/* ---------- Evan's 50th — Shared Design Tokens ---------- */
/* Palette A: Romantic + Mono (Playfair Italic + JetBrains Mono) × Navy/Brass/Cream */

:root {
  /* Light mode (default) */
  --ink: #0f1b2d;
  --ink-soft: #2d3e52;
  --paper: #faf7f2;
  --paper-warm: #f2ebdc;
  --cream: #e8ddc6;
  --brass: #c9b487;
  --brass-deep: #a08a5c;
  --river: #4a6b7c;
  --muted: #6b6a67;
  --rule: rgba(15, 27, 45, 0.14);
  --rule-strong: rgba(15, 27, 45, 0.32);

  /* Type */
  --serif: "Playfair Display", "Cormorant Garamond", Georgia, serif;
  --serif-italic: "Playfair Display", Georgia, serif;
  --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
  --sans: "Inter Tight", "Helvetica Neue", Arial, sans-serif;

  /* Spacing */
  --page-pad: clamp(24px, 5vw, 80px);
  --maxw: 1440px;
}

/* Dark mode */
:root[data-theme="dark"] {
  --ink: #f2ebdc;
  --ink-soft: #e8ddc6;
  --paper: #0b1220;
  --paper-warm: #111b2c;
  --cream: #1a2638;
  --brass: #d4be8f;
  --brass-deep: #c9b487;
  --river: #7a95a8;
  --muted: #8d9cad;
  --rule: rgba(242, 235, 220, 0.16);
  --rule-strong: rgba(242, 235, 220, 0.34);
}

/* Palette B: Forest/Cognac — applied when data-palette="forest" */
:root[data-palette="forest"] {
  --ink: #1f2a1f;
  --ink-soft: #2a3f2a;
  --paper: #f4efe6;
  --paper-warm: #ebe3d2;
  --cream: #e0d4bb;
  --brass: #8a7352;
  --brass-deep: #6b5840;
  --river: #3f5a4a;
  --muted: #6b6a57;
  --rule: rgba(31, 42, 31, 0.14);
  --rule-strong: rgba(31, 42, 31, 0.32);
}
:root[data-palette="forest"][data-theme="dark"] {
  --ink: #ebe3d2;
  --paper: #10140f;
  --paper-warm: #171d15;
  --cream: #1f2a1f;
  --brass: #c9a877;
}

/* Palette C: Mono — stark black/white */
:root[data-palette="mono"] {
  --ink: #0a0a0a;
  --ink-soft: #2a2a2a;
  --paper: #ffffff;
  --paper-warm: #f2ede5;
  --cream: #ece7df;
  --brass: #5a5a52;
  --brass-deep: #2a2a2a;
  --river: #555;
  --muted: #6b6b6b;
  --rule: rgba(0, 0, 0, 0.14);
  --rule-strong: rgba(0, 0, 0, 0.4);
}
:root[data-palette="mono"][data-theme="dark"] {
  --ink: #f4f4f4;
  --paper: #0a0a0a;
  --paper-warm: #141414;
  --cream: #1c1c1c;
  --brass: #b8b8b8;
  --brass-deep: #e0e0e0;
  --rule: rgba(255, 255, 255, 0.18);
}

/* Palette D: Sunset — terracotta/rust */
:root[data-palette="sunset"] {
  --ink: #3d1a14;
  --ink-soft: #6b2d2d;
  --paper: #fdfbf6;
  --paper-warm: #f5ebd8;
  --cream: #ecdbb8;
  --brass: #c17a4a;
  --brass-deep: #9c5a30;
  --river: #8a4a3a;
  --muted: #7a5a4e;
  --rule: rgba(61, 26, 20, 0.14);
  --rule-strong: rgba(61, 26, 20, 0.34);
}
:root[data-palette="sunset"][data-theme="dark"] {
  --ink: #f5ebd8;
  --paper: #1a0f0b;
  --paper-warm: #251612;
  --cream: #2d1c16;
  --brass: #e69b6a;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color .4s ease, color .4s ease;
}
a { color: inherit; }

/* Typography primitives */
.serif { font-family: var(--serif); }
.italic { font-style: italic; }
.mono { font-family: var(--mono); font-feature-settings: "ss01"; }
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
.rule { height: 1px; background: var(--rule); border: none; }
.rule-ink { height: 1px; background: var(--ink); border: none; opacity: .6; }

/* Shared layout */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--page-pad);
  padding-right: var(--page-pad);
}

/* Top navigation — larger, glassy, dual-state */
.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px var(--page-pad);
  color: #f2ebdc; /* default: light text for hero photos */
  background: transparent;
  transition: background-color .4s ease, backdrop-filter .4s ease, color .4s ease, padding .3s ease, border-color .4s ease;
  border-bottom: 1px solid transparent;
  pointer-events: none;
}
/* Readable scrim behind nav when over photos (top-of-page state) */
.topnav::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.25) 50%, rgba(0,0,0,0) 100%);
  pointer-events: none;
  transition: opacity .4s ease;
}
/* Scrolled state — glass bar, theme-aware ink color */
.topnav.scrolled {
  background: color-mix(in oklab, var(--paper) 82%, transparent);
  backdrop-filter: saturate(1.2) blur(14px);
  -webkit-backdrop-filter: saturate(1.2) blur(14px);
  color: var(--ink);
  border-bottom-color: var(--rule);
  padding: 14px var(--page-pad);
}
.topnav.scrolled::before { opacity: 0; }

