/* ==========================================================
   DigiTunel — global styles
   Fonts: TT Backwards (headings) + Canva Sans (body).
   Both are commercial fonts. Until the real files are added,
   Bebas Neue and Work Sans stand in.
   ========================================================== */

/* Headings: TT Backwards (licensed file in /fonts/TTBackwards.woff2).
   Body: Work Sans (free, loaded from Google Fonts). */
@font-face {
  font-family: "TT Backwards";
  src: local("TT Backwards"), local("TT Backwards Bold"),
       url("fonts/TTBackwards.woff2") format("woff2"),
       url("fonts/TTBackwards.woff") format("woff"),
       url("fonts/TTBackwards.otf") format("opentype"),
       url("fonts/TTBackwards.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --blue: #104d87;
  --sky: #258dc1;
  --navy: #082043;
  --white: #ffffff;
  --mist: #eaf2f9;

  --display: "TT Backwards", "Bebas Neue", "Oswald", Impact, sans-serif;
  --body: "Work Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --radius: 40px;
  --wrap: 1100px;
  --gutter: max(20px, env(safe-area-inset-left, 0px));
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--blue);
  color: var(--white);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; font-family: var(--display); font-weight: 400; text-wrap: balance; }
p { margin: 0; }

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

.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
  z-index: 2;
}

/* ---------- Circuit corners ---------- */
.corners { position: absolute; inset: 0; pointer-events: none; z-index: 1; overflow: hidden; }
.corners img {
  position: absolute;
  width: clamp(80px, 13vw, 190px);
  height: auto;
  animation: pulse 7s ease-in-out infinite alternate;
}
.corners .tl { top: 0; left: 0; }
.corners .tr { top: 0; right: 0; animation-delay: -2s; }
.corners .bl { bottom: 0; left: 0; animation-delay: -4s; }
.corners .br { bottom: 0; right: 0; animation-delay: -1s; }
@keyframes pulse { from { opacity: 0.55; } to { opacity: 1; } }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  z-index: 50;
  top: max(16px, env(safe-area-inset-top, 0px));
  left: 50%;
  translate: -50% 0;
  width: min(calc(100% - 2 * var(--gutter)), var(--wrap));
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px 0 24px;
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 22px;
  background: rgba(8, 32, 67, 0.28);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  transition: background 0.5s var(--ease), box-shadow 0.5s var(--ease), top 0.5s var(--ease);
}
.site-header.scrolled {
  background: rgba(8, 32, 67, 0.8);
  box-shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.6);
}
.site-header.light {
  border-color: var(--blue);
  background: rgba(255, 255, 255, 0.65);
}
.site-header.light.scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 40px -22px rgba(16, 77, 135, 0.55);
}

.brand img { height: 40px; width: auto; transition: transform 0.5s var(--ease), filter 0.5s var(--ease); }
.brand:hover img { transform: scale(1.04); filter: drop-shadow(0 0 12px rgba(37, 141, 193, 0.7)); }

.burger {
  width: 46px; height: 34px;
  display: flex; flex-direction: column; justify-content: center; align-items: flex-end; gap: 8px;
  background: none; border: 0; padding: 0; cursor: pointer;
}
.burger span {
  display: block; height: 2px; width: 100%;
  background: var(--white);
  transition: width 0.4s var(--ease), background 0.3s;
}
.burger span:last-child { width: 55%; }
.burger:hover span:last-child { width: 100%; }
.site-header.light .burger span { background: var(--blue); }

