/* ============================================================
   OLARGO — Industrial safety landing — design tokens & base
   Aesthetic: safety-yellow + hazard-black, marking-line motifs
   ============================================================ */

:root {
  /* Core palette */
  --ink: #0a0a0b;          /* hazard black */
  --ink-2: #141417;        /* raised black */
  --ink-3: #1f2024;        /* borders on dark */
  --paper: #ffffff;
  --paper-2: #f1f1ee;      /* concrete light */
  --paper-3: #e7e7e2;      /* concrete mid */
  --concrete-line: #d8d8d2;

  /* Safety accent */
  --safety: #ffd200;       /* signal yellow */
  --safety-2: #ffdf40;
  --safety-deep: #e8b400;  /* pressed */
  --safety-ink: #0a0a0b;   /* text on yellow */

  /* Support */
  --road-white: #f7f7f4;
  --hazard-red: #e5392c;
  --ok: #1f9d63;

  /* Text */
  --tx-on-dark: #f4f4f1;
  --tx-on-dark-mut: #9a9aa0;
  --tx-on-light: #0a0a0b;
  --tx-on-light-mut: #5c5c5e;

  /* Type */
  --font-display: "Oswald", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Golos Text", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  /* Geometry */
  --radius: 4px;
  --radius-lg: 8px;
  --maxw: 1240px;
  --gutter: clamp(20px, 5vw, 56px);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---- accent theming (Tweaks can flip --safety) ---- */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--tx-on-light);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* hazard stripe utility */
.hazard {
  background-image: repeating-linear-gradient(
    -45deg,
    var(--ink) 0 22px,
    var(--safety) 22px 44px
  );
}
.hazard-thin {
  background-image: repeating-linear-gradient(
    -45deg,
    var(--ink) 0 10px,
    var(--safety) 10px 20px
  );
}

/* display headings */
.display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 0.94;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 13px;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.tnum { font-variant-numeric: tabular-nums; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 15px;
  padding: 15px 26px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  transition: transform 0.18s var(--ease), background 0.18s, color 0.18s, box-shadow 0.18s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(0.99); }

.btn-yellow {
  background: var(--safety);
  color: var(--safety-ink);
  box-shadow: 0 0 0 0 rgba(255,210,0,0);
}
.btn-yellow:hover {
  background: var(--safety-2);
  box-shadow: 0 10px 30px -8px rgba(255,210,0,0.6);
  transform: translateY(-2px);
}
.btn-ghost-dark {
  background: transparent;
  color: var(--tx-on-dark);
  border-color: var(--ink-3);
}
.btn-ghost-dark:hover { border-color: var(--safety); color: var(--safety); }

.btn-dark {
  background: var(--ink);
  color: var(--tx-on-dark);
}
.btn-dark:hover { background: var(--ink-2); transform: translateY(-2px); }

.btn-ghost-light {
  background: transparent;
  color: var(--ink);
  border-color: rgba(10,10,11,0.2);
}
.btn-ghost-light:hover { border-color: var(--ink); }

/* arrow nudge */
.btn .arrow { transition: transform 0.2s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }