/* ============================================================================
   Base — reset, grain, typography, nav, footer, flash, eyebrow/rule.
   Shell-level legacy classes (.flash .muted .lede .linkish) live here; the
   rest of the DO-NOT-REMOVE list is in components.css.
   ============================================================================ */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

/* film grain over the whole viewport (never blocks clicks) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.022;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

a { color: inherit; text-decoration: none; }

::selection { background: rgba(232, 176, 92, 0.28); color: var(--text-1); }

:focus-visible {
  outline: 2px solid var(--gold-400);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ── typography ─────────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-1);
  margin: 0;
  letter-spacing: -0.02em;
}
h1 { font-size: var(--fs-display-2); line-height: 1.04; letter-spacing: -0.03em; }
h2 { font-size: var(--fs-h2); line-height: 1.1; }
h3 { font-size: var(--fs-h3); line-height: 1.3; letter-spacing: -0.01em; }
p  { margin: 0; }

strong { color: var(--text-1); font-weight: 600; }

/* ── layout container ───────────────────────────────────────────────────── */
.wrap {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-inline: var(--content-pad);
}

main { display: block; }

/* ── eyebrow + ledger rule (signature section header) ───────────────────── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 0 0 var(--sp-4);
}
.eyebrow span { color: var(--gold-300); }

.rule {
  height: 8px;
  margin-bottom: var(--sp-5);
  border-top: 1px solid var(--line-1);
  background-image: repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px 96px);
  background-size: 100% 6px;
  background-repeat: no-repeat;
}

.section-head { margin-bottom: var(--sp-7); max-width: 720px; }
.section-head h2 { max-width: 18ch; }
.section-head .lede { margin-top: var(--sp-4); }

/* ── header / nav ───────────────────────────────────────────────────────── */
.top {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  padding: var(--sp-4) var(--content-pad);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--dur-3) var(--ease-inout),
              border-color var(--dur-3) var(--ease-inout),
              backdrop-filter var(--dur-3) var(--ease-inout);
}
.top.nav-scrolled,
.top.nav-solid {
  background: var(--scrim);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-1);
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
  color: var(--text-1);
  white-space: nowrap;
}
.brand::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--gold-400);
  box-shadow: var(--glow-gold-sm);
  vertical-align: middle;
}

.top nav {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}
.top nav a {
  font-size: var(--fs-small);
  color: var(--text-2);
  transition: color var(--dur-1);
}
.top nav a:hover { color: var(--text-1); }
.top nav a.btn { color: var(--gold-ink); }

.inline { display: inline; margin: 0; }

/* ── mobile menu toggle (hamburger) — hidden on desktop, shown ≤720 ──────── */
.nav-toggle { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; pointer-events: none; }
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 40px;
  margin-right: -10px;
  padding: 0 10px;
  border-radius: var(--r-sm);
  cursor: pointer;
  z-index: 2;
}
.nav-burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: transform var(--dur-2) var(--ease-out), opacity var(--dur-1);
}

/* ── footer ─────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--line-1);
  padding: var(--sp-7) var(--content-pad);
  margin-top: var(--sp-9);
}
footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
footer small { color: var(--text-3); font-size: var(--fs-small); }
footer .foot-links { display: flex; gap: var(--sp-5); }
footer .foot-links a { color: var(--text-2); font-size: var(--fs-small); transition: color var(--dur-1); }
footer .foot-links a:hover { color: var(--gold-300); }

/* ── flash banner (server-rendered; DO NOT rename .flash) ───────────────── */
.flash {
  max-width: var(--content-max);
  margin: var(--sp-4) auto 0;
  padding: var(--sp-3) var(--sp-5);
  width: calc(100% - 2 * var(--content-pad));
  background: rgba(232, 176, 92, 0.08);
  border: 1px solid var(--line-gold-dim);
  border-radius: var(--r-md);
  color: var(--gold-200);
  font-size: var(--fs-small);
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

/* ── shell utilities (DO NOT rename .muted .lede .linkish) ──────────────── */
.muted { color: var(--text-2); }
.lede {
  font-size: var(--fs-body-lg);
  line-height: 1.7;
  color: var(--text-2);
  max-width: 56ch;
}
.linkish {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-size: var(--fs-small);
  color: var(--text-2);
  cursor: pointer;
  transition: color var(--dur-1);
}
.linkish:hover { color: var(--text-1); }

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

/* ── responsive nav (collapses into a hamburger dropdown) ───────────────── */
@media (max-width: 720px) {
  .top { gap: var(--sp-3); padding: var(--sp-3) var(--content-pad); }
  .brand { font-size: 1rem; }

  .nav-burger { display: flex; }

  .top nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-inline: var(--content-pad);
    padding-block: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    background: var(--scrim);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    box-shadow: var(--shadow-panel);
    transition: max-height var(--dur-3) var(--ease-inout),
                padding-block var(--dur-3) var(--ease-inout),
                opacity var(--dur-2) var(--ease-inout),
                visibility 0s linear var(--dur-2);
  }
  .nav-toggle:checked ~ nav {
    max-height: 80vh;
    padding-block: var(--sp-2) var(--sp-4);
    overflow-y: auto;
    opacity: 1;
    visibility: visible;
    border-bottom-color: var(--line-1);
    transition: max-height var(--dur-3) var(--ease-inout),
                padding-block var(--dur-3) var(--ease-inout),
                opacity var(--dur-2) var(--ease-inout),
                visibility 0s;
  }

  .top nav a,
  .top nav .linkish {
    width: 100%;
    font-size: var(--fs-body);
    padding-block: var(--sp-3);
    color: var(--text-1);
  }
  .top nav a { border-top: 1px solid var(--line-1); }
  .top nav a:first-of-type { border-top: none; }
  .top nav .inline { display: block; width: 100%; border-top: 1px solid var(--line-1); }
  .top nav .linkish { text-align: left; }
  .top nav a.btn {
    justify-content: center;
    margin-top: var(--sp-4);
    border-top: none;
    padding-block: 13px;
    color: var(--gold-ink);
  }

  /* burger → close (X) */
  .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}