/* ---------- Menu overlay ---------- */
.menu {
  position: fixed; inset: 0; z-index: 100;
  background: var(--blue);
  opacity: 0; visibility: hidden;
  transition: opacity 0.55s var(--ease), visibility 0s linear 0.55s;
  overflow-y: auto;
}
.menu.open { opacity: 1; visibility: visible; transition: opacity 0.55s var(--ease); }
.menu::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 55%, rgba(37, 141, 193, 0.3), transparent 65%);
  pointer-events: none;
}
.menu-bar {
  z-index: 2;
  position: absolute;
  top: max(16px, env(safe-area-inset-top, 0px));
  left: 50%; translate: -50% 0;
  width: min(calc(100% - 2 * var(--gutter)), var(--wrap));
  height: 66px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px 0 24px;
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 22px;
}
.menu-close { background: none; border: 0; padding: 0; cursor: pointer; width: 38px; height: 38px; transition: transform 0.5s var(--ease); }
.menu-close:hover { transform: rotate(90deg); }
.menu-links {
  min-height: 100svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: clamp(1.1rem, 3.4vh, 2.1rem);
  padding: 7rem var(--gutter) 3rem;
  position: relative;
}
.menu-links a {
  font-weight: 700;
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  text-decoration: none;
  position: relative;
  padding-bottom: 4px;
  opacity: 0; translate: 0 22px;
  transition: opacity 0.7s var(--ease), translate 0.7s var(--ease), color 0.3s;
}
.menu-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: var(--sky); scale: 0 1; transform-origin: center;
  transition: scale 0.5s var(--ease);
}
.menu-links a:hover::after, .menu-links a:focus-visible::after { scale: 1 1; }
.menu-links a:hover { color: #cfe6f5; }
.menu.open .menu-links a { opacity: 1; translate: 0 0; }
.menu.open .menu-links a:nth-child(1) { transition-delay: 0.12s; }
.menu.open .menu-links a:nth-child(2) { transition-delay: 0.19s; }
.menu.open .menu-links a:nth-child(3) { transition-delay: 0.26s; }
.menu.open .menu-links a:nth-child(4) { transition-delay: 0.33s; }
.menu.open .menu-links a:nth-child(5) { transition-delay: 0.40s; }
.menu.open .menu-links a:nth-child(6) { transition-delay: 0.47s; }
body.no-scroll { overflow: hidden; }

/* ---------- Buttons ---------- */
.btn {
  position: relative; overflow: hidden; isolation: isolate;
  display: inline-block;
  font-family: var(--display);
  font-size: 1.2rem; letter-spacing: 0.06em; line-height: 1;
  color: var(--white); text-decoration: none;
  padding: 1rem 1.7rem 0.9rem;
  border: 0; cursor: pointer;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--sky);
  scale: 0 1; transform-origin: left;
  transition: scale 0.5s var(--ease);
}
.btn:hover { transform: translateY(-3px); box-shadow: 0 16px 30px -14px rgba(8, 32, 67, 0.7); }
.btn:hover::before { scale: 1 1; }
.btn-primary { background: var(--blue); }
.btn-dark { background: var(--navy); }

/* ---------- Reveal on scroll ---------- */
.js .reveal {
  opacity: 0; translate: 0 32px;
  transition: opacity 1.1s var(--ease), translate 1.1s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.in { opacity: 1; translate: 0 0; }

/* ---------- Section basics ---------- */
.section { position: relative; padding-block: clamp(5rem, 10vw, 8rem); overflow: hidden; }
.section-title {
  text-align: center;
  font-size: clamp(2.2rem, 4.4vw, 3.3rem);
  letter-spacing: 0.03em; line-height: 1.05;
  color: var(--white);
}
.section-title::after {
  content: ""; display: block; width: 64px; height: 2px; margin: 1rem auto 0;
  background: linear-gradient(90deg, transparent, var(--sky), transparent);
}

