:root {
  --red-900: #7d0815;
  --red-700: #a30d1e;
  --red-500: #e8243f;
  --red-50: #fdf0f2;
  --ink: #16171d;
  --ink-soft: #4a4d5a;
  --muted: #6b6e7a;
  --line: #e4e5ea;
  --tint: #f5f5f7;
  --white: #fff;
  --dark: #111218;
  --dark-2: #1b1c24;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow: 0 1px 2px rgba(16,17,24,.04), 0 12px 32px -12px rgba(16,17,24,.14);
  --shadow-lg: 0 2px 4px rgba(16,17,24,.04), 0 30px 60px -24px rgba(16,17,24,.28);
  --wrap: 1280px;
  --gutter: clamp(20px, 4vw, 56px);
  --head: "Archivo", "Arial Black", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --header-h: 76px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 400 1rem/1.7 var(--body);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.nav-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--red-700); }
h1, h2, h3 { font-family: var(--head); line-height: 1.08; margin: 0 0 .55em; letter-spacing: -.02em; text-wrap: balance; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4.2rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 800; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
:focus-visible { outline: 2px solid var(--red-500); outline-offset: 3px; }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; z-index: 100; border-radius: 8px; }
.skip:focus { left: 8px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 600 .76rem/1 var(--body);
  text-transform: uppercase; letter-spacing: .12em;
  color: var(--red-700); background: var(--red-50);
  padding: 8px 14px; border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--red-500); flex: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 .95rem/1 var(--body);
  min-height: 50px; padding: 0 26px;
  background: var(--red-700); color: #fff; text-decoration: none;
  border: 1.5px solid var(--red-700); border-radius: 999px;
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s, transform .2s var(--ease), box-shadow .2s;
  box-shadow: 0 10px 24px -10px rgba(163,13,30,.6);
}
.btn:hover { background: var(--red-900); border-color: var(--red-900); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: rgba(22,23,29,.25); box-shadow: none; }
.btn-ghost:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-sm { min-height: 42px; padding: 0 20px; font-size: .9rem; }
.link { font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.link::after { content: "→"; transition: transform .2s var(--ease); }
.link:hover::after { transform: translateX(4px); }

/* HEADER */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.82);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 10px 30px -18px rgba(0,0,0,.3); }
.header-inner { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: block; flex: none; }
.brand img { height: 44px; width: auto; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a:not(.btn) {
  color: var(--ink); text-decoration: none; font-weight: 500; font-size: .95rem;
  padding: 8px 14px; border-radius: 999px; transition: background .2s, color .2s;
}
.nav a:not(.btn):hover { background: var(--tint); color: var(--red-700); }
.nav .btn { margin-left: 10px; }
.nav-toggle {
  display: none; width: 46px; height: 46px; padding: 0; border-radius: 12px;
  background: var(--tint); border: 0; cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column;
}
.nav-toggle span { display: block; width: 20px; height: 2px; border-radius: 2px; background: var(--ink); margin: 2.5px 0; transition: transform .25s var(--ease), opacity .2s; }

/* HERO */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  background: var(--dark); color: #fff;
  min-height: calc(100vh - var(--header-h)); min-height: calc(100svh - var(--header-h));
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: clamp(64px, 10vh, 120px) 0 clamp(28px, 5vh, 48px);
}
.hero-media { position: absolute; inset: 0; margin: 0; z-index: -1; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 50%; animation: heroZoom 18s ease-out both; }
.hero-media::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 70% at 0% 100%, rgba(163,13,30,.55), transparent 70%),
    linear-gradient(90deg, rgba(17,18,24,.94) 0%, rgba(17,18,24,.78) 42%, rgba(17,18,24,.25) 100%);
}
@keyframes heroZoom { from { transform: scale(1.1); } to { transform: scale(1); } }
.hero-inner { position: relative; flex: 1; display: flex; align-items: center; }
.hero-copy { max-width: 720px; }
.hero .eyebrow { color: #fff; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.hero h1 { color: #fff; }
.hero h1 span {
  background: linear-gradient(90deg, #ff4d63, var(--red-500));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: clamp(1.02rem, 1.4vw, 1.18rem); color: rgba(255,255,255,.78); max-width: 36em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero .btn-ghost { color: #fff; border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.06); }
.hero .btn-ghost:hover { background: #fff; color: var(--ink); border-color: #fff; }

