/* ==========================================================================
   Brake Spoon — Reset, typography, layout primitives, chrome
   ========================================================================== */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--t-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 800;
  font-stretch: 115%;
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: var(--t-h1); }
h2 { font-size: var(--t-h2); }
h3 { font-size: var(--t-h3); font-weight: 700; line-height: 1.12; letter-spacing: -0.02em; }

p { margin: 0 0 var(--s-4); text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }

ul, ol { margin: 0 0 var(--s-4); padding-left: 1.15em; }
li { margin-bottom: var(--s-2); }

:focus-visible {
  outline: 3px solid var(--sticker);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip-link {
  position: absolute; left: var(--s-4); top: -100px; z-index: 200;
  background: var(--ink); color: var(--paper);
  padding: var(--s-3) var(--s-5); border-radius: var(--r-pill);
  font-weight: 600; text-decoration: none;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: var(--s-4); }

/* --- Layout primitives ---------------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-narrow { max-width: 820px; }
.section { padding-block: var(--section-y); position: relative; }
.section-tight { padding-block: clamp(3rem, 6vw, 5rem); }

/* --- Eyebrow: mono, the "stamped data" voice of the subject ---------------- */
.eyebrow {
  font-family: var(--data);
  font-size: var(--t-micro);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex; align-items: center; gap: var(--s-3);
  margin: 0 0 var(--s-5);
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px; background: var(--pass); flex: none;
}
.eyebrow-center { justify-content: center; }

.lead { font-size: var(--t-lead); color: var(--ink-2); max-width: var(--maxw-text); line-height: 1.55; }

/* --- Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  white-space: nowrap;
  font-family: var(--display); font-weight: 700; font-stretch: 110%;
  font-size: 1.0625rem; letter-spacing: -0.01em;
  padding: 0.95rem 1.75rem;
  border-radius: var(--r-pill);
  border: 2px solid var(--ink);
  background: var(--ink); color: var(--paper);
  text-decoration: none; cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-pop),
              box-shadow var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

.btn-pass { background: var(--pass); border-color: var(--ink); color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-lg { font-size: 1.15rem; padding: 1.1rem 2.25rem; }
.btn-sm { font-size: 0.9rem; padding: 0.6rem 1.15rem; border-width: 2px; }

/* --- Floating header ------------------------------------------------------
   Two states. At the top of the page the bar is larger and roomier. Once you
   scroll, it lifts up and out (.hdr-hide), swaps to the compact floating
   state (.hdr-float), and drops back down. main.js runs the sequence. */
.hdr {
  position: fixed; inset: 1.1rem 0 auto; z-index: 100;
  display: flex; justify-content: center;
  padding-inline: var(--gutter);
  pointer-events: none;
  transition: transform 280ms var(--ease-out), opacity 280ms var(--ease-out);
}
.hdr.hdr-hide { transform: translateY(-150%); opacity: 0; }
@media (prefers-reduced-motion: reduce) { .hdr { transition: none; } }
.hdr-inner {
  pointer-events: auto;
  width: 100%; max-width: var(--maxw);
  display: flex; align-items: center; gap: var(--s-5);
  padding: 0.55rem 0.55rem 0.55rem 1.25rem;
  background: color-mix(in srgb, var(--card) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.5);
  -webkit-backdrop-filter: blur(14px) saturate(1.5);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--dur-mid) var(--ease-out),
              background var(--dur-mid) var(--ease-out),
              transform var(--dur-mid) var(--ease-out);
}
/* Top of page: same bar, no pill. Scrolled: the pill fades in around it.
   Geometry is identical in both states so the swap is seamless. */
.hdr:not(.hdr-float) .hdr-inner {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.hdr.hdr-float .hdr-inner {
  box-shadow: var(--shadow-md);
  background: color-mix(in srgb, var(--card) 94%, transparent);
}

/* Larger desktop header, both states. */
@media (min-width: 901px) {
  .hdr-inner { padding: 0.85rem 0.85rem 0.85rem 1.6rem; gap: var(--s-6); }
  .brand-mark { width: 36px; height: 36px; }
  .brand-name { font-size: 1.25rem; }
  .nav-link { font-size: 1.0625rem; }
  .hdr-cta { font-size: 1rem; padding: 0.75rem 1.4rem; }
}