/* ---------- Cards ---------- */
.card {
  position: relative; overflow: hidden;
  background: var(--white);
  color: var(--blue);
  border-radius: var(--radius);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  box-shadow: 0 24px 50px -30px rgba(0, 0, 0, 0.55);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(115deg, transparent 38%, rgba(37, 141, 193, 0.18) 50%, transparent 62%);
  transform: translateX(-130%);
  transition: transform 1.1s var(--ease);
}
.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 36px 70px -26px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(37, 141, 193, 0.55), 0 0 44px -6px rgba(37, 141, 193, 0.5);
}
.card:hover::before { transform: translateX(130%); }
.card h3 { font-size: clamp(1.6rem, 2.3vw, 2rem); letter-spacing: 0.03em; line-height: 1.05; color: var(--blue); }
.card p { font-size: 0.92rem; line-height: 1.5; text-align: justify; hyphens: auto; }
.card img { transition: transform 0.8s var(--ease), filter 0.8s var(--ease); }
.card:hover img { transform: scale(1.07) translateY(-3px); filter: drop-shadow(0 12px 18px rgba(16, 77, 135, 0.28)); }
.card--sky h3 { color: var(--sky); }
.card--sky p { color: var(--sky); }

/* ---------- Steps (diagonal) ---------- */
.steps { --c: 120px; --gap: 36px; --shift: 215px; display: flex; flex-direction: column; gap: var(--gap); }
.step { position: relative; display: flex; align-items: center; gap: 1.6rem; margin-left: calc(var(--i) * var(--shift)); }
.step-num {
  flex: none; width: var(--c); height: var(--c);
  display: grid; place-items: center;
  border: 3px solid var(--white); border-radius: 50%;
  font-family: "Open Sans", var(--body); font-weight: 700; font-size: 2.6rem; line-height: 1;
  transition: transform 0.6s var(--ease), background 0.6s var(--ease), color 0.6s var(--ease), box-shadow 0.6s var(--ease);
}
.step:hover .step-num { transform: scale(1.07); background: var(--white); color: var(--blue); box-shadow: 0 0 40px rgba(255, 255, 255, 0.45); }
.step h3 { font-size: 1.5rem; letter-spacing: 0.03em; line-height: 1.1; }
.step p { font-size: 0.92rem; line-height: 1.5; max-width: 500px; opacity: 0.95; }
.step:not(:last-child)::after {
  content: ""; position: absolute;
  left: calc(var(--c) / 2); top: var(--c);
  width: calc(var(--shift) - var(--c) / 2 - 8px);
  height: calc(var(--c) / 2 + var(--gap));
  border-left: 3px solid var(--white); border-bottom: 3px solid var(--white);
  border-bottom-left-radius: 16px;
}
.step:not(:last-child)::before {
  content: ""; position: absolute;
  left: calc(var(--shift) - 16px); top: calc(var(--c) + var(--c) / 2 + var(--gap) - 7px);
  width: 11px; height: 11px;
  border-top: 3px solid var(--white); border-right: 3px solid var(--white);
  rotate: 45deg;
}

/* ---------- Footer ---------- */
.footer {
  position: relative; overflow: hidden;
  background: var(--white) url("assets/halftone-light.png") center / cover no-repeat;
  color: var(--blue);
  padding: clamp(4.5rem, 8vw, 6rem) 0 1.6rem;
}
.footer-grid { display: flex; justify-content: space-between; align-items: center; gap: 2.5rem; flex-wrap: wrap; }
.footer-brand { max-width: 300px; text-align: center; }
.footer-brand img { height: 72px; width: auto; margin: 0 auto 0.7rem; }
.footer-brand p { font-weight: 700; font-size: 0.9rem; line-height: 1.3; }
.footer-nav { text-align: center; }
.footer-nav h4 { font-family: var(--body); font-weight: 700; font-size: 1.05rem; margin-bottom: 0.5rem; }
.footer-nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.3rem; }
.footer-nav a {
  text-decoration: none; text-transform: uppercase; font-size: 0.88rem; letter-spacing: 0.02em;
  position: relative; padding-bottom: 2px; transition: color 0.3s;
}
.footer-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--sky); scale: 0 1; transform-origin: left; transition: scale 0.45s var(--ease);
}
.footer-nav a:hover { color: var(--sky); }
.footer-nav a:hover::after { scale: 1 1; }
.footer-legal { margin-top: clamp(2.5rem, 6vw, 4rem); text-align: center; font-size: 0.88rem; line-height: 1.45; position: relative; z-index: 2; }

