/* =========================================================
   Arqtech Life — hoja de estilos
   Marca: naranja #EF7D00 · azul #1C5680 (muestreados del logo)
   ========================================================= */
:root {
  --orange: #EF7D00;
  --orange-2: #FF9A2E;
  --orange-soft: rgba(239, 125, 0, .12);
  --blue: #1C5680;
  --blue-2: #2C77AE;
  --ink: #0B1D2E;
  --deep: #071521;
  --paper: #F5F7FA;
  --line: #DCE3EB;
  --text: #22313F;
  --muted: #5D6D7D;
  --white: #fff;

  --f-display: "Montserrat", system-ui, sans-serif;
  --f-body: "Manrope", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, monospace;

  --radius: 18px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --container: 1220px;
  --nav-h: 78px;
}

*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: hidden; overflow-x: clip; scroll-behavior: smooth; scroll-padding-top: var(--nav-h); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  overflow-x: hidden;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
body.is-loading { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { font-family: var(--f-display); margin: 0; line-height: 1.1; color: var(--ink); }
p { margin: 0 0 1em; }
::selection { background: var(--orange); color: #fff; }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 4px; }

.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.mono { font-family: var(--f-mono); letter-spacing: .02em; }
.section { padding: clamp(80px, 11vw, 140px) 0; position: relative; }
.section--dark { background: var(--ink); color: #C9D6E3; }
.section--deep { background: var(--deep); color: #C9D6E3; }
.section--dark h2, .section--dark h3, .section--deep h2, .section--deep h3 { color: #fff; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: 13px; font-weight: 500;
  text-transform: uppercase; letter-spacing: .14em; color: var(--orange);
  margin-bottom: 18px;
}
.eyebrow .idx { color: inherit; opacity: .6; padding-right: 10px; border-right: 1px solid currentColor; }
.h2 { font-size: clamp(32px, 4.6vw, 56px); font-weight: 800; letter-spacing: -.02em; margin-bottom: 22px; }
.hl-o { color: var(--orange); }
.hl-b { color: var(--blue); }
.section--dark .hl-b, .section--deep .hl-b { color: #5FA8DD; }
.section__head { max-width: 720px; margin-bottom: clamp(40px, 6vw, 70px); }
.section__head--center { margin-inline: auto; text-align: center; }
.section__head--split { max-width: none; display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: end; }
.section__lead { font-size: 19px; color: var(--muted); }
.section--dark .section__lead { color: #9FB2C4; }

/* ---------- Buttons ---------- */
.btn {
  --bg: var(--orange); --fg: #fff;
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px 28px; border-radius: 999px; border: 0;
  font-family: var(--f-display); font-weight: 700; font-size: 15px; letter-spacing: .01em;
  background: var(--bg); color: var(--fg); overflow: hidden; isolation: isolate;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), color .3s;
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: var(--ink); transform: translateY(101%); transition: transform .5s var(--ease);
}
.btn:hover::before { transform: translateY(0); }
.btn:hover { box-shadow: 0 14px 34px -12px rgba(239, 125, 0, .6); }
.btn--primary { --bg: var(--orange); }
.btn--ghost { --bg: transparent; --fg: #fff; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .35); }
.btn--ghost::before { background: #fff; }
.btn--ghost:hover { color: var(--ink); box-shadow: inset 0 0 0 1.5px #fff; }
.btn--light { --bg: #fff; --fg: var(--ink); }
.btn--light:hover { color: #fff; }
.btn--sm { padding: 11px 20px; font-size: 14px; }
.btn--block { width: 100%; }
.btn svg { transition: transform .4s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

/* ---------- Loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 1000; display: grid; place-items: center; align-content: center; gap: 28px;
  background: var(--deep); transition: opacity .7s var(--ease), visibility .7s;
}
.loader.is-done { opacity: 0; visibility: hidden; }
.loader__mark { width: 120px; }
.loader__mark .ld { stroke: var(--orange); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; stroke-dasharray: 400; stroke-dashoffset: 400; animation: draw 1.4s var(--ease) forwards; }
.loader__mark .ld--2 { animation-delay: .15s; }
.loader__mark .ld--3 { animation-delay: .3s; }
.loader__mark .ld--4 { stroke: #fff; animation-delay: .7s; }
.loader__mark .ld-dot { fill: #fff; opacity: 0; animation: fadein .3s 1.3s forwards; }
.loader__bar { width: 140px; height: 2px; background: rgba(255, 255, 255, .1); overflow: hidden; border-radius: 2px; }
.loader__bar span { display: block; height: 100%; width: 100%; background: var(--orange); transform: translateX(-100%); animation: bar 1.6s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fadein { to { opacity: 1; } }
@keyframes bar { to { transform: translateX(0); } }