.brand { display: flex; align-items: center; gap: var(--s-3); text-decoration: none; flex: none; }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-name {
  font-family: var(--display); font-weight: 800; font-stretch: 118%;
  font-size: 1.0625rem; letter-spacing: -0.035em; color: var(--ink); white-space: nowrap;
}

.nav { display: flex; align-items: center; gap: var(--s-5); margin-left: auto; }
.nav-link {
  font-size: 0.9375rem; font-weight: 500; color: var(--ink-2);
  text-decoration: none; white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-link:hover, .nav-link[aria-current="page"] { color: var(--ink); }

.nav-toggle {
  display: none; margin-left: auto;
  background: none; border: 0; padding: var(--s-2); cursor: pointer; color: var(--ink);
}

@media (max-width: 900px) {
  .nav {
    position: absolute; inset: calc(100% + var(--s-3)) 0 auto;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--card); border: 1px solid var(--line);
    border-radius: var(--r-lg); box-shadow: var(--shadow-lg);
    padding: var(--s-3); margin-left: 0;
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity var(--dur-fast) var(--ease-out),
                transform var(--dur-fast) var(--ease-out), visibility var(--dur-fast);
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-link { padding: var(--s-3) var(--s-4); border-radius: var(--r-sm); }
  .nav-link:hover { background: var(--paper); }
  .nav-toggle { display: block; }
  /* brand left; CTA and hamburger together on the right */
  .hdr-cta { margin-left: auto; order: 0; }
  .nav-toggle { margin-left: 0; order: 5; }
}

/* --- Footer --------------------------------------------------------------- */
.ftr { background: var(--ink); color: var(--paper); padding-block: var(--s-9) var(--s-6); }
.ftr-grid {
  display: grid; gap: var(--s-7);
  grid-template-columns: 1.6fr repeat(3, 1fr);
}
@media (max-width: 820px) { .ftr-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .ftr-grid { grid-template-columns: 1fr; } }

.ftr .brand-name { color: var(--paper); }
.ftr-blurb { color: color-mix(in srgb, var(--paper) 62%, transparent); max-width: 34ch; margin-top: var(--s-4); font-size: var(--t-small); }
.ftr-h {
  font-family: var(--data); font-size: var(--t-micro); letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--pass); margin: 0 0 var(--s-4);
}
.ftr-list { list-style: none; margin: 0; padding: 0; }
.ftr-list li { margin-bottom: var(--s-3); }
.ftr-list a { color: color-mix(in srgb, var(--paper) 74%, transparent); text-decoration: none; font-size: var(--t-small); }
.ftr-list a:hover { color: var(--paper); }
.ftr-base {
  margin-top: var(--s-8); padding-top: var(--s-5);
  border-top: 1px solid color-mix(in srgb, var(--paper) 15%, transparent);
  display: flex; flex-wrap: wrap; gap: var(--s-4); justify-content: space-between;
  font-size: var(--t-micro); font-family: var(--data);
  color: color-mix(in srgb, var(--paper) 52%, transparent);
}

/* --- Scroll reveal -------------------------------------------------------- */
.js .reveal { opacity: 0; transform: translateY(22px); }
.reveal.is-in {
  opacity: 1; transform: none;
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}


/* --- Mobile density --------------------------------------------------------
   Tighter chrome and type below 560px: the header CTA stays on one line and
   never dominates the bar, and cards and sections lose a step of padding. */
@media (max-width: 560px) {
  .hdr { inset: 0.6rem 0 auto; padding-inline: 0.75rem; }
  .hdr-inner { gap: 0.6rem; padding: 0.4rem 0.4rem 0.4rem 0.85rem; }
  .brand-mark { width: 26px; height: 26px; }
  .brand-name { font-size: 0.9375rem; }
  .hdr-cta { font-size: 0.78rem; padding: 0.5rem 0.85rem; }
  .section { padding-block: clamp(2.75rem, 10vw, 4rem); }
  .ftr { padding-block: var(--s-8) var(--s-5); }
}