/* ============================================================
   BASE — tokens, reset, typography, shared primitives
   Igor Kravchenko · Film Editor / Editing Director
   ============================================================ */

:root {
  /* ---- colour ---------------------------------------------- */
  --paper:      #F2F0EB;   /* warm white ground                 */
  --paper-2:    #EAE7E0;   /* soft grey surface                 */
  --paper-3:    #DFDBD2;   /* pressed / inset                   */
  --ink:        #1A1A14;   /* warm charcoal, near-black         */
  --ink-70:     #56554C;
  --ink-45:     #8C887E;
  --ink-25:     #B6B2A8;
  --line:       rgba(26, 26, 20, .13);
  --line-soft:  rgba(26, 26, 20, .07);
  --sage:       #6B7A61;   /* muted grey-green accent           */
  --sage-deep:  #3F4A39;
  --sage-tint:  rgba(107, 122, 97, .10);
  --glass:      rgba(247, 246, 242, .58);
  --glass-2:    rgba(238, 236, 230, .74);
  --scrim:      rgba(16, 16, 12, .88);

  --shadow-s: 0 1px 2px rgba(26,26,20,.05), 0 6px 18px rgba(26,26,20,.05);
  --shadow-m: 0 1px 3px rgba(26,26,20,.05), 0 14px 34px rgba(26,26,20,.08);
  --shadow-l: 0 2px 6px rgba(26,26,20,.05), 0 30px 70px rgba(26,26,20,.13);

  /* ---- type ------------------------------------------------ */
  --display: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --body:    "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --fs-wordmark: clamp(3.1rem, 12.6vw, 14.5rem);
  --fs-display:  clamp(2.1rem, 5vw, 4.6rem);
  --fs-h2:       clamp(1.5rem, 2.4vw, 2.15rem);
  --fs-h3:       clamp(1.12rem, 1.5vw, 1.35rem);
  --fs-body:     clamp(.95rem, 1.02vw, 1.0625rem);
  --fs-small:    .8438rem;
  --fs-micro:    .6875rem;

  /* ---- layout ---------------------------------------------- */
  --gutter: clamp(20px, 4vw, 64px);
  --maxw: 1560px;
  --header-h: 74px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-soft: cubic-bezier(.4, 0, .2, 1);

  color-scheme: light;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--fs-body);
  line-height: 1.62;
  font-weight: 400;
  letter-spacing: -.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -.035em;
  line-height: 1.02;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; }
img { max-width: 100%; display: block; }
video { max-width: 100%; display: block; }

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

button {
  font: inherit; color: inherit; background: none;
  text-transform: inherit; letter-spacing: inherit;
  border: 0; padding: 0; margin: 0; cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--sage-deep);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: var(--sage); color: #fff; }

/* ---- shared primitives -------------------------------------- */

.u-mono {
  font-family: var(--mono);
  font-size: var(--fs-micro);
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}

.u-shell {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.u-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 18px;
  font-family: var(--mono);
  font-size: var(--fs-micro);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.u-skip:focus { left: 12px; top: 12px; }

/* film grain — one inline SVG turbulence, no extra request */
.u-grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .34;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}

/* buttons ----------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: var(--fs-micro);
  letter-spacing: .15em;
  text-transform: uppercase;
  padding: 15px 24px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  transition: background .35s var(--ease), color .35s var(--ease),
              border-color .35s var(--ease), transform .35s var(--ease);
  white-space: nowrap;
}
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--sage-deep); border-color: var(--sage-deep); }
.btn--ghost { border-color: var(--line); background: rgba(255,255,255,.42); }
.btn--ghost:hover { border-color: var(--ink); background: rgba(255,255,255,.78); }
.btn__arrow { transition: transform .35s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* section scaffolding ----------------------------------------- */
.section { padding-block: clamp(72px, 9vw, 150px); scroll-margin-top: 70px; }
.section--flush { padding-top: clamp(56px, 6vw, 96px); }
.ph-wrap { margin-top: clamp(22px, 2.6vw, 34px); }

.section__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 27ch);
  gap: clamp(20px, 4vw, 64px);
  align-items: end;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  margin-bottom: clamp(36px, 4.5vw, 68px);
}
.section__index { color: var(--ink-45); display: block; margin-bottom: 18px; }
.section__title { font-size: var(--fs-display); letter-spacing: -.045em; font-weight: 600; text-transform: uppercase; }
.section__lead {
  color: var(--ink-70);
  font-size: var(--fs-small);
  line-height: 1.6;
  max-width: 34ch;
  padding-bottom: .35em;
}

@media (max-width: 760px) {
  .section__head { grid-template-columns: 1fr; align-items: start; gap: 18px; }
  .section__lead { padding-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}