/* ============================================================
   HELLOMOON.AGENCY — Design tokens & global styles
   ============================================================ */

:root {
  /* Accent — orange dominant, blue as secondary */
  --accent: #FB732A;
  --accent-2: #5B8CFF;
  --accent-ink: #0C0610;

  /* Dark (default) */
  --bg: #07070A;
  --bg-elev: #0E0E13;
  --bg-elev-2: #141419;
  --line: rgba(255,255,255,0.08);
  --line-strong: rgba(255,255,255,0.14);
  --ink: #F4F2EE;
  --ink-dim: #A6A3AC;
  --ink-mute: #6F6C76;

  /* Type */
  --font-display: "Instrument Serif", "Times New Roman", serif;
  --font-sans: "Geist", "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "Geist Mono", "JetBrains Mono", ui-monospace, monospace;

  /* Densité (éditable via Tweaks) */
  --density: 1;            /* 0.85 compact · 1 confort · 1.18 éditorial */
  --space-unit: calc(8px * var(--density));
  --section-y: calc(140px * var(--density));
  --container: 1360px;
  --gutter: clamp(20px, 3vw, 40px);

  /* Grille */
  --grid-gap: calc(24px * var(--density));

  /* Rayons */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;
  --r-pill: 999px;

  /* Easing */
  --ease-out: cubic-bezier(.22,.61,.36,1);
  --ease-in-out: cubic-bezier(.65,.05,.36,1);
}

[data-theme="light"] {
  --bg: #F4F1EC;
  --bg-elev: #ECE8E1;
  --bg-elev-2: #E3DED5;
  --line: rgba(12,6,16,0.10);
  --line-strong: rgba(12,6,16,0.18);
  --ink: #0C0610;
  --ink-dim: #4A4751;
  --ink-mute: #7A7680;
  --accent-ink: #FFFFFF;
}

/* ============================================================ */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv01", "cv11";
  transition: background-color .5s var(--ease-out), color .3s var(--ease-out);
}

body {
  overflow-x: hidden;
  min-height: 100vh;
}

::selection { background: var(--accent); color: var(--accent-ink); }

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

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

button, input, textarea { font-family: inherit; font-size: inherit; color: inherit; }

/* ============================================================
   Background — noise + grille technique + glow d'accent
   ============================================================ */
.bg-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-field .grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 40%, transparent 100%);
  opacity: .55;
}
.bg-field .noise {
  position: absolute; inset: -50%;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.95  0 0 0 0 0.95  0 0 0 0 0.95  0 0 0 0.5 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: .04;
  mix-blend-mode: overlay;
}
.bg-field .glow-a {
  position: absolute;
  width: 900px; height: 900px;
  left: -200px; top: -300px;
  background: radial-gradient(circle, color-mix(in oklch, var(--accent) 45%, transparent) 0%, transparent 60%);
  filter: blur(60px);
  opacity: .55;
}
.bg-field .glow-b {
  position: absolute;
  width: 700px; height: 700px;
  right: -150px; top: 20vh;
  background: radial-gradient(circle, color-mix(in oklch, var(--accent-2) 40%, transparent) 0%, transparent 60%);
  filter: blur(80px);
  opacity: .4;
}

[data-theme="light"] .bg-field .glow-a { opacity: .35; }
[data-theme="light"] .bg-field .glow-b { opacity: .25; }

/* ============================================================
   Layout primitives
   ============================================================ */
.container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section {
  position: relative;
  z-index: 1;
  padding: var(--section-y) 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}
.eyebrow.num {
  color: var(--ink-mute);
}
.eyebrow.num::before { display: none; }

/* ============================================================
   Typography
   ============================================================ */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.98;
  color: var(--ink);
}
.display em {
  font-style: italic;
  color: var(--ink-dim);
  font-weight: 400;
}
.display .mark {
  font-style: italic;
  color: var(--accent);
}

h1.display { font-size: clamp(52px, 8.2vw, 148px); }
h2.display { font-size: clamp(40px, 5.6vw, 96px); }
h3.display { font-size: clamp(28px, 3.2vw, 52px); }

.title-sans {
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.lede {
  font-size: clamp(17px, 1.4vw, 21px);
  line-height: 1.55;
  color: var(--ink-dim);
  max-width: 58ch;
  text-wrap: pretty;
}

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}

/* ============================================================
   Nav
   ============================================================ */
.site-nav {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 80;
  width: min(var(--container), calc(100% - 24px));
  padding: 10px 10px 10px 22px;
  border: 1px solid var(--line);
  background: color-mix(in oklch, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--r-pill);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-nav__menu {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
}
.site-nav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: 18px;
}
.site-nav .brand .moon { color: var(--accent); }
.site-nav nav {
  display: flex;
  gap: 4px;
  font-size: 14px;
  color: var(--ink-dim);
}
.site-nav nav a {
  padding: 9px 14px;
  border-radius: var(--r-pill);
  transition: color .2s var(--ease-out), background-color .2s var(--ease-out);
  position: relative;
}
.site-nav nav a:hover { color: var(--ink); background: color-mix(in oklch, var(--ink) 6%, transparent); }
.site-nav nav a.active { color: var(--ink); }
.site-nav nav a.active::before {
  content: ""; position: absolute;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--accent);
  left: 50%; transform: translateX(-50%);
  bottom: 2px;
}
.site-nav .status {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-right: 6px;
}
.site-nav .status .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 8px #4ADE80;
  animation: pulse 2.4s var(--ease-in-out) infinite;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  border-radius: 999px;
  background: var(--ink);
  transition: transform .2s var(--ease-out), opacity .2s var(--ease-out);
}
.site-nav.is-open .nav-toggle span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.site-nav.is-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-nav.is-open .nav-toggle span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .5; }
}

