/* ===== IFS Ingeniería ===== */
:root {
  --red: #cc0605;
  --red-hi: #ff2a26;
  --bg: #0b0b0d;
  --bg-alt: #111114;
  --panel: #16161a;
  --line: rgba(255, 255, 255, .09);
  --text: #f4f4f5;
  --muted: #a0a0a8;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body: "Barlow", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.is-loading { overflow: hidden; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
[hidden] { display: none !important; }
::selection { background: var(--red); color: #fff; }

.container { width: min(1180px, 100% - 48px); margin-inline: auto; }

h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1; text-transform: uppercase; letter-spacing: .01em; }
h2 { font-size: clamp(2.4rem, 6vw, 4.4rem); }
h3 { font-size: 1.7rem; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: .8rem; font-weight: 600; letter-spacing: .28em; text-transform: uppercase;
  color: var(--red-hi); margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--red); }

/* ----- Loader ----- */
.loader {
  position: fixed; inset: 0; z-index: 100; background: var(--bg);
  display: grid; place-content: center; justify-items: center; gap: 22px;
  transition: transform .9s var(--ease) .15s;
}
.loader__mark {
  width: 120px; height: 108px; background: var(--red);
  display: grid; place-items: center; overflow: hidden;
  animation: mark-in .7s var(--ease) both;
}
.loader__mark span {
  font-family: var(--display); font-weight: 800; font-size: 76px; line-height: 1; color: #fff;
  animation: rise .7s var(--ease) .25s both;
}
.loader__bar { width: 120px; height: 2px; background: var(--line); overflow: hidden; }
.loader__bar i { display: block; height: 100%; background: var(--red); animation: load 1.1s var(--ease) both; }
body:not(.is-loading) .loader { transform: translateY(-100%); }
@keyframes mark-in { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0); } }
@keyframes rise { from { transform: translateY(110%); } to { transform: none; } }
@keyframes load { from { transform: translateX(-100%); } to { transform: none; } }

/* ----- Barra de progreso ----- */
.progress {
  position: fixed; top: 0; left: 0; z-index: 60; height: 3px; width: 100%;
  background: var(--red); transform-origin: left; transform: scaleX(var(--p, 0));
}

/* ----- Logo ----- */
.logo { display: inline-flex; align-items: stretch; gap: 10px; height: 44px; }
.logo__box {
  background: var(--red); color: #fff; padding: 0 9px;
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 800; font-size: 30px; line-height: 1;
  transition: background .3s;
}
.logo:hover .logo__box { background: var(--red-hi); }
.logo__rule { width: 2px; background: var(--red); }
.logo__text { display: flex; flex-direction: column; justify-content: center; line-height: 1; }
.logo__text b { font-weight: 700; font-size: 23px; letter-spacing: .02em; }
.logo__text small { font-weight: 300; font-size: 11.6px; letter-spacing: .1em; margin-top: 4px; }
.logo--small { height: 36px; }
.logo--small .logo__box { font-size: 24px; }
.logo--small .logo__text b { font-size: 18px; }
.logo--small .logo__text small { font-size: 9.2px; }

/* ----- Nav ----- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px clamp(20px, 4vw, 48px);
  transition: padding .4s var(--ease), background .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  padding-block: 12px;
  background: rgba(11, 11, 13, .78);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-color: var(--line);
}
.nav__links { display: flex; align-items: center; gap: 34px; }
.nav__links a:not(.btn) {
  position: relative; font-size: .92rem; font-weight: 500; letter-spacing: .06em; text-transform: uppercase;
  color: var(--muted); transition: color .3s;
}
.nav__links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 100%; height: 2px; background: var(--red);
  transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease);
}
.nav__links a:not(.btn):hover, .nav__links a.is-current { color: var(--text); }
.nav__links a:not(.btn):hover::after, .nav__links a.is-current::after { transform: scaleX(1); transform-origin: left; }
.nav__toggle { display: none; width: 44px; height: 44px; background: none; border: 0; cursor: pointer; position: relative; z-index: 2; }
.nav__toggle span { position: absolute; left: 10px; width: 24px; height: 2px; background: #fff; transition: transform .4s var(--ease), top .4s var(--ease); }
.nav__toggle span:first-child { top: 17px; }
.nav__toggle span:last-child { top: 26px; }
.nav__toggle[aria-expanded="true"] span { top: 21px; }
.nav__toggle[aria-expanded="true"] span:first-child { transform: rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: rotate(-45deg); }