/* ---------- Cursor ---------- */
.cursor { position: fixed; left: 0; top: 0; z-index: 999; pointer-events: none; display: none; }
.cursor span {
  display: block; width: 34px; height: 34px; margin: -17px 0 0 -17px; border-radius: 50%;
  border: 1.5px solid var(--orange); transition: width .3s var(--ease), height .3s var(--ease), margin .3s var(--ease), background .3s;
}
.cursor.is-hover span { width: 64px; height: 64px; margin: -32px 0 0 -32px; background: rgba(239, 125, 0, .12); }
@media (hover: hover) and (pointer: fine) { .cursor { display: block; } }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 100; height: var(--nav-h);
  transition: background .4s, box-shadow .4s, transform .5s var(--ease);
}
.nav.is-scrolled { background: rgba(7, 21, 33, .82); backdrop-filter: blur(14px) saturate(1.3); -webkit-backdrop-filter: blur(14px) saturate(1.3); box-shadow: 0 1px 0 rgba(255, 255, 255, .06); }
.nav.is-hidden { transform: translateY(-100%); }
.nav__inner { height: 100%; display: flex; align-items: center; gap: 28px; }
.nav__brand { display: flex; align-items: center; gap: 10px; color: #fff; }
.nav__brand img { width: 44px; transition: transform .6s var(--ease); }
.nav__brand:hover img { transform: rotate(-6deg) scale(1.06); }
.nav__word { font-family: var(--f-display); font-weight: 500; font-size: 17px; letter-spacing: .06em; }
.nav__word b { font-weight: 800; }
.nav__links { display: flex; gap: 30px; margin-left: auto; }
.nav__links a { position: relative; font-size: 15px; font-weight: 600; color: rgba(255, 255, 255, .78); transition: color .3s; }
.nav__links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 100%;
  background: var(--orange); transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease);
}
.nav__links a:hover, .nav__links a.is-active { color: #fff; }
.nav__links a:hover::after, .nav__links a.is-active::after { transform: scaleX(1); transform-origin: left; }
.nav__mobile-cta { display: none; }
.nav__toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; position: relative; margin-left: auto; }
.nav__toggle span { position: absolute; left: 10px; right: 10px; height: 2px; background: #fff; border-radius: 2px; transition: transform .4s var(--ease), top .4s var(--ease); }
.nav__toggle span:first-child { top: 17px; }
.nav__toggle span:last-child { top: 25px; }
.nav.is-open .nav__toggle span:first-child { top: 21px; transform: rotate(45deg); }
.nav.is-open .nav__toggle span:last-child { top: 21px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  background: radial-gradient(120% 90% at 80% 0%, #12385A 0%, var(--ink) 45%, var(--deep) 100%);
  color: #fff; overflow: hidden; padding: calc(var(--nav-h) + 40px) 0 120px;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__glow {
  position: absolute; width: 60vw; height: 60vw; right: -15vw; bottom: -30vw; border-radius: 50%;
  background: radial-gradient(circle, rgba(239, 125, 0, .28), transparent 65%); filter: blur(20px);
  animation: float 12s ease-in-out infinite alternate;
}
@keyframes float { to { transform: translate(-6vw, -4vw) scale(1.1); } }
.hero__inner { position: relative; z-index: 2; }
.hero__eyebrow { color: #FFB565; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 0 rgba(239, 125, 0, .7); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 12px rgba(239, 125, 0, 0); } 100% { box-shadow: 0 0 0 0 rgba(239, 125, 0, 0); } }
.hero__title { color: #fff; font-size: clamp(42px, 7.4vw, 96px); font-weight: 800; letter-spacing: -.035em; line-height: 1; margin-bottom: 30px; }
.hero__title .line { display: block; overflow: hidden; padding-bottom: .08em; }
.hero__title .line > span { display: inline-block; transform: translateY(110%); transition: transform 1.1s var(--ease); }
.hero__title .line:nth-child(2) > span { transition-delay: .12s; }
.hero__title .line:nth-child(3) > span { transition-delay: .24s; }
.is-ready .hero__title .line > span { transform: none; }
.rotator { font-style: normal; color: var(--orange); position: relative; display: inline-block; }
.rotator::after { content: ""; position: absolute; left: 0; right: 0; bottom: .02em; height: .08em; background: currentColor; opacity: .35; transform-origin: left; animation: underline 3s var(--ease) infinite; }
@keyframes underline { 0% { transform: scaleX(0); } 40%, 80% { transform: scaleX(1); } 100% { transform: scaleX(0); transform-origin: right; } }
.rotator.is-swap { animation: swap .6s var(--ease); }
@keyframes swap { 0% { opacity: 0; transform: translateY(40%); filter: blur(6px); } 100% { opacity: 1; transform: none; filter: none; } }
.hero__lead { max-width: 560px; font-size: clamp(17px, 1.6vw, 20px); color: #AFC2D4; margin-bottom: 38px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 64px; }
.hero__stats { display: flex; flex-wrap: wrap; gap: clamp(24px, 5vw, 64px); }
.hero__stats li { border-left: 2px solid var(--orange); padding-left: 16px; }
.hero__stats strong { display: block; font-family: var(--f-display); font-size: clamp(30px, 3.4vw, 42px); font-weight: 800; color: #fff; line-height: 1.1; }
.hero__stats small { display: block; font-size: 13px; color: #8EA3B7; max-width: 170px; line-height: 1.4; }
.hero__inner > * { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.hero__inner > .hero__title { opacity: 1; transform: none; }
.is-ready .hero__inner > * { opacity: 1; transform: none; }
.is-ready .hero__lead { transition-delay: .35s; }
.is-ready .hero__actions { transition-delay: .5s; }
.is-ready .hero__stats { transition-delay: .65s; }
.hero__coords { position: absolute; right: 32px; bottom: 40px; z-index: 2; display: flex; flex-direction: column; align-items: flex-end; gap: 4px; font-size: 12px; color: rgba(255, 255, 255, .4); }
.hero__scroll { position: absolute; left: 50%; bottom: 32px; z-index: 2; width: 26px; height: 42px; border: 1.5px solid rgba(255, 255, 255, .35); border-radius: 20px; transform: translateX(-50%); }
.hero__scroll span { position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; margin-left: -1.5px; border-radius: 3px; background: var(--orange); animation: scroll 1.8s infinite; }
@keyframes scroll { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

