/* Reset + body defaults. */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; text-rendering: optimizeLegibility; }
body {
  background: var(--ink-950);
  color: var(--ink-100);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.5;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--ember); color: var(--ink-0); }

/* Headings */
h1, h2, h3, h4, h5 { font-family: var(--font-display); font-weight: 400; line-height: 1.02; letter-spacing: -0.02em; margin: 0; color: var(--ink-0); }
h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
p  { margin: 0; max-width: 65ch; text-wrap: pretty; }
strong { color: var(--ink-0); font-weight: 500; }

/* Mono */
.mono { font-family: var(--font-mono); font-size: var(--fs-sm); letter-spacing: 0; }

/* Eyebrow */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-300);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--ember); display: inline-block; }
.eyebrow.signal .dot { background: var(--signal); }

/* Pill tag (rounded-full, hairline) */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--hairline-soft);
  border: 1px solid var(--hairline);
  color: var(--ink-100);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--space-4);
}
@media (min-width: 720px) { .container { padding-inline: var(--space-7); } }
@media (min-width: 1100px) { .container { padding-inline: var(--space-9); } }

/* Sections */
.section {
  padding-block: var(--space-9);
  position: relative;
}
@media (min-width: 720px) { .section { padding-block: var(--space-10); } }

/* Hairline utility */
.hairline { border: 1px solid var(--hairline); }
.hairline-t { border-top: 1px solid var(--hairline); }
.hairline-b { border-bottom: 1px solid var(--hairline); }

/* Double-bezel card */
.bezel {
  background: var(--hairline-soft);
  border: 1px solid var(--hairline);
  border-radius: 32px;
  padding: 6px;
}
.bezel > .bezel-core {
  background: var(--ink-900);
  border-radius: 26px;
  box-shadow: var(--inner-highlight);
  padding: var(--space-7);
}
@media (max-width: 719px) {
  .bezel { border-radius: 22px; padding: 4px; }
  .bezel > .bezel-core { border-radius: 18px; padding: var(--space-5); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 14px 18px 14px 22px;
  border-radius: 999px;
  background: var(--ink-0);
  color: var(--ink-950);
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: -0.01em;
  font-size: 15px;
  transition: transform var(--t-fast) var(--ease-out-expo), background var(--t-ui) var(--ease-out-expo);
}
.btn:hover { background: var(--ember-glow); color: var(--ink-950); }
.btn:active { transform: scale(0.97); }
.btn .arrow {
  width: 28px; height: 28px;
  border-radius: 999px;
  background: var(--ink-950);
  color: var(--ink-0);
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform var(--t-ui) var(--ease-out-expo);
}
.btn:hover .arrow { transform: translateX(2px); }

.btn.ghost {
  background: transparent;
  color: var(--ink-0);
  border: 1px solid var(--hairline);
}
.btn.ghost:hover { background: var(--hairline-soft); color: var(--ink-0); }
.btn.ghost .arrow { background: var(--ink-0); color: var(--ink-950); }

/* Focus rings */
:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
  z-index: 999;
  background: var(--ink-0);
  color: var(--ink-950);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
}

/* Editorial split, used across sections */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
  align-items: start;
}
@media (min-width: 980px) {
  .split { grid-template-columns: 1fr 1fr; gap: var(--space-9); }
  .split.lead-left { grid-template-columns: 1.1fr 1fr; }
  .split.lead-right { grid-template-columns: 1fr 1.2fr; }
}

/* Section eyebrow row */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-7);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--hairline);
}
.section-head .num { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; color: var(--ink-300); text-transform: uppercase; }

/* Mono caption */
.caption {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--ink-300);
  letter-spacing: 0.02em;
}

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