/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #0b1118;
  --bg-2: #0f1822;
  --panel: #121d29;
  --line: #22303d;
  --ink: #e8eef4;
  --ink-2: #9fb0c0;
  --ink-3: #6b7d8e;
  --accent: #ffb547;        /* ámbar de sala de máquinas */
  --accent-2: #3dd6a3;      /* verde "sistema OK" */
  --danger: #ff6b6b;
  --cream: #0b1118;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Manrope", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --gutter: clamp(16px, 4vw, 48px);
  --maxw: 1120px;
  --r: 14px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  background: var(--bg); color: var(--ink);
  -webkit-font-smoothing: antialiased; overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.08; letter-spacing: -0.02em; }
::selection { background: var(--accent); color: var(--cream); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
code { font-family: var(--mono); font-size: .85em; background: var(--bg); padding: .1em .4em; border-radius: 6px; color: var(--accent); }

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link { position: fixed; top: -100px; left: 1rem; padding: .6rem 1rem; background: var(--accent); color: var(--cream); z-index: 9999; border-radius: 8px; font-weight: 700; }
.skip-link:focus { top: 1rem; }
.container { width: min(100% - 2 * var(--gutter), var(--maxw)); margin-inline: auto; }
.mono { font-family: var(--mono); font-size: .8rem; letter-spacing: .04em; text-transform: uppercase; }
.eyebrow { color: var(--accent); margin-bottom: .8rem; }
.lead { color: var(--ink-2); font-size: clamp(1.05rem, 1.6vw, 1.25rem); max-width: 60ch; margin: .8rem 0 2rem; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tags span { font-family: var(--mono); font-size: .72rem; padding: .25rem .55rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-2); }

/* =============================================================
   4. Typography
   ============================================================= */
h1 { font-family: var(--serif); font-weight: 300; font-size: clamp(2rem, 5.4vw, 4.1rem); }
h1 em { font-style: italic; color: var(--accent); }
h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.2rem; font-weight: 700; }
h4 { font-size: 1.02rem; font-weight: 700; margin-bottom: .4rem; }
.sub { margin: 3rem 0 1rem; font-family: var(--serif); font-weight: 600; font-size: 1.5rem; }

/* =============================================================
   5. Components
   ============================================================= */
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .85rem 1.4rem; border-radius: 999px; font-weight: 700; transition: transform .35s var(--ease-out), background .35s, box-shadow .35s; }
.btn-primary { background: var(--accent); color: var(--cream); box-shadow: 0 8px 28px -10px rgba(255,181,71,.6); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 34px -10px rgba(255,181,71,.7); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink-2); }
.btn-ghost:hover { border-color: var(--ink-3); color: var(--ink); }
.btn-big { padding: 1.1rem 2rem; font-size: 1.05rem; margin-top: 2rem; }

.top { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: .8rem var(--gutter); background: rgba(11,17,24,.75); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 4px rgba(61,214,163,.15); }
.nav { display: none; gap: 1.4rem; align-items: center; font-size: .92rem; color: var(--ink-2); }
.nav a:hover { color: var(--ink); }
.nav-cta { padding: .45rem 1rem; border-radius: 999px; background: var(--accent); color: var(--cream) !important; font-weight: 700; }

/* =============================================================
   6. Sections
   ============================================================= */
.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* Hero */
.hero { position: relative; padding: clamp(4rem, 10vw, 8rem) 0 clamp(3rem, 7vw, 5rem); overflow: hidden; }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 48px 48px; opacity: .35; mask-image: radial-gradient(ellipse at 30% 20%, #000 20%, transparent 70%); }
.hero-inner { position: relative; }
.hero-title { max-width: 18ch; }
.hero-sub { color: var(--ink-2); max-width: 62ch; margin: 1.4rem 0 2rem; font-size: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; }

.status { margin-top: 3rem; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 1rem 1.2rem; max-width: 760px; }
.status-head { display: flex; align-items: center; gap: .6rem; color: var(--ink-2); margin-bottom: .8rem; }
.status-note { text-transform: none; color: var(--ink-3); letter-spacing: 0; }
.led { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(61,214,163,.5);} 50% { box-shadow: 0 0 0 8px rgba(61,214,163,0);} }
.status-grid { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.status-grid .k { display: block; font-size: 1.7rem; color: var(--ink); text-transform: none; letter-spacing: 0; }
.status-grid .l { font-size: .82rem; color: var(--ink-3); }

