/* =========================================================
   HAKI - Base reset, typography, layout primitives
   ========================================================= */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.65;
  font-weight: 400;
  font-size: 16px;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

::selection {
  background: rgba(200, 168, 78, 0.30);
  color: var(--text-primary);
}

img, svg { display: block; max-width: 100%; height: auto; }

a {
  color: var(--link);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}
a:hover { color: var(--accent-primary-hover); }

/* ---- Typography scale ---- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.15;
  font-weight: 700;
}

.h1, h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  letter-spacing: -0.03em;
  line-height: 1.06;
}

.h2, h2 {
  font-size: clamp(1.875rem, 4vw, 2.625rem);
  letter-spacing: -0.025em;
  line-height: 1.12;
}

.h3, h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  letter-spacing: -0.015em;
}

.h4, h4 { font-size: 1.125rem; letter-spacing: -0.01em; }

p { color: var(--text-secondary); font-size: 1rem; line-height: 1.7; }

.lead {
  color: var(--text-secondary);
  font-size: clamp(1.0625rem, 1.75vw, 1.25rem);
  line-height: 1.6;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-primary);
  padding: 0.45rem 0.875rem;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-pill);
  background: rgba(200, 168, 78, 0.06);
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
}

.text-muted   { color: var(--text-muted); }
.text-tert    { color: var(--text-tertiary); }
.text-second  { color: var(--text-secondary); }
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Layout primitives ---- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
.container-md { max-width: var(--container-md); margin-inline: auto; padding-inline: var(--space-4); }
.container-sm { max-width: var(--container-sm); margin-inline: auto; padding-inline: var(--space-4); }

@media (min-width: 720px) {
  .container, .container-md, .container-sm { padding-inline: var(--space-5); }
}

section {
  padding-block: clamp(72px, 9vw, 128px);
  position: relative;
}
section + section { border-top: 1px solid var(--border-subtle); }
.section-tight { padding-block: clamp(48px, 6vw, 80px); }

.section-header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-7);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-4); }

@media (max-width: 960px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

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

/* ---- Visual flourish: subtle radial glow behind the body in dark mode ---- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: var(--gradient-hero);
  z-index: 0;
}
main, nav, footer { position: relative; z-index: 1; }

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 16px;
  background: var(--accent-primary);
  color: var(--haki-navy);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-btn);
  font-weight: 600;
  z-index: 1000;
}
.skip-link:focus { top: 16px; }

/* Visually hidden helper */
.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;
}

/* Focus rings */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
  border-radius: 4px;
}