/* ============================================================
   HK TRISENTA — Base / Reset / Typography
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink-900);
  background-color: var(--paper-50);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

/* typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-display);
  margin: 0;
  color: inherit;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); }
h5 { font-size: var(--fs-h5); }
h6 { font-size: var(--fs-h6); }

p {
  margin: 0 0 1em;
  max-width: 72ch;
}

a {
  color: var(--navy-700);
  text-decoration: none;
  transition: color var(--dur-instant) var(--ease-out);
}

a:hover {
  color: var(--copper-700);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  box-shadow: var(--glow-navy);
  border-radius: var(--radius-sm);
}

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

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

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

::selection {
  background-color: var(--copper-700);
  color: var(--paper-100);
}

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

@media (max-width: 1024px) {
  .container { max-width: var(--container-tablet); }
}

@media (max-width: 768px) {
  .container { padding-inline: 20px; }
}

/* typography helpers */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-overline);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--ink-300);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.eyebrow--accent { color: var(--copper-700); }
.eyebrow--light { color: var(--ink-100); }

.lede {
  font-size: var(--fs-lead);
  line-height: 1.45;
  color: var(--ink-500);
  max-width: 60ch;
}

.display {
  font-size: var(--fs-display);
  line-height: 1;
  letter-spacing: -0.03em;
  font-weight: 800;
}

/* responsive type — clamp headings */
@media (max-width: 1024px) {
  h1 { font-size: 3.75rem; }
  h2 { font-size: 2.75rem; }
  h3 { font-size: 2.125rem; }
  .display { font-size: 5rem; }
}

@media (max-width: 768px) {
  h1 { font-size: 2.75rem; }
  h2 { font-size: 2.125rem; }
  h3 { font-size: 1.625rem; }
  h4 { font-size: 1.5rem; }
  .display { font-size: 3.5rem; }
  .lede { font-size: 1.125rem; }
}

@media (max-width: 480px) {
  h1 { font-size: 2.25rem; }
  .display { font-size: 2.75rem; }
}

/* section rhythm */
.section {
  padding-block: var(--space-9);
  position: relative;
}

.section--lg {
  padding-block: var(--space-10);
}

.section--dark {
  background: var(--ink-900);
  color: var(--paper-50);
}

.section--paper {
  background: var(--paper-100);
}

.section--paper-50 {
  background: var(--paper-50);
}

.section--gradient-dark {
  background: var(--grad-hero-dark);
  color: var(--paper-50);
}

@media (max-width: 768px) {
  .section,
  .section--lg { padding-block: var(--space-7); }
}

/* utility */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.text-center { text-align: center; }
.text-copper { color: var(--copper-700); }
.text-navy { color: var(--navy-700); }
.text-muted { color: var(--ink-300); }

.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;
}

/* skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--navy-700);
  color: var(--paper-100);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: var(--z-toast);
  font-weight: 600;
  transition: top var(--dur-instant) var(--ease-out);
}

.skip-link:focus-visible {
  top: var(--space-4);
}

/* reveal animation base — applied by motion.js */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

.stagger.is-in > * {
  opacity: 1;
  transform: none;
}

.stagger.is-in > *:nth-child(1) { transition-delay: 0ms; }
.stagger.is-in > *:nth-child(2) { transition-delay: 80ms; }
.stagger.is-in > *:nth-child(3) { transition-delay: 160ms; }
.stagger.is-in > *:nth-child(4) { transition-delay: 240ms; }
.stagger.is-in > *:nth-child(5) { transition-delay: 320ms; }
.stagger.is-in > *:nth-child(6) { transition-delay: 400ms; }
.stagger.is-in > *:nth-child(7) { transition-delay: 480ms; }
.stagger.is-in > *:nth-child(8) { transition-delay: 560ms; }

/* split-text kinetic — letters fade up with stagger */
.split-text .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(60%);
  transition: opacity var(--dur-cinematic) var(--ease-out), transform var(--dur-cinematic) var(--ease-out);
}

.split-text.is-in .char {
  opacity: 1;
  transform: none;
}

.split-text.is-in .char:nth-child(1)  { transition-delay: 0ms; }
.split-text.is-in .char:nth-child(2)  { transition-delay: 40ms; }
.split-text.is-in .char:nth-child(3)  { transition-delay: 80ms; }
.split-text.is-in .char:nth-child(4)  { transition-delay: 120ms; }
.split-text.is-in .char:nth-child(5)  { transition-delay: 160ms; }
.split-text.is-in .char:nth-child(6)  { transition-delay: 200ms; }
.split-text.is-in .char:nth-child(7)  { transition-delay: 240ms; }
.split-text.is-in .char:nth-child(8)  { transition-delay: 280ms; }
.split-text.is-in .char:nth-child(9)  { transition-delay: 320ms; }
.split-text.is-in .char:nth-child(10) { transition-delay: 360ms; }
.split-text.is-in .char:nth-child(11) { transition-delay: 400ms; }
.split-text.is-in .char:nth-child(12) { transition-delay: 440ms; }
.split-text.is-in .char:nth-child(13) { transition-delay: 480ms; }
.split-text.is-in .char:nth-child(14) { transition-delay: 520ms; }
.split-text.is-in .char:nth-child(15) { transition-delay: 560ms; }
.split-text.is-in .char:nth-child(16) { transition-delay: 600ms; }
.split-text.is-in .char:nth-child(17) { transition-delay: 640ms; }
.split-text.is-in .char:nth-child(18) { transition-delay: 680ms; }
.split-text.is-in .char:nth-child(19) { transition-delay: 720ms; }
.split-text.is-in .char:nth-child(20) { transition-delay: 760ms; }

/* print styles for legal pages */
@media print {
  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }
  nav, footer, .no-print { display: none !important; }
  a { color: #000; text-decoration: underline; }
  a::after { content: " (" attr(href) ")"; font-size: 90%; }
}