@media (max-width: 820px) {
  .site-nav { align-items: center; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .site-nav__menu {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: color-mix(in oklch, var(--bg) 92%, transparent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 18px 60px rgba(0,0,0,.35);
  }
  .site-nav.is-open .site-nav__menu { display: flex; }
  .site-nav nav {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .site-nav nav a {
    padding: 14px 16px;
    border-radius: 16px;
    background: color-mix(in oklch, var(--ink) 4%, transparent);
  }
  .site-nav .status {
    display: inline-flex;
    justify-content: flex-start;
    padding: 12px 2px 0;
  }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 22px;
  border: 1px solid var(--line-strong);
  background: var(--bg-elev);
  color: var(--ink);
  border-radius: var(--r-pill);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: transform .3s var(--ease-out), background-color .2s var(--ease-out), border-color .2s var(--ease-out);
  overflow: hidden;
  will-change: transform;
}
.btn:hover { border-color: color-mix(in oklch, var(--ink) 40%, transparent); background: var(--bg-elev-2); }

.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.btn--primary:hover {
  background: color-mix(in oklch, var(--accent) 92%, white);
  border-color: transparent;
}
.btn .arrow {
  display: inline-block;
  transition: transform .3s var(--ease-out);
}
.btn:hover .arrow { transform: translate(2px, -2px); }

.btn .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: currentColor; opacity: .6;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--bg-elev);
  padding: 28px;
  transition: border-color .3s var(--ease-out), transform .4s var(--ease-out);
  overflow: hidden;
}
.card:hover { border-color: var(--line-strong); }

.card .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* ============================================================
   Marquee
   ============================================================ */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 32px 0;
  background: var(--bg);
}
.marquee__track {
  display: flex;
  gap: 80px;
  animation: marquee 42s linear infinite;
  white-space: nowrap;
  width: max-content;
}
.marquee__item {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 88px);
  letter-spacing: -0.02em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 80px;
}
.marquee__item .sep {
  color: var(--accent);
  font-size: 0.6em;
  display: inline-block;
  transform: translateY(-0.2em);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   Text reveal
   ============================================================ */
.reveal {
  --delay: 0ms;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .8s var(--ease-out) var(--delay), transform .8s var(--ease-out) var(--delay);
}
.reveal.in { opacity: 1; transform: none; }

.reveal-chars {
  display: inline-block;
}
.reveal-chars .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(60%);
  transition: opacity .7s var(--ease-out), transform .8s var(--ease-out);
}
.reveal-chars.in .char { opacity: 1; transform: none; }

/* ============================================================
   Page transitions
   ============================================================ */
.page {
  display: none;
  animation: pageIn .5s var(--ease-out);
}
.page.active { display: block; }
@keyframes pageIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ============================================================
   Footer
   ============================================================ */
.site-foot {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line);
  padding: 80px 0 40px;
  margin-top: 80px;
}
.site-foot .wordmark {
  font-family: var(--font-display);
  font-size: clamp(120px, 24vw, 380px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: var(--ink);
  opacity: .95;
  white-space: nowrap;
  margin: 40px 0 20px;
  display: flex;
  align-items: baseline;
  gap: 0.02em;
}
.site-foot .wordmark .i {
  color: var(--accent);
  font-style: italic;
}
.site-foot .wordmark .o-moon {
  position: relative;
  display: inline-block;
}
.site-foot .wordmark .o-moon::after {
  content: "";
  position: absolute;
  width: 0.42em; height: 0.42em;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: -0.08em -0.02em 0 0.01em var(--bg);
  right: 0.14em; top: 0.26em;
}
.site-foot .footer-meta {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
.site-foot .footer-meta h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  margin: 0 0 16px;
  font-weight: 500;
}
.site-foot .footer-meta ul { list-style: none; padding: 0; margin: 0; }
.site-foot .footer-meta li { margin: 8px 0; }
.site-foot .footer-meta a { color: var(--ink-dim); transition: color .2s; }
.site-foot .footer-meta a:hover { color: var(--ink); }
.site-foot .footer-bottom {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-mute);
  text-transform: uppercase; letter-spacing: 0.1em;
  margin-top: 60px; padding-top: 24px;
  border-top: 1px solid var(--line);
}

@media (max-width: 820px) {
  .site-foot .footer-meta { grid-template-columns: 1fr 1fr; }
  .site-foot .wordmark { font-size: 28vw; }
}

/* ============================================================
   Scroll cue
   ============================================================ */
.scroll-cue {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: flex; align-items: center; gap: 10px;
}
.scroll-cue::after {
  content: ""; width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--ink-mute), transparent);
  display: inline-block;
}

/* ============================================================
   Helpers
   ============================================================ */
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gap); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--grid-gap); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--grid-gap); }
.grid-dynamic { display: grid; grid-template-columns: var(--cols, 1fr 1fr); gap: var(--grid-gap); }
.hairline { height: 1px; background: var(--line); width: 100%; }
.spacer-xl { height: calc(120px * var(--density)); }
.spacer-lg { height: 80px; }

@media (max-width: 980px) {
  .grid-2, .grid-3, .grid-4, .grid-dynamic { grid-template-columns: 1fr; }
}

/* Section label pattern */
.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  margin-bottom: 60px;
  align-items: end;
}
@media (max-width: 820px) {
  .section-head { grid-template-columns: 1fr; gap: 24px; }
}