/* Alibi — its own identity: a noir case file.
   Deep ink chrome, paper-cream content, crimson accents, typewriter labels. */
:root {
  --ink: #17130F;          /* case-file black, warm */
  --ink-2: #241D17;
  --paper: #FAF7F1;        /* the app's dossier paper */
  --paper-2: #F1EADD;
  --crimson: #9E3A48;      /* Alibi accent */
  --crimson-lit: #C4535F;  /* on dark */
  --gold: #D9A441;         /* the report stars */
  --muted: #6B625A;
  --muted-lit: #A79C90;
  --hairline: rgba(23, 19, 15, 0.12);
  --hairline-lit: rgba(250, 247, 241, 0.16);
  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Karla", -apple-system, "Segoe UI", sans-serif;
  --mono: "Space Mono", ui-monospace, Menlo, monospace;
  --max-w: 1080px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper); color: var(--ink); font-family: var(--sans);
  font-size: 17px; line-height: 1.7; -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 26px; }
.narrow { max-width: 680px; }
::selection { background: var(--crimson); color: #fff; }
a { color: var(--crimson); text-underline-offset: 3px; }

/* Typewriter label — the app's monospaced chips, on the web */
.mono-label {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--crimson);
}
.hero .mono-label { color: var(--crimson-lit); }

/* ── Dark chrome ───────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(23, 19, 15, 0.94); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline-lit);
}
nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo {
  font-family: var(--serif); font-weight: 700; font-size: 1.35rem;
  letter-spacing: 0.06em; color: var(--paper); text-decoration: none;
}
.logo::after { content: "."; color: var(--crimson-lit); }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a {
  color: var(--muted-lit); text-decoration: none; font-size: 0.85rem;
  font-family: var(--mono); letter-spacing: .06em; text-transform: uppercase;
}
.nav-links a:hover { color: var(--paper); }

/* Hero: dark, with a faint floor-plan grid behind it */
header {
  background:
    linear-gradient(180deg, rgba(23,19,15,.86), var(--ink) 78%),
    repeating-linear-gradient(0deg, transparent 0 63px, rgba(250,247,241,.055) 63px 64px),
    repeating-linear-gradient(90deg, transparent 0 63px, rgba(250,247,241,.055) 63px 64px),
    var(--ink);
  color: var(--paper);
  padding: 92px 0 84px;
  border-bottom: 1px solid var(--hairline-lit);
}
.app-head { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.app-icon {
  width: 84px; height: 84px; border-radius: 19px;
  box-shadow: 0 10px 34px rgba(0,0,0,.5);
}
h1 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(3rem, 9vw, 5.4rem); line-height: 1;
  letter-spacing: 0.02em; margin-top: 2px;
}
header .lede { color: #E4DCD0; }
.lede { margin-top: 24px; font-size: 1.12rem; max-width: 600px; color: var(--muted); }

/* ── Light content ─────────────────────────────────────────── */
section { padding: 68px 0; border-top: 1px solid var(--hairline); }
h2 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(1.6rem, 3.4vw, 2.2rem); letter-spacing: -.01em; margin-bottom: 20px;
}
h3 { font-family: var(--serif); font-weight: 700; font-size: 1.08rem; margin-bottom: 6px; }
p + p { margin-top: 14px; }

.shots { display: flex; gap: 22px; flex-wrap: wrap; }
.shots img {
  width: 234px; max-width: 44vw; border-radius: 12px;
  box-shadow: 0 14px 40px rgba(23,19,15,.22);
}

/* Case-file cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(238px, 1fr)); gap: 20px; counter-reset: step; }
.card {
  background: var(--paper-2); border: 1px solid var(--hairline);
  border-left: 3px solid var(--crimson); border-radius: 3px; padding: 22px;
}
.card p { color: var(--muted); font-size: .95rem; }
.cards.steps .card::before {
  counter-increment: step; content: "N.º 0" counter(step);
  display: block; font-family: var(--mono); font-size: .68rem;
  letter-spacing: .18em; color: var(--crimson); margin-bottom: 8px;
}

dl dt { font-weight: 700; margin-top: 24px; font-family: var(--serif); font-size: 1.04rem; }
dl dd { margin: 4px 0 0; color: var(--muted); }

.lang { background: var(--paper-2); }
.lang h2 { font-size: 1.35rem; }

footer { background: var(--ink); color: var(--muted-lit); padding: 34px 0; margin-top: 0; }
footer a { color: var(--muted-lit); }
footer a:hover { color: var(--paper); }
footer .wrap {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-family: var(--mono); font-size: .76rem; letter-spacing: .05em;
}

@media (max-width: 640px) {
  header { padding: 64px 0 56px; }
  .shots img { width: 46vw; }
}

/* Language switch */
.lang-switch { font-family: var(--mono); font-size: .8rem; letter-spacing: .06em; color: var(--muted-lit); }
.lang-switch strong { color: var(--paper); font-weight: 700; }
.lang-switch a { color: var(--muted-lit); text-decoration: none; }
.lang-switch a:hover { color: var(--paper); }
.lang-switch .sep { opacity: .45; margin: 0 6px; }