*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  font-size: var(--fs-md);
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
  transition: background-color var(--t-slow) var(--ease-out), color var(--t-slow) var(--ease-out);
}
img, video, svg, canvas { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--accent); color: var(--on-ember); }

/* Atmosphere: soft glows + film grain, fixed behind everything */
.atmosphere {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden;
}
.atmosphere::before, .atmosphere::after {
  content: ""; position: absolute; width: 70vmax; height: 70vmax; border-radius: 50%;
  filter: blur(90px); opacity: 1; animation: drift 28s var(--ease-in-out) infinite alternate;
}
.atmosphere::before { background: radial-gradient(circle, var(--bg-glow-1), transparent 62%); top: -35vmax; right: -20vmax; }
.atmosphere::after { background: radial-gradient(circle, var(--bg-glow-2), transparent 62%); bottom: -40vmax; left: -25vmax; animation-delay: -12s; }
.grain {
  position: fixed; inset: -50%; z-index: -1; pointer-events: none; opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation: grain 1.2s steps(6) infinite;
}
@keyframes drift { to { transform: translate3d(6vmax, 4vmax, 0) scale(1.08); } }
@keyframes grain {
  0% { transform: translate(0, 0); } 20% { transform: translate(-3%, 2%); } 40% { transform: translate(2%, -3%); }
  60% { transform: translate(-2%, -1%); } 80% { transform: translate(3%, 3%); } 100% { transform: translate(0, 0); }
}

/* Typography */
.display {
  font-stretch: var(--display-stretch);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.02;
  margin: 0;
}
h1, h2, h3, h4 { margin: 0; font-stretch: 110%; letter-spacing: -0.015em; line-height: 1.15; }
h1 { font-size: var(--fs-3xl); font-weight: 800; }
h2 { font-size: var(--fs-2xl); font-weight: 750; }
h3 { font-size: var(--fs-xl); font-weight: 700; }
h4 { font-size: var(--fs-lg); font-weight: 700; }
p { margin: 0; }
.eyebrow {
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent-ink); font-stretch: 112%;
}
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); }
.num { font-variant-numeric: tabular-nums; font-stretch: 105%; }
.gradient-text {
  background: linear-gradient(100deg, var(--ember-1), var(--ember-2) 45%, #FFB04D);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ------------------------------ App shell ------------------------------ */
.shell { display: grid; grid-template-columns: 1fr; min-height: 100dvh; }
.shell-main {
  padding: calc(env(safe-area-inset-top) + var(--s5)) var(--s4) calc(96px + env(safe-area-inset-bottom));
  width: 100%; max-width: 1180px; margin: 0 auto;
}
.sidebar { display: none; }

@media (min-width: 960px) {
  .shell { grid-template-columns: 264px 1fr; }
  .shell-main { padding: var(--s8) var(--s10) var(--s12); }
  .sidebar {
    display: flex; flex-direction: column; gap: var(--s2);
    position: sticky; top: 0; height: 100dvh; padding: var(--s6) var(--s4);
    border-right: 1px solid var(--line);
    background: linear-gradient(180deg, var(--glass), transparent);
    backdrop-filter: blur(18px) saturate(1.3);
  }
  .bottom-nav { display: none !important; }
}

.page { display: grid; gap: var(--s6); }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--s4); flex-wrap: wrap; }
.grid-2 { display: grid; gap: var(--s4); grid-template-columns: 1fr; }
.grid-3 { display: grid; gap: var(--s4); grid-template-columns: 1fr; }
.grid-4 { display: grid; gap: var(--s3); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); gap: var(--s4); }
}
.row { display: flex; align-items: center; gap: var(--s3); }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: var(--s3); }
.stack { display: grid; gap: var(--s3); }
.stack-lg { display: grid; gap: var(--s5); }
.wrap { flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }

/* ------------------------------ Motion ------------------------------ */
.rise { animation: rise var(--t-slow) var(--ease-out) both; animation-delay: calc(var(--i, 0) * 55ms); }
@keyframes rise { from { opacity: 0; transform: translate3d(0, 14px, 0) scale(.985); filter: blur(4px); } to { opacity: 1; transform: none; filter: none; } }
.fade { animation: fade var(--t-med) var(--ease-out) both; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse-ring { 0% { box-shadow: 0 0 0 0 rgba(255, 91, 36, .45); } 100% { box-shadow: 0 0 0 18px rgba(255, 91, 36, 0); } }
@keyframes shimmer { to { background-position: -200% 0; } }
@keyframes flicker {
  0%, 100% { transform: scale(1) rotate(-2deg); filter: drop-shadow(0 0 6px rgba(255, 122, 61, .55)); }
  50% { transform: scale(1.08) rotate(2deg); filter: drop-shadow(0 0 12px rgba(255, 122, 61, .85)); }
}

/* Page transitions (View Transitions API) */
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 420ms; animation-timing-function: cubic-bezier(.16, 1, .3, 1); }
::view-transition-old(root) { animation-name: vt-out; }
::view-transition-new(root) { animation-name: vt-in; }
:root[data-nav="back"]::view-transition-old(root) { animation-name: vt-out-back; }
:root[data-nav="back"]::view-transition-new(root) { animation-name: vt-in-back; }
@keyframes vt-out { to { opacity: 0; transform: translate3d(-3%, 0, 0) scale(.985); filter: blur(3px); } }
@keyframes vt-in { from { opacity: 0; transform: translate3d(4%, 0, 0) scale(.99); filter: blur(3px); } }
@keyframes vt-out-back { to { opacity: 0; transform: translate3d(3%, 0, 0) scale(.985); filter: blur(3px); } }
@keyframes vt-in-back { from { opacity: 0; transform: translate3d(-4%, 0, 0) scale(.99); filter: blur(3px); } }
/* Theme switch: circular reveal from the toggle */
:root[data-vt="theme"]::view-transition-old(root) { animation: none; }
:root[data-vt="theme"]::view-transition-new(root) { animation: theme-reveal 700ms var(--ease-out); }
@keyframes theme-reveal { from { clip-path: circle(0 at var(--vt-x, 50%) var(--vt-y, 50%)); } to { clip-path: circle(150vmax at var(--vt-x, 50%) var(--vt-y, 50%)); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
  .grain, .atmosphere::before, .atmosphere::after { animation: none !important; }
}

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }