/* Casa Très — Editorial design system
   ─────────────────────────────────────────── */

:root {
  /* Default: Paper palette */
  --paper: #F2EDE4;
  --paper-2: #E9E2D5;
  --ink: #15140F;
  --ink-2: #2A2820;
  --mute: #75716A;
  --rule: rgba(21, 20, 15, 0.18);
  --accent: oklch(0.55 0.13 40);  /* terracotta */
  --accent-fg: #F2EDE4;

  --bg: var(--paper);
  --fg: var(--ink);

  /* Type stacks */
  --serif: "Instrument Serif", "Newsreader", Georgia, serif;
  --sans: "Geist", ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Density */
  --pad-x: clamp(20px, 4vw, 72px);
  --section-y: clamp(72px, 9vw, 160px);

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

[data-palette="midnight"] {
  --paper: #15140F;
  --paper-2: #1F1D17;
  --ink: #EFE9DE;
  --ink-2: #C7C0B0;
  --mute: #837D71;
  --rule: rgba(239, 233, 222, 0.18);
  --accent: oklch(0.65 0.12 40);
  --accent-fg: #15140F;
  --bg: var(--paper);
  --fg: var(--ink);
}

[data-palette="oxblood"] {
  --paper: #1B0F0E;
  --paper-2: #2A1614;
  --ink: #EFE9DE;
  --ink-2: #D9CFBF;
  --mute: #897A6E;
  --rule: rgba(239, 233, 222, 0.18);
  --accent: oklch(0.62 0.16 28);
  --accent-fg: #1B0F0E;
  --bg: var(--paper);
  --fg: var(--ink);
}

[data-palette="bone"] {
  --paper: #EAE4D5;
  --paper-2: #DFD8C5;
  --ink: #1B1A14;
  --ink-2: #38352B;
  --mute: #6D695F;
  --rule: rgba(27, 26, 20, 0.2);
  --accent: oklch(0.42 0.05 250);  /* deep navy */
  --accent-fg: #EAE4D5;
  --bg: var(--paper);
  --fg: var(--ink);
}

[data-density="airy"]   { --pad-x: clamp(28px, 6vw, 112px); --section-y: clamp(96px, 12vw, 200px); }
[data-density="dense"]  { --pad-x: clamp(16px, 3vw, 48px); --section-y: clamp(56px, 7vw, 120px); }

[data-display="newsreader"] { --serif: "Newsreader", "Instrument Serif", Georgia, serif; }
[data-display="cormorant"]  { --serif: "Cormorant Garamond", "Instrument Serif", Georgia, serif; }
[data-display="ibm"]        { --serif: "IBM Plex Serif", "Instrument Serif", Georgia, serif; }

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  font-feature-settings: "ss01", "cv11";
  transition: background-color .4s var(--ease), color .4s var(--ease);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 0; }

::selection { background: var(--fg); color: var(--bg); }

/* Type primitives */
.mono {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}
.mono-sm {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.serif { font-family: var(--serif); font-weight: 400; }
.italic { font-style: italic; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}

.h-display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(56px, 11vw, 184px);
  line-height: 0.92;
  letter-spacing: -0.02em;
}
.h-1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(44px, 7vw, 112px);
  line-height: 0.96;
  letter-spacing: -0.015em;
}
.h-2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 4.5vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.01em;
}
.h-3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.15;
  letter-spacing: -0.005em;
}

.lede {
  font-family: var(--serif);
  font-size: clamp(20px, 1.9vw, 26px);
  line-height: 1.4;
  letter-spacing: -0.005em;
}

.body {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-2);
  text-wrap: pretty;
}

/* Site layout */
.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  padding-inline: var(--pad-x);
}

section {
  padding-block: var(--section-y);
}

/* Top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
}
.topbar-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding-block: 18px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1;
}
.wordmark img.logo-mark {
  height: 26px;
  width: auto;
  display: block;
  /* white-on-transparent logo → invert on light palettes */
  filter: invert(1) brightness(0.05);
  transition: filter .4s var(--ease);
}
.wordmark sup {
  font-family: var(--mono);
  font-size: 9px;
  vertical-align: super;
  margin-left: 2px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