/* ---------- Marquee ---------- */
.marquee { background: var(--orange); color: #fff; overflow: hidden; padding: 18px 0; transform: rotate(-1.2deg); margin: -22px -10px 0; position: relative; z-index: 3; box-shadow: 0 18px 40px -20px rgba(239, 125, 0, .7); }
.marquee__track { display: flex; align-items: center; gap: 28px; width: max-content; animation: marquee 38s linear infinite; }
.marquee span { font-family: var(--f-display); font-weight: 800; font-size: clamp(18px, 2.2vw, 26px); text-transform: uppercase; letter-spacing: .02em; white-space: nowrap; }
.marquee i { width: 12px; height: 12px; border: 2px solid #fff; transform: rotate(45deg); flex: none; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- About ---------- */
.about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
.about__media { position: relative; }
.about__frame { position: relative; border-radius: var(--radius); overflow: visible; transform-style: preserve-3d; transition: transform .2s; }
.about__frame > img { border-radius: var(--radius); aspect-ratio: 4/5; object-fit: cover; width: 100%; box-shadow: 0 40px 80px -30px rgba(11, 29, 46, .5); }
.about__frame::before {
  content: ""; position: absolute; inset: -18px 18px 18px -18px; border: 2px solid var(--orange); border-radius: var(--radius); z-index: -1;
}
.about__badge {
  position: absolute; right: -24px; bottom: 40px; transform: translateZ(40px);
  display: flex; align-items: center; gap: 12px; padding: 16px 22px; border-radius: 14px;
  background: #fff; box-shadow: 0 20px 50px -20px rgba(11, 29, 46, .45);
  font-family: var(--f-display); font-weight: 800; font-size: 22px; color: var(--blue);
}
.about__badge img { width: 46px; }
.about__badge b { color: var(--orange); }
.blueprint-tag { position: absolute; left: 0; top: -40px; font-size: 12px; color: var(--muted); }
.about__text > p { font-size: 18px; color: var(--muted); }
.mission { position: relative; margin: 30px 0; padding: 26px 28px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.mission::before { content: ""; position: absolute; left: 0; top: 24px; bottom: 24px; width: 3px; background: var(--orange); border-radius: 3px; }
.mission__label { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .14em; color: var(--blue); margin-bottom: 8px; }
.mission p { margin: 0; font-size: 18px; color: var(--ink); font-weight: 600; }
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pillar { display: flex; align-items: center; gap: 14px; padding: 18px; border-radius: 14px; background: var(--ink); color: #fff; transition: transform .4s var(--ease), background .4s; }
.pillar:hover { transform: translateY(-4px); }
.pillar--tech:hover { background: var(--blue); }
.pillar--arq:hover { background: var(--orange); }
.pillar svg { width: 34px; height: 34px; flex: none; fill: none; stroke: var(--orange); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: stroke .4s; }
.pillar:hover svg { stroke: #fff; }
.pillar strong { display: block; font-family: var(--f-display); font-size: 15px; }
.pillar small { color: #9FB2C4; font-size: 13px; transition: color .4s; }
.pillar:hover small { color: rgba(255, 255, 255, .85); }

