/* ===== Tokens ===== */
:root {
  --negro:#10130f; --negro-2:#1a1f17; --crema:#f4f3ea;
  --verde:#1f7a3d; --verde-claro:#3fb964; --amarillo:#f4c416; --amarillo-vivo:#ffd528;
  /* tema (dark por defecto) */
  --bg:#10130f; --text:#f4f3ea; --muted:#c3c6ba; --soft:#a9ac9f;
  --line:rgba(244,243,234,.12);
  --glass-bg:rgba(244,243,234,.06);
  --glass-brd:rgba(244,243,234,.14);
  --glass-hi:rgba(255,255,255,.18);
  --glass-sh:0 18px 50px -20px rgba(0,0,0,.65);
  --blob-a:rgba(63,185,100,.32); --blob-b:rgba(244,196,22,.26); --blob-c:rgba(31,122,61,.30);
}
html[data-theme="light"] {
  --bg:#eef0e6; --text:#10130f; --muted:#46503e; --soft:#5c6450;
  --line:rgba(16,19,15,.12);
  --glass-bg:rgba(255,255,255,.5);
  --glass-brd:rgba(255,255,255,.7);
  --glass-hi:rgba(255,255,255,.9);
  --glass-sh:0 18px 50px -22px rgba(31,122,61,.28);
  --blob-a:rgba(63,185,100,.4); --blob-b:rgba(244,196,22,.42); --blob-c:rgba(31,122,61,.3);
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family:"Inter",system-ui,sans-serif; background:var(--bg); color:var(--text);
  line-height:1.55; -webkit-font-smoothing:antialiased; overflow-x:hidden; position:relative;
  transition:background .4s ease,color .4s ease;
}
h1,h2,h3 { font-family:"Sora",system-ui,sans-serif; font-weight:800; letter-spacing:-.02em; line-height:1.05; }
a { text-decoration:none; color:inherit; }
img,svg { display:block; }
.wrap { max-width:1180px; margin:0 auto; padding:0 28px; }
.eyebrow { font-size:.72rem; letter-spacing:.28em; text-transform:uppercase; color:var(--amarillo); font-weight:700; }

/* ===== Ambient blobs (refracción del cristal) ===== */
.ambient { position:fixed; inset:0; z-index:-1; overflow:hidden; }
.blob { position:absolute; border-radius:50%; filter:blur(90px); opacity:.9; }
.b1 { width:46vw; height:46vw; background:var(--blob-a); top:-10vw; right:-8vw; }
.b2 { width:40vw; height:40vw; background:var(--blob-b); bottom:-12vw; left:-6vw; }
.b3 { width:34vw; height:34vw; background:var(--blob-c); top:38%; left:42%; }

/* ===== Glass ===== */
.glass {
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  backdrop-filter:blur(20px) saturate(1.4);
  border:1px solid var(--glass-brd);
  border-radius:20px;
  box-shadow:var(--glass-sh), inset 0 1px 0 var(--glass-hi);
}

/* ===== Buttons ===== */
.btn { display:inline-flex; align-items:center; gap:9px; padding:14px 26px; border-radius:50px;
  font-weight:700; font-size:.95rem; transition:transform .18s,box-shadow .18s,border-color .2s; cursor:pointer; }
.btn-amarillo { background:var(--amarillo); color:var(--negro); box-shadow:0 8px 30px rgba(244,196,22,.28); }
.btn-amarillo:hover { transform:translateY(-2px); box-shadow:0 12px 38px rgba(244,196,22,.45); }
.btn-ghost { border:1px solid var(--glass-brd); color:var(--text); -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px); }
.btn-ghost:hover { border-color:var(--verde-claro); color:var(--verde-claro); }