.topnav a { pointer-events: auto; }
.topnav .brand {
  font-family: var(--serif);
  font-style: italic;
  font-size: 28px;
  letter-spacing: -.01em;
  text-decoration: none;
  color: inherit;
  line-height: 1;
}
.topnav.scrolled .brand { font-size: 24px; }
.topnav .brand sup {
  font-family: var(--mono);
  font-style: normal;
  font-size: 10px;
  letter-spacing: .2em;
  margin-left: 8px;
  opacity: .75;
  vertical-align: super;
}
.topnav nav {
  display: flex;
  gap: 32px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .2em;
  text-transform: uppercase;
  font-weight: 500;
}
.topnav nav a {
  text-decoration: none;
  opacity: .9;
  position: relative;
  padding: 4px 0;
  transition: opacity .2s ease;
}
.topnav nav a:hover { opacity: 1; }
.topnav nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .3s ease;
}
.topnav nav a:hover::after { transform: scaleX(1); }
.topnav nav a.active { opacity: 1; }
.topnav nav a.active::after { transform: scaleX(1); }

/* Hamburger (mobile) */
.topnav .hamburger {
  display: none;
  pointer-events: auto;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: inherit;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
}

@media (max-width: 860px) {
  .topnav { padding: 16px var(--page-pad); }
  .topnav nav {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(360px, 84vw);
    background: var(--paper);
    color: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    padding: 80px 36px;
    font-size: 18px;
    letter-spacing: .14em;
    transform: translateX(100%);
    transition: transform .4s ease;
    box-shadow: -20px 0 60px rgba(0,0,0,.2);
  }
  .topnav nav a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--rule); }
  .topnav nav a::after { display: none; }
  .topnav.menu-open nav { transform: translateX(0); }
  .topnav .hamburger { display: inline-flex; align-items: center; gap: 10px; }
  .topnav .hamburger .bars { display: inline-flex; flex-direction: column; gap: 4px; }
  .topnav .hamburger .bars i { display: block; width: 22px; height: 1.5px; background: currentColor; transition: transform .3s ease, opacity .3s ease; }
  .topnav.menu-open .hamburger .bars i:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
  .topnav.menu-open .hamburger .bars i:nth-child(2) { opacity: 0; }
  .topnav.menu-open .hamburger .bars i:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
  .topnav .brand { font-size: 22px; }
}

/* Footer */
.sitefoot {
  background: var(--ink);
  color: var(--paper);
  padding: 80px var(--page-pad) 40px;
}
.sitefoot .foot-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.sitefoot h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 16px;
  font-weight: 500;
}
.sitefoot ul { list-style: none; padding: 0; margin: 0; }
.sitefoot ul li { margin-bottom: 8px; }
.sitefoot ul li a { text-decoration: none; opacity: .75; font-size: 14px; }
.sitefoot ul li a:hover { opacity: 1; }
.sitefoot .foot-mark {
  font-family: var(--serif);
  font-style: italic;
  font-size: 42px;
  line-height: 1;
  letter-spacing: -.02em;
}
.sitefoot .foot-note {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  opacity: .6;
  line-height: 1.7;
  text-transform: uppercase;
}
.sitefoot .foot-btm {
  max-width: var(--maxw);
  margin: 60px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  opacity: .55;
}
@media (max-width: 780px) {
  .sitefoot .foot-grid { grid-template-columns: 1fr 1fr; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 0;
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  text-decoration: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .25s ease, color .25s ease, transform .25s ease;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-solid {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn-solid:hover { background: transparent; color: var(--ink); }
.btn .arr { display: inline-block; transition: transform .25s ease; }
.btn:hover .arr { transform: translateX(4px); }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 1s ease, transform 1s ease; }
.reveal.in { opacity: 1; transform: none; }

/* Parallax helper */
.parallax-img { will-change: transform; transition: transform .1s linear; }

/* Sections */
.section { padding: 120px 0; }
.section-tight { padding: 80px 0; }
@media (max-width: 780px) {
  .section { padding: 80px 0; }
}

/* Page label */
.page-hero {
  padding: 180px var(--page-pad) 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: end;
  border-bottom: 1px solid var(--rule);
  max-width: var(--maxw);
  margin: 0 auto;
}
.page-hero h1 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(56px, 9vw, 140px);
  line-height: .95;
  letter-spacing: -.03em;
  margin: 0;
}
.page-hero .lede {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 44ch;
}
.page-hero .issue {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
}
@media (max-width: 780px) {
  .page-hero { grid-template-columns: 1fr; padding-top: 140px; }
  .page-hero .issue { flex-wrap: wrap; }
}

/* Generic image + caption */
figure.photo { margin: 0; }
figure.photo img {
  display: block;
  width: 100%;
  height: auto;
}
figure.photo figcaption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

/* Utility */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Scrollbars */
::selection { background: var(--ink); color: var(--paper); }