/* ---------- Blueprint grid bg ---------- */
.grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(95, 168, 221, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(95, 168, 221, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}
.section > .container { position: relative; }

/* ---------- Tech services ---------- */
.services { display: grid; grid-template-columns: 320px 1fr; gap: clamp(28px, 4vw, 56px); align-items: start; }
.services__list { display: flex; flex-direction: column; gap: 4px; position: sticky; top: calc(var(--nav-h) + 24px); }
.svc-tab {
  position: relative; display: flex; align-items: center; gap: 16px; text-align: left;
  padding: 17px 20px; border: 0; border-radius: 12px; background: transparent;
  font-family: var(--f-display); font-weight: 700; font-size: 17px; color: #8EA3B7;
  transition: color .3s, background .3s, padding .4s var(--ease);
}
.svc-tab span { font-size: 12px; color: #4F6A82; transition: color .3s; }
.svc-tab i { position: absolute; left: 0; top: 50%; width: 3px; height: 0; background: var(--orange); border-radius: 3px; transform: translateY(-50%); transition: height .4s var(--ease); }
.svc-tab:hover { color: #fff; background: rgba(255, 255, 255, .03); }
.svc-tab.is-active { color: #fff; background: rgba(255, 255, 255, .06); padding-left: 28px; }
.svc-tab.is-active span { color: var(--orange); }
.svc-tab.is-active i { height: 60%; }
.services__panels { position: relative; }
.svc { display: grid; gap: 30px; }
.svc[hidden] { display: none; }
.svc.is-active { animation: panelIn .7s var(--ease); }
@keyframes panelIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
.svc__img { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/8; background: #0e2538; }
.svc__img img { width: 100%; height: 100%; object-fit: cover; animation: zoomOut 1.4s var(--ease); }
@keyframes zoomOut { from { transform: scale(1.12); } to { transform: scale(1); } }
.svc__img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(11, 29, 46, .7)); }
.scan::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 30%; z-index: 2; pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(239, 125, 0, .18) 80%, rgba(239, 125, 0, .6) 100%);
  animation: scanline 3.6s linear infinite; mix-blend-mode: screen;
}
@keyframes scanline { from { transform: translateY(-100%); } to { transform: translateY(340%); } }
.rec { position: absolute; top: 16px; right: 18px; z-index: 3; font-size: 12px; color: #fff; background: rgba(0, 0, 0, .45); padding: 4px 10px; border-radius: 6px; animation: blink 1.4s steps(2) infinite; }
@keyframes blink { 50% { color: #ff4d4d; } }
.svc__body h3 { font-size: clamp(24px, 2.6vw, 32px); margin-bottom: 22px; }
.feats { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.feats li {
  padding: 22px; border-radius: 14px; background: rgba(255, 255, 255, .035); border: 1px solid rgba(255, 255, 255, .07);
  font-size: 15px; color: #9FB2C4; line-height: 1.55; transition: border-color .3s, transform .4s var(--ease), background .3s;
  opacity: 0; animation: featIn .6s var(--ease) forwards;
}
.feats li:nth-child(2) { animation-delay: .08s; }
.feats li:nth-child(3) { animation-delay: .16s; }
.feats li:nth-child(4) { animation-delay: .24s; }
@keyframes featIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.feats li:hover { border-color: rgba(239, 125, 0, .5); background: rgba(239, 125, 0, .06); transform: translateY(-3px); }
.feats b { display: flex; align-items: center; gap: 10px; font-family: var(--f-display); font-size: 16px; color: #fff; margin-bottom: 6px; }
.feats b::before { content: ""; width: 8px; height: 8px; border: 2px solid var(--orange); transform: rotate(45deg); flex: none; }