.stats {
  list-style: none; margin: clamp(48px, 8vh, 88px) 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.stats li {
  padding: 22px 24px; border-radius: var(--radius);
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
.stats strong { display: block; font: 800 clamp(1.4rem, 2.4vw, 1.9rem)/1.1 var(--head); color: #fff; letter-spacing: -.02em; }
.stats span { font-size: .86rem; color: rgba(255,255,255,.7); }

/* SECTIONS */
.section { padding: clamp(80px, 10vw, 136px) 0; }
.section-tint { background: var(--tint); }
.section-lead { color: var(--ink-soft); max-width: 46em; margin-bottom: 40px; font-size: 1.05rem; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 88px); align-items: center; }
.split-media { margin: 0; position: relative; }
.split-media img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.split-media::after {
  content: ""; position: absolute; z-index: -1; right: -18px; bottom: -18px; width: 55%; height: 55%;
  border-radius: var(--radius-lg); background: linear-gradient(135deg, var(--red-500), var(--red-900));
}
.split-rev .split-media { isolation: isolate; }
.portrait img { aspect-ratio: 1; object-fit: cover; }

.card {
  background: var(--white); border: 1px solid var(--line); padding: 32px;
  border-radius: var(--radius-lg); box-shadow: var(--shadow);
  transition: transform .3s var(--ease), box-shadow .3s;
}

/* NOSOTROS + CARRUSEL */
.about {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(32px, 5vw, 80px); align-items: center;
  max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto;
  padding: clamp(80px, 10vw, 136px) var(--gutter);
}
.about > * { min-width: 0; }
.slider {
  position: relative; overflow: hidden; background: var(--dark);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3.6; min-height: 380px;
}
.slides { position: absolute; inset: 0; }
.slide { position: absolute; inset: 0; margin: 0; opacity: 0; visibility: hidden; transition: opacity 1s ease, visibility 0s 1s; }
.slide.is-active { opacity: 1; visibility: visible; transition: opacity 1s ease; }
.slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); transition: transform 7s ease-out; }
.slide.is-active img { transform: scale(1); }
.slide::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(17,18,24,.85) 0, rgba(17,18,24,0) 45%); }
.slide figcaption {
  position: absolute; left: 28px; right: 28px; bottom: 84px; z-index: 1;
  color: #fff; font: 600 1.02rem/1.35 var(--body); padding-left: 14px; border-left: 3px solid var(--red-500);
  opacity: 0; transform: translateY(10px); transition: opacity .6s .5s, transform .6s .5s;
}
.slide.is-active figcaption { opacity: 1; transform: none; }
.slider-ui { position: absolute; left: 28px; right: 28px; bottom: 24px; z-index: 3; display: flex; align-items: center; gap: 14px; }
.slider-btn {
  width: 42px; height: 42px; flex: none; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.35); background: rgba(17,18,24,.35);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer; transition: background .2s, border-color .2s;
}
.slider-btn:hover { background: var(--red-700); border-color: var(--red-700); }
.slider-btn svg { width: 18px; height: 18px; fill: none; stroke: #fff; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.slider-dots { display: flex; gap: 6px; }
.slider-dots button {
  width: 22px; height: 4px; padding: 0; border: 0; border-radius: 2px; background: rgba(255,255,255,.4); cursor: pointer;
  position: relative; overflow: hidden; transition: width .3s var(--ease);
}
.slider-dots button[aria-current="true"] { width: 44px; }
.slider-dots button[aria-current="true"]::after {
  content: ""; position: absolute; inset: 0; background: #fff; transform-origin: left; animation: progress var(--slide-ms, 5500ms) linear forwards;
}
.slider.paused .slider-dots button::after { animation-play-state: paused; }
.slider button:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
@keyframes progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.about-copy > div { max-width: 600px; }
.about-copy p { color: var(--ink-soft); }
.about-copy strong { color: var(--ink); }

.bases { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.bases li {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px; background: var(--tint); border-radius: var(--radius);
  font-weight: 600; font-size: .95rem; line-height: 1.3;
}
.bases li::before {
  content: ""; flex: none; width: 30px; height: 30px; border-radius: 9px;
  background: var(--red-700) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 21s-7-6.2-7-11.5a7 7 0 0 1 14 0C19 14.8 12 21 12 21Z'/%3E%3Ccircle cx='12' cy='9.5' r='2.5'/%3E%3C/svg%3E") center / 16px no-repeat;
}
.bases a { color: var(--red-700); text-decoration: underline; text-underline-offset: 3px; }
.bases a:hover { color: var(--red-900); }