/* ----- Botones ----- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  padding: 15px 30px; overflow: hidden; isolation: isolate;
  font-family: var(--body); font-weight: 600; font-size: .95rem; letter-spacing: .08em; text-transform: uppercase;
  color: #fff; background: var(--red); border: 1px solid var(--red);
  transition: color .35s, border-color .35s, transform .35s var(--ease);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: #fff;
  transform: translateY(101%); transition: transform .45s var(--ease);
}
.btn:hover { color: #0b0b0d; border-color: #fff; transform: translateY(-2px); }
.btn:hover::before { transform: none; }
.btn--ghost { background: transparent; border-color: rgba(255, 255, 255, .28); }
.btn--small { padding: 10px 20px; font-size: .82rem; }
.btn--big { padding: 19px 38px; font-size: 1rem; }
.btn--dark { background: #0b0b0d; border-color: #0b0b0d; }

/* ----- Hero ----- */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; overflow: hidden; padding: 130px 0 110px; }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .75; }
.hero__glow {
  position: absolute; width: 900px; height: 900px; right: -260px; top: -300px; pointer-events: none;
  background: radial-gradient(circle, rgba(204, 6, 5, .32), transparent 62%);
  animation: drift 14s ease-in-out infinite alternate;
}
@keyframes drift { to { transform: translate(-120px, 90px) scale(1.15); } }
.hero::after {
  content: ""; position: absolute; inset: auto 0 0; height: 180px; pointer-events: none;
  background: linear-gradient(transparent, var(--bg));
}
.hero__inner { position: relative; z-index: 1; }
.hero__title { font-size: clamp(2rem, 10.6vw, 8.2rem); line-height: .92; font-weight: 800; }
.hero__title > span { display: block; }
.rotator { position: relative; height: 1em; color: var(--red-hi); overflow: hidden; margin-top: .06em; }
.rotator span {
  position: absolute; left: 0; top: 0; white-space: nowrap; line-height: 1;
  transform: translateY(105%); opacity: 0;
  transition: transform .8s var(--ease), opacity .5s;
}
.rotator span.is-active { transform: none; opacity: 1; }
.rotator span.is-out { transform: translateY(-105%); opacity: 0; }
.hero__lead { max-width: 600px; margin-top: 34px; font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--muted); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }

.hero-in { opacity: 0; transform: translateY(34px); }
body:not(.is-loading) .hero-in {
  opacity: 1; transform: none;
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: calc(.55s + var(--d) * .11s);
}

.hero__scroll {
  position: absolute; left: 50%; bottom: 34px; z-index: 2; translate: -50% 0;
  width: 26px; height: 42px; border: 1px solid rgba(255, 255, 255, .35); border-radius: 14px;
}
.hero__scroll span {
  position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; margin-left: -1.5px; border-radius: 2px;
  background: var(--red-hi); animation: wheel 1.8s var(--ease) infinite;
}
@keyframes wheel { 0% { opacity: 0; transform: translateY(-4px); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(16px); } }

/* ----- Marquesina ----- */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 22px 0; background: var(--bg-alt); }
.marquee__track { display: flex; align-items: center; gap: 36px; width: max-content; animation: marquee 34s linear infinite; }
.marquee span {
  font-family: var(--display); font-weight: 700; font-size: clamp(1.5rem, 3vw, 2.3rem); text-transform: uppercase; white-space: nowrap;
  color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .45);
}
.marquee span:nth-of-type(3n+1) { color: var(--text); -webkit-text-stroke: 0; }
.marquee i { width: 10px; height: 10px; background: var(--red); flex: none; }
@keyframes marquee { to { transform: translateX(calc(-50% - 18px)); } }

/* ----- Secciones ----- */
.section { padding: clamp(84px, 11vw, 150px) 0; position: relative; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section--tight { padding-top: 0; }
.section__head { max-width: 760px; margin-bottom: clamp(44px, 6vw, 76px); }
.section__lead { margin-top: 20px; color: var(--muted); font-size: 1.12rem; max-width: 620px; }

/* ----- Reveal ----- */
.reveal { opacity: 0; transform: translateY(44px); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: var(--delay, 0s); }
.reveal.is-in { opacity: 1; transform: none; }