/* ---------- Ecosystem ---------- */
.eco { overflow: hidden; }
.eco__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 6vw, 80px); align-items: center; }
.eco__text > p { font-size: 18px; color: #9FB2C4; }
.eco__platform { margin-top: 30px; padding: 26px; border-radius: var(--radius); background: linear-gradient(135deg, rgba(239, 125, 0, .16), rgba(28, 86, 128, .2)); border: 1px solid rgba(239, 125, 0, .3); }
.eco__platform span { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .14em; color: var(--orange-2); margin-bottom: 8px; }
.eco__platform p { margin: 0; color: #fff; font-weight: 600; font-size: 17px; }
.eco__diagram { position: relative; aspect-ratio: 1; width: 100%; max-width: 560px; margin-inline: auto; }
.eco__svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.eco__orbit { fill: none; stroke: rgba(95, 168, 221, .2); stroke-dasharray: 4 8; transform-origin: 250px 250px; animation: spin 60s linear infinite; }
.eco__orbit--in { stroke: rgba(239, 125, 0, .25); animation-direction: reverse; animation-duration: 40s; }
@keyframes spin { to { transform: rotate(360deg); } }
.eco__links path { stroke: rgba(95, 168, 221, .35); stroke-width: 1.5; fill: none; stroke-dasharray: 190; stroke-dashoffset: 190; transition: stroke-dashoffset 1.4s var(--ease); }
.eco__diagram.is-in .eco__links path { stroke-dashoffset: 0; }
.eco__pulses circle { fill: var(--orange); filter: drop-shadow(0 0 6px var(--orange)); }
.eco__core {
  position: absolute; left: 50%; top: 50%; width: 30%; aspect-ratio: 1; transform: translate(-50%, -50%);
  display: grid; place-items: center; align-content: center; gap: 6px; text-align: center; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #183D5E, var(--ink)); border: 1.5px solid rgba(239, 125, 0, .6);
  box-shadow: 0 0 60px rgba(239, 125, 0, .25), inset 0 0 30px rgba(0, 0, 0, .4);
  font-family: var(--f-mono); font-size: clamp(10px, 1.1vw, 12px); color: #fff; text-transform: uppercase; letter-spacing: .1em; line-height: 1.3;
}
.eco__core img { width: 42%; animation: breathe 3s ease-in-out infinite; }
@keyframes breathe { 50% { transform: scale(1.08); } }
.eco__node {
  position: absolute; transform: translate(-50%, -50%) scale(.6); opacity: 0;
  display: flex; flex-direction: column; align-items: center; gap: 4px; text-align: center; width: 34%;
  transition: transform .8s var(--ease), opacity .8s var(--ease);
}
.eco__diagram.is-in .eco__node { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.eco__node svg {
  width: 58px; height: 58px; padding: 15px; border-radius: 16px; background: var(--ink); border: 1px solid rgba(95, 168, 221, .35);
  fill: none; stroke: var(--orange); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
  transition: background .3s, transform .4s var(--ease), border-color .3s;
}
.eco__node:hover svg { background: var(--orange); stroke: #fff; transform: translateY(-4px) rotate(-4deg); border-color: var(--orange); }
.eco__node b { font-family: var(--f-display); color: #fff; font-size: clamp(12px, 1.3vw, 15px); line-height: 1.2; margin-top: 4px; }
.eco__node small { font-size: 12px; color: #8EA3B7; }
.n1 { left: 50%; top: 12%; transition-delay: .2s !important; }
.n2 { left: 88%; top: 50%; transition-delay: .35s !important; }
.n3 { left: 50%; top: 88%; transition-delay: .5s !important; }
.n4 { left: 12%; top: 50%; transition-delay: .65s !important; }