/* ===== Header ===== */
.site-header { position:fixed; top:0; left:0; right:0; z-index:50;
  -webkit-backdrop-filter:blur(16px) saturate(1.4); backdrop-filter:blur(16px) saturate(1.4);
  background:color-mix(in srgb, var(--bg) 70%, transparent); border-bottom:1px solid var(--line); }
.nav { display:flex; align-items:center; justify-content:space-between; height:68px; }
.brand { display:flex; align-items:center; gap:11px; font-weight:800; letter-spacing:.02em; font-family:"Sora",sans-serif; }
.logo-mark { width:34px; height:34px; flex:none; filter:drop-shadow(0 3px 8px rgba(63,185,100,.3)); }
.brand-txt { display:flex; flex-direction:column; line-height:1.1; font-size:.98rem; }
.brand-txt small { color:var(--soft); font-weight:500; font-size:.62rem; letter-spacing:.16em; text-transform:uppercase; }
.navlinks { display:flex; gap:26px; align-items:center; }
.navlinks > a { color:var(--text); font-size:.85rem; opacity:.8; transition:opacity .2s; }
.navlinks > a:hover { opacity:1; }
.nav-actions { display:flex; align-items:center; gap:10px; }
.lang-toggle { display:flex; align-items:center; gap:.2rem; background:transparent; border:1px solid var(--glass-brd);
  border-radius:50px; padding:.3rem .6rem; font-weight:700; font-size:.74rem; color:var(--soft); cursor:pointer; }
.lang-opt.active { color:var(--amarillo); }
.sep { opacity:.4; }
.theme-toggle { display:grid; place-items:center; width:36px; height:36px; border-radius:50%;
  border:1px solid var(--glass-brd); background:var(--glass-bg); color:var(--text); cursor:pointer; transition:transform .3s,border-color .2s; }
.theme-toggle:hover { transform:rotate(15deg); border-color:var(--amarillo); }
.theme-toggle svg { stroke:currentColor; fill:none; }
.i-moon { display:none; }
html[data-theme="light"] .i-sun { display:none; }
html[data-theme="light"] .i-moon { display:block; fill:currentColor; stroke:none; }
.navbtn { background:var(--amarillo); color:var(--negro); padding:9px 18px; border-radius:50px; font-weight:700; }
.menu-toggle { display:none; background:none; border:0; color:var(--text); font-size:1.5rem; cursor:pointer; }

/* ===== Hero ===== */
.hero { position:relative; min-height:100vh; display:flex; align-items:center; padding-top:68px; overflow:hidden; }
.oilfield { position:absolute; inset:0; z-index:0; width:100%; height:100%; }
.hero-shade { content:""; position:absolute; inset:0; z-index:1;
  background:linear-gradient(90deg,var(--negro) 6%,rgba(16,19,15,.78) 42%,rgba(16,19,15,.35) 100%),linear-gradient(0deg,var(--negro),transparent 55%); }
html[data-theme="light"] .hero-shade { background:linear-gradient(90deg,rgba(238,240,230,.9) 6%,rgba(238,240,230,.55) 45%,rgba(238,240,230,.15) 100%),linear-gradient(0deg,rgba(238,240,230,.85),transparent 60%); }
.hero-inner { position:relative; z-index:2; width:100%; }
.hero-grid { display:grid; grid-template-columns:1.15fr .85fr; gap:40px; align-items:center; }
.hero h1 { font-size:clamp(2.6rem,6vw,5rem); margin:18px 0 22px; color:var(--text); }
.hero h1 .g { color:var(--amarillo); } .hero h1 .v { color:var(--verde-claro); }
.lede { font-size:1.12rem; color:var(--muted); max-width:520px; margin-bottom:30px; }
.cta-row { display:flex; gap:14px; flex-wrap:wrap; }
.hero-card { padding:26px; }
.hero-card .tag { font-size:.7rem; letter-spacing:.2em; text-transform:uppercase; color:var(--verde-claro); font-weight:700; }
.hero-card h3 { font-size:1.25rem; margin:8px 0 14px; color:var(--text); }
.hero-card ul { list-style:none; }
.hero-card li { display:flex; gap:11px; align-items:flex-start; padding:10px 0; border-top:1px solid var(--line); font-size:.92rem; color:var(--muted); }
.hero-card li:first-of-type { border-top:0; }
.dot { width:7px; height:7px; border-radius:50%; background:var(--amarillo); margin-top:8px; flex:none; }
.dot.v { background:var(--verde-claro); }

/* ===== Strip ===== */
.strip { margin:0; border-radius:0; border-left:0; border-right:0; }
.strip-inner { display:flex; flex-wrap:wrap; gap:14px 34px; padding:20px 28px; align-items:center; }
.strip span { font-size:.82rem; color:var(--soft); display:flex; align-items:center; gap:6px; }
.strip b { color:var(--text); font-weight:700; }
.pill { font-size:.66rem; letter-spacing:.14em; text-transform:uppercase; background:rgba(63,185,100,.16); color:var(--verde-claro); padding:4px 11px; border-radius:50px; font-weight:700; }

/* ===== Sections ===== */
.section { padding:96px 0; }
.sec-head { max-width:640px; margin-bottom:52px; }
.sec-head h2 { font-size:clamp(2rem,4vw,3.1rem); margin:14px 0; color:var(--text); }
.sec-head p { color:var(--muted); font-size:1.05rem; }

/* servicios */
.svc-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.svc { position:relative; padding:30px 26px; overflow:hidden; transition:transform .25s,border-color .25s; }
.svc:hover { transform:translateY(-5px); border-color:var(--amarillo); }
.svc .num { font-size:.72rem; color:var(--soft); letter-spacing:.2em; font-weight:700; }
.svc .ico { width:46px; height:46px; border-radius:11px; margin:16px 0; display:flex; align-items:center; justify-content:center; background:linear-gradient(140deg,var(--amarillo),var(--verde-claro)); }
.svc .ico svg { width:24px; height:24px; }
.svc h3 { font-size:1.3rem; margin-bottom:10px; color:var(--text); }
.svc p { color:var(--muted); font-size:.94rem; }
.svc .line { position:absolute; left:0; top:0; height:3px; width:0; background:linear-gradient(90deg,var(--amarillo),var(--verde-claro)); transition:width .35s; }
.svc:hover .line { width:100%; }

/* quiénes somos */
.veh-grid { display:grid; grid-template-columns:1fr 1fr; gap:54px; align-items:center; }
.veh-grid h2 { font-size:clamp(2rem,4vw,3rem); margin:14px 0 20px; color:var(--text); }
.veh-grid > div > p { color:var(--muted); margin-bottom:18px; }
.points { list-style:none; margin-top:24px; }
.points li { display:flex; gap:14px; padding:14px 0; border-top:1px solid var(--line); }
.points .k { width:34px; height:34px; flex:none; border-radius:9px; font-weight:800; display:flex; align-items:center; justify-content:center; color:var(--negro); background:var(--amarillo); }
.points li:nth-child(even) .k { background:var(--verde-claro); }
.points h4 { font-size:1rem; margin-bottom:3px; color:var(--text); }
.points span { color:var(--soft); font-size:.9rem; }
.visual { aspect-ratio:1/1; border-radius:24px; position:relative; overflow:hidden;
  background:radial-gradient(circle at 30% 20%,rgba(244,196,22,.22),transparent 55%),radial-gradient(circle at 75% 80%,rgba(31,122,61,.4),transparent 55%); }
.visual .grid-bg { position:absolute; inset:0; background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px); background-size:42px 42px; mask:radial-gradient(circle at center,#000 40%,transparent 78%); -webkit-mask:radial-gradient(circle at center,#000 40%,transparent 78%); }
.visual .core { position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); text-align:center; }
.visual .core .big { font-size:3.4rem; font-weight:800; font-family:"Sora"; color:var(--amarillo); line-height:1; }
.visual .core .sub { color:var(--verde-claro); font-weight:700; letter-spacing:.18em; font-size:.74rem; text-transform:uppercase; margin-top:8px; }