/* ==========================================================
   HOME
   ========================================================== */
.hero {
  position: relative; overflow: hidden;
  min-height: 100svh;
  display: flex; flex-direction: column;
  background: #04101f;
}
.hero-bg {
  position: absolute; inset: -4%;
  background: url("assets/hero.jpg") center / cover no-repeat;
  animation: drift 26s ease-in-out infinite alternate;
  will-change: transform;
}
@keyframes drift { from { scale: 1.02; } to { scale: 1.12; } }
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(4, 16, 31, 0.1), rgba(4, 16, 31, 0.55) 80%),
    linear-gradient(to bottom, rgba(4, 16, 31, 0.5), transparent 28%, transparent 70%, rgba(4, 16, 31, 0.55));
}
.hero .corners { z-index: 3; }
.hero-hex {
  position: absolute; right: 0; top: 34%; width: clamp(110px, 16vw, 230px); z-index: 3; pointer-events: none;
  animation: float 9s ease-in-out infinite alternate;
}
@keyframes float { from { translate: 0 -8px; opacity: 0.8; } to { translate: -6px 10px; opacity: 1; } }

.hero-main {
  position: relative; z-index: 4; flex: 1;
  display: grid; place-items: center;
  padding: 9rem var(--gutter) 4rem;
  text-align: center;
}
.hero h1 { display: flex; flex-direction: column; align-items: center; line-height: 0.95; }
.hero h1 .t1 {
  color: var(--sky);
  font-size: clamp(3.2rem, 9vw, 7.2rem);
  letter-spacing: 0.02em;
  text-shadow: 0 6px 40px rgba(37, 141, 193, 0.45);
}
.hero h1 .t2 {
  color: var(--white);
  font-size: clamp(2.6rem, 7.4vw, 6rem);
  letter-spacing: 0.015em;
  margin-top: 0.15em;
  max-width: 11em;
}
.hero h1 .t1, .hero h1 .t2 { animation: rise 1.4s var(--ease) both; }
.hero h1 .t2 { animation-delay: 0.25s; }
@keyframes rise { from { opacity: 0; translate: 0 36px; letter-spacing: 0.1em; filter: blur(6px); } to { opacity: 1; translate: 0 0; filter: blur(0); } }

.hero-panel { position: relative; z-index: 5; width: min(63.5%, 836px); background: var(--white); color: #1a2b44; animation: panel 1.2s var(--ease) 0.7s both; }
@keyframes panel { from { opacity: 0; translate: -40px 0; } to { opacity: 1; translate: 0 0; } }
.hero-panel-inner { padding: 2.4rem 1.6rem 2.4rem max(24px, calc((100vw - var(--wrap)) / 2)); }
.hero-panel p { max-width: 470px; font-size: 0.95rem; line-height: 1.38; text-align: justify; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1.6rem; margin-top: 1.3rem; }
.hero-down {
  position: absolute; top: 0; right: 0; width: 46px; height: 40px;
  display: grid; place-items: center;
  background: var(--navy); color: var(--white); text-decoration: none; font-size: 1.1rem;
  transition: background 0.4s;
}
.hero-down:hover { background: var(--sky); }
.hero-down span { display: block; animation: nudge 2.2s ease-in-out infinite; }
@keyframes nudge { 0%, 100% { translate: 0 -2px; } 50% { translate: 0 4px; } }
.hero-panel-circuit { position: absolute; left: 0; bottom: -2px; width: 120px; z-index: 6; pointer-events: none; }

.hero-strip {
  position: relative; z-index: 5;
  background: var(--navy); color: var(--white);
  text-align: center; font-weight: 700; font-size: 0.92rem;
  padding: 1.2rem var(--gutter);
}