/* ----- Tarjetas de servicios ----- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  position: relative; overflow: hidden; padding: 34px 30px 30px;
  background: var(--panel); border: 1px solid var(--line);
  transition: opacity .9s var(--ease), transform .5s var(--ease), border-color .4s;
  transition-delay: var(--delay, 0s), 0s, 0s;
}
.card--wide { grid-column: span 2; }
.card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .4s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(204, 6, 5, .22), transparent 65%);
}
.card::after {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%; background: var(--red);
  transform: scaleX(0); transform-origin: left; transition: transform .6s var(--ease);
}
.card.is-in:hover { transform: translateY(-6px); border-color: rgba(204, 6, 5, .55); }
.card:hover::before { opacity: 1; }
.card:hover::after { transform: none; }
.card__icon { width: 54px; height: 54px; margin-bottom: 26px; transition: transform .5s var(--ease); }
.card:hover .card__icon { transform: scale(1.1) rotate(-4deg); }
.card__icon svg { width: 100%; height: 100%; fill: none; stroke: var(--red-hi); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.card__num { position: absolute; top: 26px; right: 28px; font-family: var(--display); font-weight: 700; font-size: 1.1rem; color: rgba(255, 255, 255, .22); letter-spacing: .08em; }
.card h3 { margin-bottom: 12px; }
.card p { color: var(--muted); max-width: 520px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.tags li { font-size: .76rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; padding: 5px 11px; border: 1px solid var(--line); color: #c9c9d0; }

/* ----- Proyectos ----- */
.projects { display: grid; gap: clamp(60px, 8vw, 110px); }
.project { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(28px, 6vw, 84px); align-items: center; }
.project--flip .project__visual { order: 2; }
.project__visual { perspective: 1100px; }
.project__kind { font-size: .8rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--red-hi); }
.project__info h3 { font-size: clamp(2.6rem, 5.4vw, 4.2rem); margin: 12px 0 18px; }
.project__info p { color: var(--muted); font-size: 1.1rem; max-width: 460px; }
.link { display: inline-flex; gap: 10px; margin-top: 24px; font-weight: 600; border-bottom: 2px solid var(--red); padding-bottom: 4px; }
.link span { transition: transform .35s var(--ease); }
.link:hover span { transform: translateX(6px); }

.mock {
  background: #1a1a1f; border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .8), 0 0 0 1px rgba(255, 255, 255, .02);
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .5s var(--ease);
  will-change: transform;
}
.mock__bar { display: flex; align-items: center; gap: 7px; padding: 12px 14px; background: #222228; border-bottom: 1px solid var(--line); }
.mock__bar i { width: 10px; height: 10px; border-radius: 50%; background: #3a3a42; }
.mock__bar i:first-child { background: var(--red); }
.mock__bar span { margin-left: 12px; font-size: .78rem; color: var(--muted); letter-spacing: .04em; }
.mock__body { aspect-ratio: 16 / 9.5; padding: 20px; display: flex; gap: 16px; }

.mock--agenda aside { width: 22%; display: grid; gap: 10px; align-content: start; }
.mock--agenda aside b { height: 12px; border-radius: 3px; background: #2c2c34; }
.mock--agenda aside b:first-child { background: var(--red); width: 70%; }
.mock__cal { flex: 1; display: grid; grid-template-columns: repeat(5, 1fr); gap: 9px; }
.mock__cal i { border-radius: 5px; background: #26262d; }
.mock__cal i.on { background: linear-gradient(135deg, var(--red), #7d0403); animation: pulse 3s ease-in-out infinite; }
.mock__cal i.on:nth-child(5) { animation-delay: .6s; }
.mock__cal i.on:nth-child(9) { animation-delay: 1.2s; }
.mock__cal i.on:nth-child(12) { animation-delay: 1.8s; }
@keyframes pulse { 50% { opacity: .45; } }

.mock--chart { flex-direction: column; }
.mock__kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.mock__kpis b { height: 44px; border-radius: 6px; background: #26262d; border-left: 3px solid var(--red); }
.mock__bars { flex: 1; display: flex; align-items: flex-end; gap: 12px; padding-top: 8px; border-bottom: 1px solid var(--line); }
.mock__bars i { flex: 1; height: var(--h); background: linear-gradient(var(--red-hi), #7d0403); border-radius: 4px 4px 0 0; transform-origin: bottom; transform: scaleY(0); transition: transform 1.1s var(--ease) .3s; }
.is-in .mock__bars i { transform: none; }
.mock__bars i:nth-child(2) { transition-delay: .38s; } .mock__bars i:nth-child(3) { transition-delay: .46s; }
.mock__bars i:nth-child(4) { transition-delay: .54s; } .mock__bars i:nth-child(5) { transition-delay: .62s; }
.mock__bars i:nth-child(6) { transition-delay: .7s; } .mock__bars i:nth-child(7) { transition-delay: .78s; }