/* On dark palettes the logo is already white — don't invert */
[data-palette="midnight"] .wordmark img.logo-mark,
[data-palette="oxblood"]  .wordmark img.logo-mark {
  filter: none;
}

/* Footer big lockup (the giant logo at end of pages) */
.foot-logo-mark {
  display: block;
  width: 100%;
  max-width: 1080px;
  height: auto;
  margin: 48px auto 0;
  filter: invert(1) brightness(0.05);
  transition: filter .4s var(--ease);
  opacity: 0.96;
}
[data-palette="midnight"] .foot-logo-mark,
[data-palette="oxblood"]  .foot-logo-mark {
  filter: none;
}

/* The F1 section reverses colors locally → invert the topbar treatment isn't needed,
   but if the logo ever appears inside it, force white */
.f1 .wordmark img.logo-mark { filter: none; }
.nav {
  display: flex;
  justify-content: center;
  gap: 32px;
}
.nav a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  position: relative;
  padding-block: 4px;
  transition: color .25s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transition: right .35s var(--ease);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { right: 0; }
.nav a[aria-current="page"] { color: var(--fg); }

.topbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 16px;
  border: 1px solid var(--fg);
  border-radius: 999px;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.topbar-cta:hover { background: var(--fg); color: var(--bg); }

/* Language switcher */
.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  justify-self: end;
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}
.lang-switch button {
  padding: 6px 6px;
  color: var(--mute);
  text-transform: uppercase;
  line-height: 1;
  border-radius: 6px;
  transition: color .2s var(--ease), background .2s var(--ease);
}
.lang-switch button:hover { color: var(--fg); }
.lang-switch button[aria-current="true"] { color: var(--fg); }
.lang-switch .sep { color: var(--rule); pointer-events: none; }
@media (max-width: 540px) {
  .topbar-right { gap: 10px; }
  .lang-switch { font-size: 10px; }
}

/* Marquee */
.marquee {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
  background: var(--paper);
}
.marquee-track {
  display: flex;
  gap: 56px;
  white-space: nowrap;
  padding-block: 14px;
  animation: marquee 60s linear infinite;
  will-change: transform;
}
.marquee[data-speed="fast"] .marquee-track { animation-duration: 35s; }
.marquee-item {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: inline-flex;
  align-items: center;
  gap: 56px;
}
.marquee-item::after {
  content: "✱";
  color: var(--accent);
  font-family: var(--serif);
  font-style: normal;
  font-size: 14px;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* Generic button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 26px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: var(--bg);
  transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn .arrow {
  display: inline-block;
  width: 14px; height: 14px;
  transition: transform .3s var(--ease);
}
.btn:hover .arrow { transform: translate(2px, -2px); }

.btn-ghost {
  background: transparent;
  color: var(--fg);
}
.btn-ghost:hover { background: var(--fg); color: var(--bg); }

.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

/* Rule labels */
.section-head {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) 4fr;
  gap: 32px;
  align-items: baseline;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 48px;
}
@media (max-width: 720px) {
  .section-head { grid-template-columns: 1fr; gap: 8px; }
}

/* Footer */
footer.site-foot {
  border-top: 1px solid var(--rule);
  padding-block: 56px 28px;
  margin-top: auto;
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
@media (max-width: 720px) {
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
.foot-grid h4 {
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 500;
}
.foot-grid a { display: block; padding-block: 4px; }
.foot-grid a:hover { color: var(--accent); }
.foot-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}
.foot-wordmark {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(64px, 14vw, 220px);
  line-height: 0.85;
  letter-spacing: -0.02em;
  margin: 48px 0 0;
  color: var(--fg);
  opacity: 0.96;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: none;
}
[data-motion="low"] .reveal { transition-duration: .4s; transform: none; }
[data-motion="low"] .marquee-track { animation-duration: 90s; }
[data-motion="off"] .reveal { opacity: 1; transform: none; transition: none; }
[data-motion="off"] .marquee-track { animation: none; }

/* Utilities */
.cap { font-variant-caps: all-petite-caps; letter-spacing: 0.08em; }
.amp { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--accent); }