/* ==========================================================================
   Hardev Consultants — Base
   Reset, typography, layout primitives.
   ========================================================================== */

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
  font-feature-settings: "ss01", "cv11", "kern";
  background: var(--c-bg);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--lh-normal);
  color: var(--c-text);
  background: var(--c-bg);
  overflow-x: clip;
  position: relative;
  transition: background-color var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
}

/* Subtle film grain overlay — bonds the visual language together */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-overlay);
  opacity: var(--noise-opacity);
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/></svg>");
  mix-blend-mode: overlay;
}

img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
img { font-style: italic; background-repeat: no-repeat; background-size: cover; }

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button { background: none; border: 0; cursor: pointer; padding: 0; }

a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

::selection {
  background: color-mix(in oklch, var(--c-primary) 80%, transparent);
  color: var(--bone-50);
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-xs);
}

/* ── Type primitives ──────────────────────────────────────────────────────── */

.display,
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: var(--w-light);
  letter-spacing: var(--tracking-tightest);
  line-height: var(--lh-tight);
  color: var(--c-text);
  text-wrap: balance;
  font-variation-settings: "opsz" 144, "SOFT" 50;
}

h1 { font-size: var(--text-5xl); font-weight: 300; }
h2 { font-size: var(--text-4xl); font-weight: 300; }
h3 { font-size: var(--text-2xl); font-weight: 400; letter-spacing: var(--tracking-tight); }
h4 { font-family: var(--font-sans); font-size: var(--text-lg); font-weight: var(--w-medium); letter-spacing: var(--tracking-tight); line-height: var(--lh-snug); }
h5 { font-family: var(--font-sans); font-size: var(--text-base); font-weight: var(--w-medium); letter-spacing: var(--tracking-tight); }

p { line-height: var(--lh-relaxed); color: var(--c-text-muted); text-wrap: pretty; max-width: 68ch; }

em, .italic { font-style: italic; font-variation-settings: "opsz" 14; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--w-regular);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--c-text-faint);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow::before {
  content: "";
  width: 1.6em;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.lede {
  font-size: var(--text-lg);
  line-height: var(--lh-relaxed);
  color: var(--c-text-muted);
  max-width: 56ch;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.92em;
  letter-spacing: var(--tracking-normal);
}

.gradient-text {
  background: linear-gradient(
    100deg,
    var(--c-text) 0%,
    var(--c-text) 30%,
    color-mix(in oklch, var(--c-primary) 80%, var(--c-text)) 60%,
    var(--c-secondary) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.serif-italic {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 144, "SOFT" 100;
}

/* ── Layout primitives ────────────────────────────────────────────────────── */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }
.container--wide   { max-width: var(--container-wide); }

.section {
  padding-block: var(--section-y);
  position: relative;
}

.section-head {
  display: grid;
  gap: var(--space-5);
  margin-bottom: var(--space-16);
  max-width: 48rem;
}

.section-head--center { text-align: center; margin-inline: auto; }

.stack { display: flex; flex-direction: column; gap: var(--space-4); }
.stack-lg { gap: var(--space-8); }
.row { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }

.divider-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-border), transparent);
  border: 0;
  margin-block: var(--space-8);
}

/* Skip-to-content for keyboard users */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  padding: var(--space-3) var(--space-5);
  background: var(--c-bg-raised);
  color: var(--c-text);
  border-radius: var(--radius-sm);
  z-index: var(--z-toast);
  border: 1px solid var(--c-border);
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus-visible { top: var(--space-4); }

/* Visually hidden but available to assistive tech */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Utility */
.text-center { text-align: center; }
.text-balance { text-wrap: balance; }
.text-muted { color: var(--c-text-muted); }
.text-faint { color: var(--c-text-faint); }
.text-primary { color: var(--c-primary); }
.text-secondary { color: var(--c-secondary); }
.text-accent { color: var(--c-accent); }