hover { box-shadow: 0 0 0 5px rgb(242 114 156 / 0.18); }

/* section headings rise in */
.js .section-head[data-reveal],
.js .contact-copy[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.8s cubic-bezier(.2, .7, .2, 1);
}
.js .section-head.in,
.js .contact-copy.in { opacity: 1; transform: none; }

/* rack: units slot in top to bottom, then their LEDs power on */
.js .rack-layout .u {
  opacity: 0;
  transform: translateY(-10px) scale(1.015);
  transition: opacity 0.45s ease, transform 0.6s cubic-bezier(.2, .8, .2, 1);
  transition-delay: calc(var(--i, 0) * 90ms + 150ms);
}
.js .rack-layout.in .u { opacity: 1; transform: none; }
.js .rack-layout .u-leds b {
  transition: filter 0.15s steps(2, end);
  transition-delay: calc(var(--i, 0) * 90ms + 750ms);
}
.js .rack-layout:not(.in) .u-leds b { filter: grayscale(1) brightness(0.3); }
.js .rack-layout .rack-panel {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease 0.9s, transform 0.7s cubic-bezier(.2, .7, .2, 1) 0.9s;
}
.js .rack-layout.in .rack-panel { opacity: 1; transform: none; }

/* selecting a unit lights its ports one after another */
.u-face[aria-expanded="true"] .u-ports i {
  animation: port-on 0.55s ease both;
  animation-delay: calc(var(--p, 0) * 35ms);
}
@keyframes port-on {
  0% { background: #0d0509; }
  45% { background: var(--signal); box-shadow: 0 0 7px var(--signal); }
  100% { background: rgb(242 114 156 / 0.32); }
}
.u-face:hover { transform: translateY(-1px); }

/* process: the cable draws from step 1 to 5, each step lights as it arrives */
.js .steps::before {
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 1.7s cubic-bezier(.45, .1, .25, 1) 0.2s;
}
html.js[dir="ltr"] .steps::before { transform-origin: left center; }
.js .steps.in::before { transform: none; }
.js .step-n {
  transition: background-color 0.35s, color 0.35s, box-shadow 0.35s;
  transition-delay: calc(var(--i, 0) * 340ms + 250ms);
}
.js .steps.in .step-n {
  background: var(--wine);
  color: #fff;
  box-shadow: 0 0 0 6px rgb(115 54 74 / 0.12);
}
.js .step h3,
.js .step p {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s ease, transform 0.6s ease;
  transition-delay: calc(var(--i, 0) * 340ms + 350ms);
}
.js .steps.in .step h3,
.js .steps.in .step p { opacity: 1; transform: none; }

/* handover: labels swing onto their punched hole */
.js .tags .tag {
  opacity: 0;
  transform: rotate(-4deg) translateY(-14px);
  transform-origin: left center;
  transition: opacity 0.45s ease, transform 0.8s cubic-bezier(.3, 1.45, .5, 1);
  transition-delay: calc(var(--i, 0) * 120ms + 100ms);
}
html.js[dir="ltr"] .tags .tag { transform-origin: right center; transform: rotate(4deg) translateY(-14px); }
.js .tags.in .tag,
html.js[dir="ltr"] .tags.in .tag { opacity: 1; transform: none; }

@media (max-width: 960px) {
  .js .steps::before { transform: scaleY(0); transform-origin: center top; }
  html.js[dir="ltr"] .steps::before { transform-origin: center top; }
}