/* ============================================================
   layout.css — Mosaic grid architecture
   Paradigm: 6-column CSS grid mosaic; no two tiles share same span
   Reading pattern: Cinematic vertical with diagonal eye movement
   Signature moment: Asymmetric tile sizing breaks editorial rhythm
   ============================================================ */

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  background: var(--surface-base);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  padding-bottom: var(--nav-h);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img {
  max-width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* ── Page skeleton ── */
.page-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Mosaic Grid ── */
.mosaic {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--grid-gap);
  padding: var(--grid-gap) var(--grid-gap) 0;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

/* ── Tile base ── */
.tile {
  position: relative;
  overflow: hidden;
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
}

/* ── Hero tile: cols 1–4, tall ── */
.tile--hero {
  grid-column: 1 / 5;
  grid-row: 1 / 3;
  min-height: clamp(360px, 52vh, 600px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--s-8) var(--s-8) var(--s-10);
  background: var(--surface-deep);
  border-color: var(--border-subtle);
}

/* ── Hero media tile: cols 5–6, tall ── */
.tile--hero-media {
  grid-column: 5 / 7;
  grid-row: 1 / 3;
  min-height: clamp(360px, 52vh, 600px);
  background: #0d0d0d;
}

.tile--hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: contrast(1.1) brightness(0.75) grayscale(0.2);
  transition: transform var(--t-slow) var(--ease-out);
}

.tile--hero-media:hover img {
  transform: scale(1.04);
}

/* Green duotone overlay on hero image */
.tile--hero-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(0, 255, 135, 0.08) 0%,
    rgba(0, 0, 0, 0.5) 100%
  );
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 1;
}

/* ── Context tile: cols 1–2 ── */
.tile--context {
  grid-column: 1 / 3;
  padding: var(--s-8) var(--s-6);
  background: var(--surface-raised);
  border-color: var(--border-subtle);
  min-height: 280px;
}

/* ── Reason tiles ── */
.tile--reason-1 {
  grid-column: 3 / 7;
  min-height: 280px;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.tile--reason-2 {
  grid-column: 1 / 4;
  min-height: 260px;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.tile--reason-3 {
  grid-column: 4 / 7;
  min-height: 260px;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.tile--reason-4 {
  grid-column: 1 / 5;
  min-height: 280px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
}

.tile--reason-5 {
  grid-column: 5 / 7;
  min-height: 280px;
  display: flex;
  flex-direction: column;
}

/* ── Product CTA tile: full width ── */
.tile--product {
  grid-column: 1 / 7;
  background: var(--brand-primary);
  border-color: transparent;
  padding: var(--s-16) var(--s-8);
  min-height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* ── Tile inner split: text + image ── */
.tile-body {
  padding: var(--s-6) var(--s-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.tile-img {
  position: relative;
  overflow: hidden;
  min-height: 200px;
}

.tile-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: contrast(1.08) brightness(0.88);
  transition: transform var(--t-slow) var(--ease-out);
}

.tile-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,255,135,0.06) 0%, transparent 60%);
  z-index: 1;
  pointer-events: none;
}

.tile:hover .tile-img img {
  transform: scale(1.04);
}

/* ── Footer tile ── */
.site-footer {
  background: var(--surface-deep);
  border-top: 1px solid var(--border-subtle);
  padding: var(--s-16) var(--page-pad) calc(var(--s-12) + var(--nav-h));
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--s-8);
  margin-bottom: var(--s-8);
  padding-bottom: var(--s-8);
  border-bottom: 1px solid var(--border-subtle);
}

.footer-brand-statement {
  grid-column: 1 / 3;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.footer-bottom {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  letter-spacing: 0.06em;
}

/* ── Inner page layout (contact, privacy, etc.) ── */
.inner-page {
  max-width: 820px;
  margin: 0 auto;
  padding: var(--s-12) var(--page-pad) calc(var(--s-16) + var(--nav-h));
}

.inner-page .card {
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  padding: var(--s-10) var(--s-10);
}

/* ── Responsive: Tablet (768px) ── */
@media (max-width: 900px) {
  .mosaic {
    grid-template-columns: repeat(4, 1fr);
    padding: var(--s-2) var(--s-2) 0;
  }

  .tile--hero         { grid-column: 1 / 5; grid-row: 1 / 2; min-height: 320px; }
  .tile--hero-media   { grid-column: 1 / 5; grid-row: 2 / 3; min-height: 240px; }
  .tile--context      { grid-column: 1 / 3; }
  .tile--reason-1     { grid-column: 3 / 5; grid-template-columns: 1fr; }
  .tile--reason-1 .tile-img { display: none; }
  .tile--reason-2     { grid-column: 1 / 3; grid-template-columns: 1fr; }
  .tile--reason-2 .tile-img { display: none; }
  .tile--reason-3     { grid-column: 3 / 5; grid-template-columns: 1fr; }
  .tile--reason-3 .tile-img { display: none; }
  .tile--reason-4     { grid-column: 1 / 3; grid-template-columns: 1fr; }
  .tile--reason-4 .tile-img { display: none; }
  .tile--reason-5     { grid-column: 3 / 5; }
  .tile--product      { grid-column: 1 / 5; }

  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand-statement { grid-column: 1 / 3; }
}

/* ── Responsive: Mobile (480px) ── */
@media (max-width: 560px) {
  .mosaic {
    grid-template-columns: 1fr;
    gap: var(--s-1);
    padding: var(--s-1) var(--s-1) 0;
  }

  .tile--hero,
  .tile--hero-media,
  .tile--context,
  .tile--reason-1,
  .tile--reason-2,
  .tile--reason-3,
  .tile--reason-4,
  .tile--reason-5,
  .tile--product {
    grid-column: 1 / 2;
    grid-row: auto;
  }

  .tile--reason-1,
  .tile--reason-2,
  .tile--reason-3,
  .tile--reason-4 {
    grid-template-columns: 1fr;
  }

  .tile--reason-1 .tile-img,
  .tile--reason-2 .tile-img,
  .tile--reason-3 .tile-img,
  .tile--reason-4 .tile-img {
    display: none;
  }

  .tile--hero-media { min-height: 220px; }

  .footer-top { grid-template-columns: 1fr; }
  .footer-brand-statement { grid-column: 1 / 2; }

  .inner-page .card { padding: var(--s-6) var(--s-5); }
}