/* ---------- Construction ---------- */
.build { background:
  linear-gradient(rgba(28, 86, 128, .05) 1px, transparent 1px) 0 0 / 32px 32px,
  linear-gradient(90deg, rgba(28, 86, 128, .05) 1px, transparent 1px) 0 0 / 32px 32px,
  var(--paper); }
.build__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bcard {
  position: relative; display: flex; flex-direction: column; border-radius: var(--radius); overflow: hidden;
  background: #fff; border: 1px solid var(--line); transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.bcard:hover { transform: translateY(-8px); box-shadow: 0 40px 70px -35px rgba(11, 29, 46, .45); }
.bcard__img { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.bcard__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease), filter .6s; filter: saturate(.85); }
.bcard:hover .bcard__img img { transform: scale(1.08); filter: saturate(1.1); }
.bcard__img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(11, 29, 46, .55)); }
.bcard__body { position: relative; padding: 30px 28px 32px; flex: 1; }
.bcard__num { position: absolute; top: -18px; left: 28px; z-index: 2; padding: 6px 12px; border-radius: 8px; background: var(--orange); color: #fff; font-size: 12px; }
.bcard h3 { font-size: 24px; margin: 6px 0 6px; }
.bcard__sub { color: var(--muted); font-size: 15px; margin-bottom: 20px; }
.bcard ul { display: grid; gap: 12px; border-top: 1px dashed var(--line); padding-top: 18px; }
.bcard li { position: relative; padding-left: 22px; font-size: 15px; line-height: 1.5; color: var(--muted); }
.bcard li::before { content: ""; position: absolute; left: 0; top: 7px; width: 9px; height: 9px; border: 2px solid var(--orange); transform: rotate(45deg); }
.bcard li b { display: block; color: var(--ink); font-family: var(--f-display); font-size: 15px; }

/* ---------- Process ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: s; }
.step { position: relative; padding: 32px 26px; border-radius: var(--radius); background: rgba(255, 255, 255, .03); border: 1px solid rgba(255, 255, 255, .07); transition: background .4s, border-color .4s, transform .5s var(--ease); }
.step:hover { background: rgba(239, 125, 0, .07); border-color: rgba(239, 125, 0, .4); transform: translateY(-6px); }
.step__n { display: inline-grid; place-items: center; width: 50px; height: 50px; border-radius: 50%; border: 1.5px solid var(--orange); color: var(--orange); font-size: 15px; margin-bottom: 22px; transition: background .4s, color .4s; }
.step:hover .step__n { background: var(--orange); color: #fff; }
.step h3 { font-size: 22px; margin-bottom: 10px; }
.step p { margin: 0; font-size: 15px; color: #9FB2C4; }
.steps__line { position: relative; height: 2px; margin-top: 40px; background: rgba(255, 255, 255, .08); border-radius: 2px; overflow: hidden; }
.steps__line span { position: absolute; inset: 0; background: linear-gradient(90deg, var(--blue-2), var(--orange)); transform: scaleX(0); transform-origin: left; }

/* ---------- Clients ---------- */
.clients { padding-bottom: clamp(60px, 8vw, 100px); }
.clients__row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 980px; margin-inline: auto; }
.client {
  display: grid; place-items: center; height: 170px; padding: 30px 36px; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line); transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .4s;
}
.client img { max-height: 90px; width: auto; max-width: 100%; object-fit: contain; filter: saturate(.9); transition: filter .5s, transform .5s var(--ease); }
.client:hover { transform: translateY(-6px); border-color: rgba(239, 125, 0, .45); box-shadow: 0 30px 50px -30px rgba(11, 29, 46, .35); }
.client:hover img { filter: none; transform: scale(1.05); }