/* MISIÓN VISIÓN */
.mv-grid { display: grid; grid-template-columns: 1fr 1fr .85fr; gap: 20px; margin-top: 20px; }
.mv .card h3 { color: var(--ink); display: flex; align-items: center; gap: 12px; }
.mv .card h3::before { content: ""; width: 28px; height: 4px; border-radius: 2px; background: var(--red-500); }
.mv .card p { color: var(--ink-soft); margin: 0; }
.mv-img { margin: 0; border-radius: var(--radius-lg); overflow: hidden; min-height: 240px; }
.mv-img img { width: 100%; height: 100%; object-fit: cover; }

/* SERVICIOS */
.services { display: grid; grid-template-columns: 290px 1fr; gap: 24px; align-items: start; }
.services > *, .srv-panel > *, .split > *, .contact-grid > * { min-width: 0; }
.srv-tabs {
  display: flex; flex-direction: column; gap: 4px;
  background: var(--tint); padding: 8px; border-radius: var(--radius-lg);
  position: sticky; top: calc(var(--header-h) + 20px);
}
.srv-tabs button {
  text-align: left; background: none; border: 0; border-radius: 12px;
  padding: 13px 16px; font: 600 .95rem/1.3 var(--body); color: var(--ink-soft); cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  transition: background .2s, color .2s, box-shadow .2s;
}
.srv-tabs button::after { content: "→"; opacity: 0; transform: translateX(-6px); transition: opacity .2s, transform .2s var(--ease); }
.srv-tabs button:hover { color: var(--ink); background: rgba(255,255,255,.7); }
.srv-tabs button[aria-selected="true"] { background: var(--white); color: var(--red-700); box-shadow: var(--shadow); }
.srv-tabs button[aria-selected="true"]::after { opacity: 1; transform: none; }
.srv-tabs button:focus-visible { outline: 2px solid var(--red-500); outline-offset: -2px; }
.srv-panels { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.srv-panel { display: grid; grid-template-columns: 300px 1fr; gap: 36px; padding: 28px; animation: fade .35s var(--ease); }
.srv-panel[hidden] { display: none; }
.srv-panel img { width: 100%; height: 100%; min-height: 280px; max-height: 520px; object-fit: cover; border-radius: var(--radius); }
.srv-panel h3 { font-size: clamp(1.4rem, 2.2vw, 1.75rem); color: var(--ink); margin-top: 6px; }
.srv-panel h3::after {
  content: "Procesos bajo Certificación ISO 9001:2015";
  display: table; margin-top: 12px; padding: 6px 12px; border-radius: 999px;
  font: 600 .78rem/1.3 var(--body); letter-spacing: 0; color: #1d7a3e; background: #e9f6ee;
}
.srv-list { list-style: none; margin: 0; padding: 0; }
.srv-list > li { padding: 13px 0 13px 32px; border-bottom: 1px solid var(--line); position: relative; color: var(--ink-soft); }
.srv-list > li:last-child { border-bottom: 0; }
.srv-list > li::before {
  content: ""; position: absolute; left: 0; top: 17px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--red-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a30d1e' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 11px no-repeat;
}
.srv-list ul { margin: 8px 0 0; padding-left: 18px; }
.srv-list ul li { margin: 4px 0; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* CALIDAD */
.section-dark { background: var(--dark); color: #c9cad2; position: relative; overflow: hidden; isolation: isolate; }
.section-dark::before {
  content: ""; position: absolute; z-index: -1; right: -10%; top: -30%; width: 60%; height: 90%;
  background: radial-gradient(closest-side, rgba(232,36,63,.28), transparent);
}
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark .eyebrow { color: #ff8a99; background: rgba(232,36,63,.12); }
.certs { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 28px; }
.cert {
  display: grid; grid-template-columns: 150px 1fr; gap: 28px; padding: 28px;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.09); border-radius: var(--radius-lg);
  transition: border-color .3s, background .3s;
}
.cert:hover { border-color: rgba(232,36,63,.45); background: rgba(255,255,255,.06); }
.cert-thumb { display: block; align-self: start; border-radius: 10px; overflow: hidden; box-shadow: 0 16px 34px rgba(0,0,0,.5); transition: transform .3s var(--ease); }
.cert-thumb:hover { transform: translateY(-4px) rotate(-1deg); }
.cert p { font-size: .95rem; }
.cert-meta { color: #ff8a99; font-weight: 600; font-size: .88rem !important; }
.cert-data { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin: 20px 0 24px; }
.cert-data div { background: rgba(255,255,255,.05); border-radius: 12px; padding: 10px 14px; }
.cert-data dt { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: #8e909c; }
.cert-data dd { margin: 2px 0 0; color: #fff; font-weight: 600; font-size: .92rem; line-height: 1.35; }
.section-dark .link { color: #fff; }