.mock--cams { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cam { position: relative; border-radius: 6px; overflow: hidden; background: repeating-linear-gradient(135deg, #24242b 0 12px, #202026 12px 24px); border: 1px solid var(--line); }
.cam::after { content: ""; position: absolute; left: 0; right: 0; height: 30%; background: linear-gradient(transparent, rgba(255, 255, 255, .06), transparent); animation: scan 3.4s linear infinite; }
@keyframes scan { from { top: -30%; } to { top: 100%; } }
.cam em { position: absolute; top: 9px; right: 9px; width: 9px; height: 9px; border-radius: 50%; background: #2fd16b; box-shadow: 0 0 10px #2fd16b; }
.cam--off em { background: var(--red-hi); box-shadow: 0 0 10px var(--red-hi); animation: pulse 1.2s infinite; }
.cam u { position: absolute; left: 9px; bottom: 7px; text-decoration: none; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: #c9c9d0; }

/* ----- Proceso ----- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: s; border-top: 1px solid var(--line); }
.steps li { position: relative; padding: 34px 26px 10px 0; }
.steps li::before { content: ""; position: absolute; top: -1px; left: 0; height: 2px; width: 100%; background: var(--red); transform: scaleX(0); transform-origin: left; transition: transform 1.2s var(--ease); transition-delay: var(--delay, 0s); }
.steps li.is-in::before { transform: scaleX(.55); }
.steps span { font-family: var(--display); font-weight: 800; font-size: 3.6rem; line-height: 1; color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .3); }
.steps h3 { margin: 16px 0 10px; }
.steps p { color: var(--muted); }

/* ----- FS Import ----- */
.shop {
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  background: var(--red); padding: clamp(36px, 6vw, 72px); position: relative; overflow: hidden;
}
.shop::before {
  content: ""; position: absolute; inset: 0; opacity: .14;
  background: repeating-linear-gradient(-45deg, #000 0 2px, transparent 2px 22px);
}
.shop > * { position: relative; }
.shop .eyebrow { color: #fff; } .shop .eyebrow::before { background: #fff; }
.shop p:not(.eyebrow) { margin: 16px 0 30px; max-width: 480px; color: rgba(255, 255, 255, .9); font-size: 1.12rem; }
.shop__badge { flex: none; width: clamp(150px, 20vw, 230px); aspect-ratio: 1; border: 3px solid #fff; display: grid; place-content: center; text-align: center; animation: float 5s ease-in-out infinite; }
.shop__badge span { font-family: var(--display); font-weight: 800; font-size: clamp(4rem, 9vw, 7rem); line-height: .85; }
.shop__badge small { font-weight: 300; letter-spacing: .34em; font-size: clamp(.8rem, 1.6vw, 1.15rem); margin-right: -.34em; }
@keyframes float { 50% { transform: translateY(-12px) rotate(2deg); } }

/* ----- Contacto ----- */
.contact { text-align: center; overflow: hidden; }
.contact::before {
  content: ""; position: absolute; left: 50%; bottom: -480px; width: 1000px; height: 800px; translate: -50% 0; pointer-events: none;
  background: radial-gradient(circle, rgba(204, 6, 5, .28), transparent 62%);
}
.contact .eyebrow::after { content: ""; width: 28px; height: 2px; background: var(--red); }
.contact__title { font-size: clamp(2.8rem, 8.4vw, 7rem); font-weight: 800; line-height: .95; }
.contact__title em { font-style: normal; color: var(--red-hi); }
.contact .section__lead { margin-inline: auto; }
.contact__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 44px; position: relative; }

/* ----- Footer ----- */
.footer { border-top: 1px solid var(--line); padding: 30px 0; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer p { color: var(--muted); font-size: .9rem; }

/* ----- Responsive ----- */
@media (max-width: 960px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .card--wide { grid-column: span 2; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .project, .project--flip { grid-template-columns: 1fr; }
  .project--flip .project__visual { order: 0; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed; inset: 0; background: rgba(11, 11, 13, .97);
    flex-direction: column; justify-content: center; gap: 30px;
    clip-path: circle(0 at calc(100% - 42px) 42px); transition: clip-path .7s var(--ease);
  }
  .nav__links.is-open { clip-path: circle(150% at calc(100% - 42px) 42px); }
  .nav__links a:not(.btn) { font-family: var(--display); font-size: 2.2rem; font-weight: 700; color: var(--text); }
  .grid { grid-template-columns: 1fr; }
  .card--wide { grid-column: auto; }
  .steps { grid-template-columns: 1fr; }
  .shop { flex-direction: column; align-items: flex-start; }
  .shop__badge { display: none; }
  .btn--big { width: 100%; }
  .logo__text b { font-size: 20px; } .logo__text small { font-size: 10.1px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .reveal, .hero-in { opacity: 1; transform: none; }
}