/* ---------- CTA ---------- */
.cta { position: relative; padding: 0 0 clamp(60px, 8vw, 100px); }
.cta__inner {
  position: relative; overflow: hidden; text-align: center; padding: clamp(56px, 8vw, 96px) 24px; border-radius: 28px;
  background: linear-gradient(120deg, var(--orange) 0%, #F59222 50%, #D96E00 100%); color: #fff;
}
.cta__inner::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .12) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .12) 1px, transparent 1px);
  background-size: 40px 40px; mask-image: radial-gradient(ellipse at center, transparent 20%, #000 90%); -webkit-mask-image: radial-gradient(ellipse at center, transparent 20%, #000 90%);
}
.cta__mark { position: absolute; right: -40px; bottom: -50px; width: 300px; opacity: .14; filter: brightness(0) invert(1); transform: rotate(-10deg); }
.cta h2 { position: relative; color: #fff; font-size: clamp(30px, 4.4vw, 54px); font-weight: 800; letter-spacing: -.02em; margin-bottom: 14px; }
.cta p { position: relative; max-width: 520px; margin: 0 auto 32px; font-size: 18px; color: rgba(255, 255, 255, .9); }
.cta .btn { position: relative; }

/* ---------- Contact ---------- */
.contact { padding-top: 0; }
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 70px); align-items: start; }
.cinfo { display: grid; gap: 18px; margin: 10px 0 30px; }
.cinfo li { display: flex; gap: 16px; align-items: flex-start; }
.cinfo__ic { flex: none; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; background: var(--orange-soft); }
.cinfo__ic svg { width: 22px; height: 22px; fill: none; stroke: var(--orange); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.cinfo small { display: block; font-family: var(--f-mono); font-size: 12px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.cinfo a, .cinfo span { font-weight: 700; color: var(--ink); }
.cinfo a:hover { color: var(--orange); }
.map { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 16/10; background: #e6ebf0; }
.map iframe { width: 100%; height: 100%; border: 0; filter: grayscale(.4) contrast(1.05); }
.form { position: sticky; top: calc(var(--nav-h) + 20px); padding: clamp(28px, 4vw, 44px); border-radius: 24px; background: var(--ink); color: #C9D6E3; box-shadow: 0 50px 90px -40px rgba(11, 29, 46, .6); }
.form h3 { color: #fff; font-size: 26px; margin-bottom: 6px; }
.form__hint { font-size: 14px; color: #8EA3B7; margin-bottom: 26px; }
.field { position: relative; margin-bottom: 16px; }
.field input, .field textarea {
  width: 100%; padding: 24px 16px 10px; border-radius: 12px; border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .04); color: #fff; font: inherit; font-size: 16px; resize: vertical; transition: border-color .3s, background .3s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--orange); background: rgba(255, 255, 255, .07); }
.field label { position: absolute; left: 17px; top: 17px; font-size: 16px; color: #8EA3B7; pointer-events: none; transition: transform .3s var(--ease), font-size .3s, color .3s; transform-origin: left; }
.field input:focus + label, .field input:not(:placeholder-shown) + label,
.field textarea:focus + label, .field textarea:not(:placeholder-shown) + label { transform: translateY(-11px); font-size: 12px; color: var(--orange-2); }
.chips { border: 0; padding: 0; margin: 6px 0 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.chips legend { width: 100%; font-size: 14px; color: #8EA3B7; margin-bottom: 10px; padding: 0; }
.chips label { cursor: pointer; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips span { display: inline-block; padding: 8px 14px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .15); font-size: 13px; font-weight: 600; transition: all .25s; }
.chips label:hover span { border-color: rgba(239, 125, 0, .6); color: #fff; }
.chips input:checked + span { background: var(--orange); border-color: var(--orange); color: #fff; }
.chips input:focus-visible + span { outline: 2px solid var(--orange); outline-offset: 2px; }
.form__error { min-height: 1.2em; font-size: 14px; color: #FF8A7A; margin: 0 0 10px; }
.form .btn::before { background: #fff; }
.form .btn:hover { color: var(--ink); }