/* TIMELINE */
.timeline { list-style: none; padding: 0; margin: 32px 0 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 10px; bottom: 10px; width: 2px; background: linear-gradient(var(--red-500), var(--line)); }
.timeline li { position: relative; padding: 0 0 26px 44px; }
.timeline li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--white); border: 4px solid var(--red-500); box-shadow: 0 0 0 5px var(--red-50);
}
.timeline .year { display: block; font: 800 1.5rem/1 var(--head); color: var(--red-700); letter-spacing: -.02em; }
.timeline p { margin: 8px 0 0; color: var(--ink-soft); }

/* METAS */
.metas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 16px; }
.meta-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: linear-gradient(135deg, var(--red-500), var(--red-900));
  display: inline-flex; align-items: center; justify-content: center; margin-bottom: 22px;
  box-shadow: 0 12px 24px -10px rgba(163,13,30,.6);
}
.meta-icon svg { width: 26px; height: 26px; fill: none; stroke: #fff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.meta p { color: var(--ink-soft); margin: 0; }
.mv .card:hover, .meta:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

/* CONTACTO */
.contact { background: radial-gradient(70% 60% at 100% 0%, var(--red-50), transparent 70%), var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(40px, 6vw, 88px); align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 10px; }
.contact-list li { padding: 16px 18px; background: var(--tint); border-radius: var(--radius); display: flex; flex-direction: column; gap: 2px; }
.contact-list .label { font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.contact-list a { color: var(--ink); font-weight: 600; text-decoration: none; overflow-wrap: anywhere; }
.contact-list a:hover { color: var(--red-700); }
.contact-form { padding: clamp(24px, 3.5vw, 40px); box-shadow: var(--shadow-lg); }
.contact-form h3 { font-size: 1.5rem; margin-bottom: 22px; }
.contact-form label { display: block; font-weight: 600; font-size: .86rem; margin-bottom: 16px; }
.contact-form input, .contact-form select, .contact-form textarea {
  display: block; width: 100%; margin-top: 6px; padding: 13px 16px; min-height: 50px;
  font: 400 1rem/1.4 var(--body); color: var(--ink);
  border: 1.5px solid var(--line); border-radius: 12px; background: var(--tint);
  transition: border-color .2s, background .2s, box-shadow .2s;
  -webkit-appearance: none; appearance: none;
}
.contact-form select {
  padding-right: 44px;
  background: var(--tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234a4d5a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") right 14px center / 18px no-repeat;
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--red-500); background-color: var(--white); box-shadow: 0 0 0 4px rgba(232,36,63,.12);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.contact-form .btn { width: 100%; margin-top: 4px; }
.form-note { font-size: .88rem; margin: 12px 0 0; color: var(--muted); min-height: 1.2em; }
.form-note.error { color: var(--red-700); }
.form-note.ok { color: #1d7a3e; font-weight: 600; }
.contact-form .btn:disabled { opacity: .7; cursor: wait; transform: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* FOOTER */
.site-footer { background: var(--dark); color: #a4a6b0; padding: 56px 0 28px; }
.footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 28px 48px; align-items: center; }
.footer-brand img { height: 40px; width: auto; background: #fff; padding: 8px 12px; border-radius: 10px; box-sizing: content-box; margin-bottom: 16px; }
.footer-brand p { margin: 0; max-width: 32em; font-size: .92rem; }
.footer-nav { display: flex; gap: 8px 24px; flex-wrap: wrap; }
.footer-nav a { color: #fff; text-decoration: none; font-weight: 500; }
.footer-nav a:hover { color: var(--red-500); }
.copy { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,.08); padding-top: 22px; margin: 8px 0 0; font-size: .84rem; }
.copy a { color: #a4a6b0; }

