/* =====================================================================
   GLOBAL · Reset, base layout, shared utilities
   ===================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  background: var(--color-stage);
  color: var(--color-paper);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.5;
  background: var(--color-stage);
  color: var(--color-paper);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.is-loading { overflow: hidden; }
body.lenis      { height: auto; }
body.lenis.lenis-smooth { scroll-behavior: auto; }
body.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
body.lenis.lenis-stopped { overflow: hidden; }
body.lenis.lenis-scrolling iframe { pointer-events: none; }

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

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  outline: none;
}

button { cursor: pointer; }

ul, ol, dl, dd {
  margin: 0;
  padding: 0;
  list-style: none;
}

hr {
  border: 0;
  height: 1px;
  background: var(--color-line);
}

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

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ---------- BACKGROUND CANVAS ---------- */

#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.92;
}

.grain {
  position: fixed;
  inset: -50%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.08;
  mix-blend-mode: overlay;
  background-image:
    radial-gradient(rgba(255,255,255,0.6) 1px, transparent 1px),
    radial-gradient(rgba(0,0,0,0.4) 1px, transparent 1px);
  background-size: 3px 3px, 5px 5px;
  background-position: 0 0, 1.5px 1.5px;
  animation: grain 6s steps(8) infinite;
}

@keyframes grain {
  0%   { transform: translate(0, 0); }
  20%  { transform: translate(-2%, 1%); }
  40%  { transform: translate(1%, -2%); }
  60%  { transform: translate(-1%, 2%); }
  80%  { transform: translate(2%, -1%); }
  100% { transform: translate(0, 0); }
}

.dot-grid {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.4;
  background-image: radial-gradient(rgba(245, 241, 232, 0.15) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

main {
  position: relative;
  z-index: 2;
}

/* ---------- LAYOUT WRAPPERS ---------- */

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0 var(--space-6);
  border-bottom: 1px dashed var(--color-line-dark);
  margin-bottom: var(--space-7);
  color: var(--color-gray-200);
}

.section-head--center {
  justify-content: center;
  gap: var(--space-7);
}

/* ---------- UTILS ---------- */

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

.dot-sep {
  color: var(--color-gray-300);
  margin: 0 0.4ch;
}

.ok { color: var(--color-ok); }

/* ---------- BUTTONS ---------- */

.btn {
  --btn-bg: var(--color-paper);
  --btn-fg: var(--color-ink);
  --btn-bd: var(--color-paper);

  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.85em 1.4em;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1.5px solid var(--btn-bd);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
  cursor: pointer;
  transition: transform var(--dur-mid) var(--ease-out-expo),
              background var(--dur-mid) var(--ease-out-expo),
              color var(--dur-mid) var(--ease-out-expo),
              border-color var(--dur-mid) var(--ease-out-expo);
  will-change: transform;
}

.btn svg {
  transition: transform var(--dur-mid) var(--ease-out-expo);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--primary {
  --btn-bg: var(--color-accent);
  --btn-fg: var(--color-paper);
  --btn-bd: var(--color-accent);
}

.btn--primary:hover {
  --btn-bg: var(--color-paper);
  --btn-fg: var(--color-accent);
  --btn-bd: var(--color-paper);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--color-paper);
  --btn-bd: rgba(245,241,232,0.4);
}

.btn--ghost:hover {
  --btn-bg: var(--color-paper);
  --btn-fg: var(--color-ink);
  --btn-bd: var(--color-paper);
}

.btn--block {
  width: 100%;
  justify-content: space-between;
}

/* ---------- STATUS DOT ---------- */

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-ok);
  box-shadow: 0 0 0 0 rgba(46, 168, 91, 0.6);
  animation: pulse-dot 2.4s ease-out infinite;
}

@keyframes pulse-dot {
  0%   { box-shadow: 0 0 0 0 rgba(46, 168, 91, 0.6); }
  70%  { box-shadow: 0 0 0 10px rgba(46, 168, 91, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 168, 91, 0); }
}

/* ---------- BRAND MARK ---------- */

.brand-mark {
  font-family: var(--font-display);
  font-size: var(--text-md);
  letter-spacing: -0.01em;
  color: var(--color-paper);
}

.brand-mark--lg {
  font-size: var(--text-xl);
}

.brand-underline {
  display: block;
  width: 1.5em;
  height: 3px;
  background: var(--color-accent);
  margin-top: 2px;
  transform-origin: left center;
  transition: transform var(--dur-mid) var(--ease-out-expo);
}

.brand-underline--lg {
  width: 2em;
  height: 4px;
}

.nav__brand:hover .brand-underline {
  transform: scaleX(1.6);
}