/* Día */
.day { display: grid; gap: 1.2rem; }
.day-track { list-style: none; padding: 0; display: grid; gap: .3rem; position: relative; }
.day-step { display: flex; align-items: center; gap: .9rem; padding: .65rem .8rem; border-radius: 10px; border: 1px solid transparent; cursor: pointer; transition: background .3s, border-color .3s; }
.day-step .t { color: var(--ink-3); width: 3.6rem; }
.day-step .w { font-weight: 600; color: var(--ink-2); }
.day-step:hover { background: var(--panel); }
.day-step.is-active { background: var(--panel); border-color: var(--line); }
.day-step.is-active .t { color: var(--accent); }
.day-step.is-active .w { color: var(--ink); }
.day-panel { background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: var(--r); padding: 1.4rem; min-height: 140px; }
.day-panel-t { color: var(--accent); margin-bottom: .6rem; }
.day-panel-d { font-size: 1.1rem; color: var(--ink); }

/* Casos */
.cases { display: grid; gap: 1.2rem; }
.case { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 1.5rem; transition: transform .5s var(--ease-out), border-color .4s; }
.case:hover { transform: translateY(-3px); border-color: var(--ink-3); }
.case-head { margin-bottom: 1rem; }
.case-num { color: var(--accent); display: block; margin-bottom: .4rem; }
.case-tag { color: var(--ink-3); font-size: .9rem; }
.case-body { display: grid; gap: .3rem .9rem; }
.case-body dt { font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); margin-top: .7rem; }
.case-body dd { color: var(--ink-2); }
.case-intro { color: var(--ink-2); margin-bottom: 1rem; }
.method { list-style: none; padding: 0; display: grid; gap: .6rem; counter-reset: m; }
.method li { position: relative; padding: .8rem 1rem .8rem 1.1rem; border-left: 2px solid var(--line); color: var(--ink-2); }
.method li .mono { display: block; color: var(--accent); margin-bottom: .2rem; }
.case-foot { margin-top: 1.2rem; color: var(--ink-3); text-transform: none; letter-spacing: 0; }
.lab { display: grid; gap: 1.4rem; }
.lab p { color: var(--ink-2); margin-bottom: .6rem; }

.cta-band { margin-top: 3rem; padding: 2rem; border-radius: var(--r); background: linear-gradient(135deg, rgba(255,181,71,.12), rgba(61,214,163,.08)); border: 1px solid var(--line); display: grid; gap: 1rem; }
.cta-band p { font-family: var(--serif); font-size: 1.35rem; }

/* Stack */
.stack { display: grid; gap: 1.5rem; grid-template-columns: repeat(2, 1fr); }
.stack-col h3 { color: var(--accent); margin-bottom: .6rem; font-size: .8rem; }
.stack-col ul { list-style: none; padding: 0; color: var(--ink-2); display: grid; gap: .25rem; }

/* Timeline */
.timeline { list-style: none; padding: 0; display: grid; gap: 1.4rem; border-left: 1px solid var(--line); margin-left: .4rem; }
.timeline li { display: grid; gap: .3rem; padding-left: 1.4rem; position: relative; }
.timeline li::before { content: ""; position: absolute; left: -5px; top: .45rem; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }
.tl-year { color: var(--accent); }
.timeline p { color: var(--ink-2); }
.tl-pending { opacity: .55; }
.tl-pending::before { background: var(--ink-3) !important; }
.tl-pending h3, .tl-pending p, .tl-pending .tl-year { color: var(--ink-3); font-style: italic; }
.creds { list-style: none; padding: 0; display: grid; gap: .6rem; color: var(--ink-2); }
.creds li { display: grid; grid-template-columns: 4.6rem 1fr; gap: .6rem; }
.creds .mono { color: var(--accent); }

/* Contacto */
.contact-grid { display: grid; gap: .9rem; }
.contact-card { display: grid; gap: .3rem; padding: 1.2rem; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); transition: border-color .3s, transform .4s var(--ease-out); word-break: break-word; }
.contact-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.contact-static:hover { border-color: var(--line); transform: none; }
.contact-card .mono { color: var(--ink-3); }
.contact-card .small { font-size: .85rem; color: var(--ink-3); }

.foot { border-top: 1px solid var(--line); padding: 1.5rem 0; color: var(--ink-3); }
.foot-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }

/* =============================================================
   7. Effects (reveals)
   ============================================================= */
.is-ready [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.is-ready [data-reveal].in { opacity: 1; transform: none; }

/* =============================================================
   8. Responsive
   ============================================================= */
@media (min-width: 540px) { .status-grid { grid-template-columns: repeat(4, 1fr); } .contact-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 720px) {
  .nav { display: flex; }
  .day { grid-template-columns: 300px 1fr; align-items: start; }
  .day-panel { position: sticky; top: 90px; }
  .cases { grid-template-columns: repeat(2, 1fr); }
  .case-wide { grid-column: 1 / -1; }
  .lab { grid-template-columns: repeat(3, 1fr); }
  .cta-band { grid-template-columns: 1fr auto; align-items: center; }
}
@media (min-width: 960px) { .stack { grid-template-columns: repeat(4, 1fr); } }

/* =============================================================
   9. Reduced motion
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .led { animation: none; }
  html { scroll-behavior: auto; }
}