/* APARICIÓN */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }

/* RESPONSIVE */
@media (max-width: 1100px) {
  .certs { grid-template-columns: 1fr; }
  .srv-panel { grid-template-columns: 240px 1fr; }
}

@media (max-width: 1000px) {
  .services { grid-template-columns: 1fr; gap: 16px; }
  .srv-tabs {
    position: static; flex-direction: row; overflow-x: auto; gap: 8px;
    background: none; padding: 2px 2px 6px; border-radius: 0;
    margin: 0 calc(-1 * var(--gutter)); padding-left: var(--gutter); padding-right: var(--gutter);
    scroll-padding: 0 var(--gutter); scrollbar-width: none;
  }
  .srv-tabs::-webkit-scrollbar { display: none; }
  .srv-tabs button { flex: 0 0 auto; white-space: nowrap; padding: 11px 18px; border-radius: 999px; background: var(--tint); }
  .srv-tabs button::after { display: none; }
  .srv-tabs button[aria-selected="true"] { background: var(--ink); color: #fff; box-shadow: none; }
  .mv-grid { grid-template-columns: 1fr 1fr; }
  .mv-img { display: none; }
}

@media (max-width: 860px) {
  :root { --header-h: 66px; }
  .brand img { height: 38px; }
  .nav-toggle { display: inline-flex; }
  .nav {
    /* el header tiene backdrop-filter, así que "fixed" se mide desde el header: alto explícito */
    position: fixed; top: var(--header-h); left: 0; right: 0;
    height: calc(100vh - var(--header-h)); height: calc(100dvh - var(--header-h));
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--white); padding: 20px var(--gutter) calc(28px + env(safe-area-inset-bottom));
    overflow-y: auto;
    opacity: 0; visibility: hidden; transform: translateY(-10px);
    transition: opacity .25s, transform .3s var(--ease), visibility 0s .3s;
  }
  .nav.open { opacity: 1; visibility: visible; transform: none; transition: opacity .25s, transform .3s var(--ease); }
  .nav a:not(.btn) { font: 700 1.5rem/1.2 var(--head); padding: 16px 4px; border-radius: 0; border-bottom: 1px solid var(--line); }
  .nav a:not(.btn):hover { background: none; }
  .nav .btn { margin: 20px 0 0; min-height: 54px; font-size: 1rem; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero { min-height: 0; padding-top: 72px; }
  .hero-media img { object-position: 70% 50%; }
  .hero-media::after {
    background:
      radial-gradient(80% 50% at 0% 100%, rgba(163,13,30,.5), transparent 70%),
      linear-gradient(180deg, rgba(17,18,24,.55) 0%, rgba(17,18,24,.85) 45%, rgba(17,18,24,.96) 100%);
  }
  .stats { grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 48px; }
  .stats li { padding: 18px; }

  .about { grid-template-columns: 1fr; padding-top: 64px; padding-bottom: 64px; }
  .slider { aspect-ratio: 4 / 3.6; min-height: 0; }
  .slide figcaption { left: 20px; right: 20px; bottom: 76px; font-size: .95rem; }
  .slider-ui { left: 20px; right: 20px; bottom: 20px; }

  .section { padding: 72px 0; }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .split-rev .split-media { order: -1; max-width: 440px; }
  .metas { grid-template-columns: 1fr; }
  .meta { display: grid; grid-template-columns: 56px 1fr; gap: 0 18px; align-items: start; }
  .meta-icon { grid-row: span 2; margin: 0; }
  .meta h3 { margin-bottom: 6px; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  :root { --gutter: 18px; --radius-lg: 20px; }
  body { font-size: .97rem; }
  .hero-cta .btn { flex: 1 1 100%; }
  .stats strong { font-size: 1.35rem; }
  .stats span { font-size: .8rem; line-height: 1.35; display: block; margin-top: 4px; }
  .mv-grid { grid-template-columns: 1fr; }
  .srv-panel { grid-template-columns: 1fr; padding: 16px 16px 8px; gap: 18px; }
  .srv-panel img { min-height: 0; aspect-ratio: 16 / 10; max-height: 240px; }
  .srv-panel > div { padding: 0 4px; }
  .bases { grid-template-columns: 1fr; }
  .card { padding: 24px; }
  .cert { grid-template-columns: 1fr; padding: 20px; gap: 20px; }
  .cert-thumb { max-width: 170px; }
  .form-row { grid-template-columns: 1fr; }
  .split-media::after { right: -10px; bottom: -10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}