/* ---------- Footer ---------- */
.footer { background: var(--deep); color: #8EA3B7; padding: 80px 0 30px; font-size: 15px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 50px; border-bottom: 1px solid rgba(255, 255, 255, .07); }
.footer__brand img { width: 130px; margin-bottom: 18px; }
.footer__brand p { max-width: 280px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer ul { display: grid; gap: 10px; }
.footer a { transition: color .3s; }
.footer a:hover { color: var(--orange); }
.footer__bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding-top: 26px; font-size: 13px; }

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 90; display: grid; place-items: center; width: 60px; height: 60px; border-radius: 50%;
  background: #25D366; color: #fff; box-shadow: 0 14px 30px -10px rgba(37, 211, 102, .7); transition: transform .4s var(--ease);
  transform: scale(0); animation: waIn .6s 2.4s var(--ease) forwards;
}
.wa-float::before { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid #25D366; animation: ring 2.4s 3s infinite; }
.wa-float:hover { transform: scale(1.1) rotate(-8deg); }
@keyframes waIn { to { transform: scale(1); } }
@keyframes ring { 0% { transform: scale(1); opacity: .8; } 100% { transform: scale(1.7); opacity: 0; } }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .nav__links { gap: 22px; }
  .services { grid-template-columns: 1fr; }
  .services__list { position: relative; top: 0; flex-direction: row; overflow-x: auto; gap: 8px; padding-bottom: 6px; margin-inline: -16px; padding-inline: 16px; scrollbar-width: none; scroll-snap-type: x mandatory; }
  .services__list::-webkit-scrollbar { display: none; }
  .svc-tab { flex: none; white-space: nowrap; padding: 12px 18px; border: 1px solid rgba(255, 255, 255, .1); border-radius: 999px; font-size: 15px; scroll-snap-align: start; }
  .svc-tab.is-active { padding-left: 18px; background: var(--orange); border-color: var(--orange); }
  .svc-tab.is-active span { color: #fff; }
  .svc-tab i { display: none; }
  .build__cards { grid-template-columns: 1fr 1fr; }
  .build__cards .bcard:last-child { grid-column: span 2; }
  .steps { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  :root { --nav-h: 68px; }
  .nav__toggle { display: block; }
  .nav__cta { display: none; }
  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto; height: calc(100svh - var(--nav-h)); flex-direction: column; gap: 0; margin: 0; padding: 20px 24px 40px;
    background: var(--deep); transform: translateX(100%); transition: transform .6s var(--ease); overflow-y: auto;
  }
  .nav.is-open { background: var(--deep); }
  .nav.is-open .nav__links { transform: none; }
  .nav__links a:not(.btn) { font-family: var(--f-display); font-size: 26px; font-weight: 700; padding: 16px 0; border-bottom: 1px solid rgba(255, 255, 255, .07); }
  .nav__links a:not(.btn)::after { display: none; }
  .nav__mobile-cta { display: inline-flex; margin-top: 30px; }
  .about__grid, .eco__grid, .contact__grid { grid-template-columns: 1fr; }
  .section__head--split { grid-template-columns: 1fr; gap: 0; }
  .about__frame > img { aspect-ratio: 16/11; }
  .about__badge { right: 12px; bottom: -20px; }
  .form { position: relative; top: 0; }
  .hero__coords { display: none; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero { padding-bottom: 100px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__stats { gap: 20px; }
  .hero__stats li { flex: 1 1 40%; }
  .pillars { grid-template-columns: 1fr; }
  .build__cards { grid-template-columns: 1fr; }
  .build__cards .bcard:last-child { grid-column: auto; }
  .steps { grid-template-columns: 1fr; }
  .clients__row { grid-template-columns: 1fr; }
  .client { height: 140px; }
  .svc__img { aspect-ratio: 16/10; }
  .eco__node small { display: none; }
  .eco__node svg { width: 46px; height: 46px; padding: 11px; border-radius: 12px; }
  .footer__grid { grid-template-columns: 1fr; }
  .about__frame::before { inset: -10px 10px 10px -10px; }
  .wa-float { width: 54px; height: 54px; right: 16px; bottom: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal, .hero__inner > *, .hero__title .line > span { opacity: 1 !important; transform: none !important; }
  .marquee__track { animation: none; }
}