/* productos */
.prod-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:18px; }
.prod { display:flex; gap:20px; padding:26px; transition:transform .25s,border-color .25s; }
.prod:hover { transform:translateY(-4px); border-color:var(--verde-claro); }
.prod .emblem { width:58px; height:58px; flex:none; border-radius:13px; display:flex; align-items:center; justify-content:center; background:rgba(244,196,22,.14); border:1px solid rgba(244,196,22,.3); }
.prod:nth-child(even) .emblem { background:rgba(63,185,100,.14); border-color:rgba(63,185,100,.3); }
.prod .emblem svg { width:28px; height:28px; }
.prod h3 { font-size:1.18rem; margin-bottom:8px; color:var(--text); }
.prod p { color:var(--muted); font-size:.92rem; }

/* contacto */
.final { padding:60px 0 96px; }
.final-card { text-align:center; padding:64px 32px; position:relative; overflow:hidden;
  background:linear-gradient(120deg,rgba(31,122,61,.5),rgba(16,19,15,.2)); }
.final-card .eyebrow { color:var(--amarillo); }
.final-card h2 { font-size:clamp(2rem,4.5vw,3.2rem); margin:14px 0 18px; color:var(--text); max-width:760px; margin-inline:auto; }
.final-card > p { color:var(--muted); max-width:560px; margin:0 auto 30px; font-size:1.08rem; }
.contact-extra { margin-top:24px; display:flex; flex-direction:column; gap:8px; align-items:center; }
.contact-extra a { color:var(--amarillo); font-weight:700; font-size:1.05rem; }
.contact-extra a:hover { text-decoration:underline; }
.contact-extra span { color:var(--muted); font-size:.9rem; max-width:560px; line-height:1.5; }

/* footer */
.site-footer { border-top:1px solid var(--line); padding:54px 0 34px; }
.foot-grid { display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:34px; margin-bottom:36px; }
.foot-brand .brand { margin-bottom:14px; }
.foot-brand p { color:var(--soft); font-size:.92rem; max-width:320px; }
.site-footer h4 { font-size:.74rem; letter-spacing:.2em; text-transform:uppercase; color:var(--soft); margin-bottom:16px; }
.site-footer .foot-grid a { color:var(--muted); display:block; padding:5px 0; font-size:.92rem; }
.site-footer .foot-grid a:hover { color:var(--amarillo); }
.foot-bottom { border-top:1px solid var(--line); padding-top:22px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; color:var(--soft); font-size:.82rem; }

/* reveal */
.reveal { opacity:0; transform:translateY(26px); transition:opacity .7s ease,transform .7s ease; }
.reveal.in { opacity:1; transform:none; }

/* animaciones campo */
.walk { animation:rock 4s ease-in-out infinite; transform-origin:130px 110px; }
.pump2 .walk { animation-duration:3.1s; animation-delay:-1s; }
@keyframes rock { 0%,100%{transform:rotate(7deg)} 50%{transform:rotate(-7deg)} }
.flare { transform-origin:434px 630px; animation:flame 1.1s ease-in-out infinite; }
@keyframes flame { 0%,100%{transform:scaleY(1) scaleX(1)} 50%{transform:scaleY(1.18) scaleX(.9)} }

@media (max-width:880px) {
  .hero-grid,.veh-grid { grid-template-columns:1fr; gap:34px; }
  .svc-grid,.prod-grid,.foot-grid { grid-template-columns:1fr; }
  .navlinks { display:none; position:absolute; top:68px; left:0; right:0; flex-direction:column; gap:0;
    background:var(--bg); border-bottom:1px solid var(--line); padding:10px 28px 18px; }
  .navlinks.open { display:flex; }
  .navlinks > a { padding:12px 0; opacity:1; }
  .nav-actions { padding-top:10px; }
  .menu-toggle { display:block; }
  .section { padding:70px 0; }
}
@media (prefers-reduced-motion:reduce) {
  *{ animation:none !important; scroll-behavior:auto; } .reveal{ opacity:1; transform:none; }
}