.what { background: var(--blue); }
.what-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: clamp(2.2rem, 5vw, 3.4rem); }
.what-grid .card { text-align: center; }
.what-grid .card p { margin-top: 0.7rem; }
.card-infra { grid-row: span 2; display: flex; flex-direction: column; }
.card-infra img { margin: auto auto 0; width: min(100%, 380px); padding-top: 1.5rem; }
.card-hubs img { margin: 1.1rem auto 0; width: 210px; }
.card-exec img { margin: 1.3rem auto 0; width: 150px; }

.how { background: var(--sky) url("assets/chip.png") center / cover no-repeat; }
.how::before { content: ""; position: absolute; inset: 0; background: rgba(37, 141, 193, 0.9); }
.how .steps { margin-top: clamp(2.5rem, 6vw, 4rem); }

.zones { background: var(--navy) url("assets/hex-pattern.png") center / cover no-repeat; }
.zones-intro { text-align: center; max-width: 880px; margin: 1.6rem auto 0; font-size: 0.95rem; line-height: 1.45; }
.zones-grid { display: grid; grid-template-columns: 0.82fr 1.18fr; gap: 22px; margin-top: clamp(2rem, 5vw, 3rem); align-items: start; }
.zones-col { display: grid; gap: 22px; }
.zones .card h3, .zones .card p { color: var(--sky); }
.zones .card--stack { text-align: center; }
.zones .card--stack p { margin-top: 0.6rem; text-align: center; }
.zones .card--stack img { margin: 1.1rem auto 0; width: 100px; }
.zones .card--row { display: grid; grid-template-columns: 110px 1fr; align-items: center; gap: 1.2rem; }
.zones .card--row img { width: 96px; margin-inline: auto; }
.zones .card--row .txt { text-align: center; }
.zones .card--row p { margin-top: 0.6rem; text-align: center; }
.zones .card--row.kelvin { grid-template-columns: 150px 1fr; }
.zones .card--row.kelvin img { width: 130px; }

.why { background: var(--blue) url("assets/halftone-dark.png") center / cover no-repeat; }
.why-list { display: grid; gap: clamp(2.8rem, 6vw, 4rem); justify-items: center; margin-top: clamp(2.4rem, 5vw, 3.4rem); text-align: center; }
.why-item { max-width: 460px; display: grid; justify-items: center; gap: 0.9rem; }
.why-item .step-num { width: 120px; height: 120px; }
.why-item:hover .step-num { transform: scale(1.07); background: var(--white); color: var(--blue); box-shadow: 0 0 40px rgba(255, 255, 255, 0.45); }
.why-item h3 { font-size: 1.5rem; letter-spacing: 0.03em; }
.why-item p { font-size: 0.92rem; line-height: 1.45; }

/* ==========================================================
   ACADEMY
   ========================================================== */
.academy-top, .academy-hybrid { background: var(--blue); }
.academy-top { padding-top: clamp(8rem, 14vw, 10rem); }
.academy-top::before, .academy-hybrid::before {
  content: ""; position: absolute; left: 50%; top: 50%; translate: -50% -50%;
  width: min(1500px, 150%); aspect-ratio: 1; opacity: 0.55;
  background: url("assets/rings.png") center / contain no-repeat; pointer-events: none;
}
.lede { text-align: center; max-width: 860px; margin: 1.6rem auto 0; font-size: 0.95rem; line-height: 1.45; }
.academy-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: clamp(2.2rem, 5vw, 3.2rem); max-width: 960px; margin-inline: auto; }
.academy-cards .card { text-align: center; }
.academy-cards .card img { margin: 0 auto 0.7rem; height: 96px; width: auto; }
.academy-cards .card p { margin-top: 0.6rem; text-align: center; }
.academy-cards .card:first-child { grid-column: 1 / -1; justify-self: center; width: min(100%, 500px); }
.academy-cards .card:first-child img { height: 100px; }
.academy-hybrid .section-title { max-width: 14em; margin-inline: auto; }
.passage { text-align: center; margin-top: 1.8rem; font-size: 0.95rem; }
.academy-hybrid .steps { margin-top: 2.5rem; }
.academy-hybrid .step h3 { font-size: 1.5rem; }
.academy-hybrid .steps { --shift: 235px; }
.academy-hybrid .step:last-child { margin-bottom: 0; }
.motto {
  position: relative; z-index: 3;
  background: var(--white); color: var(--blue);
  text-align: center; font-weight: 700; font-size: clamp(1rem, 2.1vw, 1.35rem);
  padding: 1.5rem var(--gutter) 1.4rem;
  border-top-right-radius: 60px;
  margin-top: -1px;
}
.academy-hybrid { padding-bottom: clamp(5rem, 9vw, 7rem); }

/* ==========================================================
   CONTACT
   ========================================================== */
.page-contact { background: var(--white); color: var(--blue); }
.contact { position: relative; overflow: hidden; background: var(--white); padding: clamp(8rem, 13vw, 9.5rem) 0 clamp(5rem, 9vw, 7rem); }
.contact h1 { text-align: center; color: var(--blue); font-size: clamp(2.4rem, 4.6vw, 3.4rem); letter-spacing: 0.03em; }
.contact h1::after { content: ""; display: block; width: 64px; height: 2px; margin: 0.9rem auto 0; background: linear-gradient(90deg, transparent, var(--sky), transparent); }
.form-card {
  position: relative; z-index: 2;
  max-width: 520px; margin: clamp(1.8rem, 4vw, 2.6rem) auto 0;
  padding: clamp(1.6rem, 4vw, 2.2rem);
  border: 1.5px solid var(--blue); border-radius: 46px;
  background: rgba(255, 255, 255, 0.9);
  transition: box-shadow 0.6s var(--ease), transform 0.6s var(--ease);
}
.form-card:focus-within { box-shadow: 0 30px 60px -34px rgba(16, 77, 135, 0.6), 0 0 0 4px rgba(37, 141, 193, 0.12); transform: translateY(-3px); }
.field { display: grid; gap: 0.4rem; margin-bottom: 1.15rem; }
.field label { font-family: var(--display); font-size: 1.05rem; letter-spacing: 0.04em; color: var(--blue); line-height: 1; }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--navy);
  background: var(--white);
  border: 1.5px solid var(--blue); border-radius: 14px;
  padding: 0.7rem 0.9rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--sky); box-shadow: 0 0 0 4px rgba(37, 141, 193, 0.18); }
.form-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.form-status { font-size: 0.92rem; min-height: 1.4em; }
.form-status.error { color: #a3262a; }
.form-status.ok { color: var(--blue); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-panel { width: 100%; }
  .hero-panel-inner { padding: 2.4rem var(--gutter) 2.2rem; }
  .what-grid { grid-template-columns: 1fr; }
  .card-infra { grid-row: auto; }
  .zones-grid { grid-template-columns: 1fr; }
  .steps { --shift: 56px; --c: 96px; }
  .step-num { font-size: 2.1rem; }
  .academy-hybrid .steps { --shift: 56px; }
}
@media (max-width: 600px) {
  .site-header, .menu-bar { height: 58px; padding: 0 20px 0 16px; border-radius: 18px; }
  .brand img { height: 34px; }
  .steps { --shift: 0px; --c: 84px; --gap: 28px; }
  .step { gap: 1rem; }
  .step:not(:last-child)::before, .step:not(:last-child)::after { display: none; }
  .step-num { font-size: 1.8rem; }
  .academy-cards { grid-template-columns: 1fr; }
  .zones .card--row, .zones .card--row.kelvin { grid-template-columns: 1fr; }
  .zones .card--row img, .zones .card--row.kelvin img { margin: 0 auto; }
  .footer-grid { justify-content: center; }
  .hero-hex { top: 26%; opacity: 0.8; }
  .hero-panel-circuit { width: 80px; }
  .why-item .step-num { width: 96px; height: 96px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .js .reveal { opacity: 1; translate: 0 0; }
}

/* footer credit link */
.footer-legal a{color:inherit;text-decoration:underline;text-underline-offset:2px}
.footer-legal a:hover{opacity:.8}