/* ============================================================
   LinkWrks — Base / Reset v3
   ============================================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--fw-normal);
  line-height: var(--lh-normal);
  color: var(--clr-text);
  background-color: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(16,185,129,0.25);
  color: var(--clr-text);
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  line-height: var(--lh-tight);
  font-weight: var(--fw-bold);
  color: var(--clr-text);
  letter-spacing: var(--ls-tight);
}

p {
  color: var(--clr-text-muted);
  line-height: var(--lh-relaxed);
}

code { font-family: var(--font-mono); font-size: 0.88em; }

/* ── Layout Container ──────────────────────────────────── */

.container {
  width: 100%;
  max-width: var(--max-w-site);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}

@media (min-width: 640px)  { .container { padding-inline: var(--sp-8); } }
@media (min-width: 1024px) { .container { padding-inline: var(--sp-12); } }

.section { padding-block: var(--sp-24); }
@media (min-width: 768px)  { .section { padding-block: var(--sp-32); } }

/* ── Utility ───────────────────────────────────────────── */

.hidden { display: none; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* ── Section Header Pattern ────────────────────────────── */

.label {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--fw-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-emerald-400);
  margin-bottom: var(--sp-4);
}

.label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--clr-emerald-500);
  opacity: 0.5;
}

.section-title {
  font-size: clamp(var(--text-3xl), 4.2vw, var(--text-5xl));
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--ls-tighter);
  color: var(--clr-text);
  line-height: var(--lh-tight);
  margin-bottom: var(--sp-5);
}

.section-sub {
  font-size: var(--text-lg);
  color: var(--clr-text-muted);
  max-width: 52ch;
  line-height: var(--lh-relaxed);
  font-weight: var(--fw-normal);
}

.section-header { margin-bottom: var(--sp-16); }

.section-header--center {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ── Gradient Text ─────────────────────────────────────── */

.grad {
  background: linear-gradient(135deg, var(--clr-emerald-400) 0%, var(--clr-cyan-400) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ── Dividers ──────────────────────────────────────────── */

.divider {
  border: none;
  height: 1px;
  background: var(--clr-border);
}

/* ── Scroll Reveal ─────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slower) var(--ease-out),
              transform var(--dur-slower) var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 80ms; }
.reveal--delay-2 { transition-delay: 160ms; }
.reveal--delay-3 { transition-delay: 240ms; }
.reveal--delay-4 { transition-delay: 320ms; }
.reveal--delay-5 { transition-delay: 400ms; }
.reveal--delay-6 { transition-delay: 480ms; }