/* ============================================================
   PASTURE — Design System
   ============================================================ */

/* ------------------------------------------------------------
   2. Design Tokens
   ------------------------------------------------------------ */

:root {
  /* Colors */
  --color-bg: #74848c;
  --color-primary: #ffffff;
  --color-secondary: #dde3e4;
  --color-tertiary: #bec9ce;

  /* Typography — sizes/weights from tokens.css; page-specific overrides here */
  --tracking-lg: -0.352px;
  --tracking-sm: -0.288px;

  /* Grid */
  --margin: 20px;
  --gutter: 20px;

  /* Range label typewriter */
  --typein-duration: 150ms;
  --typein-stagger: 12ms;
  --typeout-duration: 30ms;
  --typeout-stagger: 6ms;
  --type-spacing-wide: 0.22em;
}

/* ------------------------------------------------------------
   3. Page Transitions  (MPA View Transitions API)
   Cross-document fade: old page dissolves, new page's .enter
   animations handle the content entrance.
   ------------------------------------------------------------ */

@view-transition {
  navigation: auto;
}

@keyframes vt-fade-out {
  to { opacity: 0; }
}

@keyframes vt-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

::view-transition-old(root) {
  animation: vt-fade-out 400ms ease forwards;
}

::view-transition-new(root) {
  animation: vt-fade-in 400ms ease forwards;
}

/* ------------------------------------------------------------
   4. Entrance Animation
   ------------------------------------------------------------ */

@keyframes enter {
  from {
    opacity: 0;
    filter: blur(6px);
    -webkit-filter: blur(6px);
  }
  to {
    opacity: 1;
    filter: blur(0px);
    -webkit-filter: blur(0px);
  }
}

.enter {
  animation: enter 350ms ease-out both;
  -webkit-animation: enter 350ms ease-out both;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  will-change: opacity, filter;
}

/* When returning from another page on the site, skip the staggered delays
   and bring everything in quickly instead of replaying the full sequence. */
.is-return .enter {
  animation-duration: 100ms !important;
  -webkit-animation-duration: 100ms !important;
  animation-delay: 0ms !important;
  -webkit-animation-delay: 0ms !important;
}

/* ------------------------------------------------------------
   4. Reset
   ------------------------------------------------------------ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
}

body {
  min-height: 100%;
  background-color: var(--color-bg);
  color: var(--color-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-lg);
  font-weight: var(--font-regular);
  letter-spacing: var(--tracking-lg);
  line-height: var(--line-height-lg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ------------------------------------------------------------
   4. Page Layout — 6-column grid
   Grid: 6 cols × 1fr | gap: 20px | padding: 0 20px (margin)
   Rows: top-spacer(20svh) | header | mid-gap(20svh) |
         works | flex-gap(1fr) | footnote | bottom-spacer(20svh)
   ------------------------------------------------------------ */

.page {
  min-height: 100svh;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: minmax(40px, 20svh) auto minmax(40px, 20svh) auto minmax(120px, 1fr) auto minmax(20px, 20svh);
  column-gap: var(--gutter);
  padding: 0 var(--margin);
}

/* ------------------------------------------------------------
   5. Logo Mark  (col 1, row 2)
   ------------------------------------------------------------ */

.logo-mark {
  grid-column: 1;
  grid-row: 2;
  align-self: start;
}

.logo-mark svg {
  display: block;
  width: 37.5px;
  height: auto;
}

/* ------------------------------------------------------------
   6. Tagline  (cols 2–3, row 2)
   ------------------------------------------------------------ */

.tagline {
  grid-column: 2 / 4;
  grid-row: 2;
  align-self: start;
  color: var(--color-primary);
}

/* ------------------------------------------------------------
   7. Works Section  (cols 2–4, row 4)
   Uses CSS subgrid to share the page's column tracks.
   ------------------------------------------------------------ */

.works {
  grid-column: 2 / 5;
  grid-row: 4;
  display: grid;
  grid-template-columns: subgrid;
  row-gap: 0;
}

.works-header {
  grid-column: 1;
  color: var(--color-tertiary);
}

.works-list {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  row-gap: 16px;
}

.project-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  line-height: 22px;
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
}

.project-row:hover {
  color: var(--color-tertiary);
}

/* Spacer between year groups */
.project-year-gap {
  grid-column: 1 / -1;
  height: 22px;
}

.project-title {
  grid-column: 1 / 3;
}

.project-year {
  grid-column: 3;
}

.project-range-bracket {
  color: var(--color-tertiary);
  white-space: nowrap;
  transition: color 0.2s ease;
}

.project-row:hover .project-range-bracket {
  color: var(--color-tertiary);
}

.project-row:hover .range-word {
  color: var(--color-primary);
}

.range-label {
  white-space: nowrap;
}

@keyframes enter-char {
  from {
    opacity: 0;
    filter: blur(4px);
    -webkit-filter: blur(4px);
    max-width: 0;
    letter-spacing: var(--type-spacing-wide);
  }
  to {
    opacity: 1;
    filter: blur(0px);
    -webkit-filter: blur(0px);
    max-width: 2em;
    letter-spacing: 0em;
  }
}

@keyframes exit-char {
  from {
    opacity: 1;
    filter: blur(0px);
    -webkit-filter: blur(0px);
    max-width: 2em;
    letter-spacing: 0em;
  }
  to {
    opacity: 0;
    filter: blur(4px);
    -webkit-filter: blur(4px);
    max-width: 0;
    letter-spacing: var(--type-spacing-wide);
  }
}

.range-label .rl {
  display: inline-block;
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  filter: blur(4px);
  -webkit-filter: blur(4px);
  vertical-align: bottom;
}

.project-row.is-hovered .range-label .rl {
  animation: enter-char var(--typein-duration) ease-out both;
  -webkit-animation: enter-char var(--typein-duration) ease-out both;
  animation-delay: calc(var(--i) * var(--typein-stagger));
  -webkit-animation-delay: calc(var(--i) * var(--typein-stagger));
}

.project-row.is-exiting .range-label .rl {
  animation: exit-char var(--typeout-duration) ease-in both;
  -webkit-animation: exit-char var(--typeout-duration) ease-in both;
  animation-delay: calc((var(--total) - 1 - var(--i)) * var(--typeout-stagger));
  -webkit-animation-delay: calc((var(--total) - 1 - var(--i)) * var(--typeout-stagger));
}

.project-range-icon {
  display: inline-block;
  vertical-align: middle;
  position: relative;
  top: -1px;
  width: auto;
  height: 11px;
  margin: 0 3px;
}

/* ------------------------------------------------------------
   8. Footnote  (cols 2–3, row 6)
   ------------------------------------------------------------ */

.footnote {
  grid-column: 2 / 4;
  grid-row: 6;
  display: flex;
  align-items: flex-start;
  gap: 0;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-sm);
  letter-spacing: var(--tracking-sm);
  color: var(--color-secondary);
}

.footnote-asterisk {
  flex-shrink: 0;
  width: 20px;
  color: var(--color-tertiary);
  text-align: center;
}

.footnote-body {
  flex: 1;
}

.footnote-body strong {
  font-weight: var(--font-bold);
  font-style: normal;
}

.footnote-insignia {
  display: inline-block;
  width: auto;
  height: 12px;
  vertical-align: middle;
  position: relative;
  top: -1px;
  margin: 0 0.2em;
}

/* ------------------------------------------------------------
   9. Mobile  (≤768px)
   ------------------------------------------------------------ */

@media (max-width: 768px) {

  /* Switch page from 6-col grid to flex column */
  .page {
    display: flex;
    flex-direction: column;
    padding: 80px 24px 40px;
    min-height: 100svh;
  }

  /* Logo flows naturally at the top */
  .logo-mark {
    grid-column: unset;
    grid-row: unset;
  }

  /* Tagline — 18px, 2 lines wide, gap below logo */
  .tagline {
    grid-column: unset;
    grid-row: unset;
    margin-top: 42px;
    font-size: var(--font-size-lg);
    letter-spacing: -0.288px;
  }

  /* Works section — gap below tagline, override subgrid */
  .works {
    grid-column: unset;
    grid-row: unset;
    display: block;
    margin-top: 54px;
  }

  /* Works list — 2-col: title left, year right */
  .works-list {
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 20px;
    row-gap: 12px;
  }

  .works-header {
    grid-column: 1 / -1;
    font-size: var(--font-size-lg);
    letter-spacing: -0.288px;
  }

  .project-year-gap {
    grid-column: 1 / -1;
  }

  /* Project rows — 2-col subgrid, 18px */
  .project-row {
    grid-column: 1 / -1;
    grid-template-columns: 1fr auto;
    font-size: var(--font-size-lg);
    letter-spacing: -0.288px;
  }

  .project-title {
    grid-column: 1;
  }

  .project-year {
    grid-column: 2;
    text-align: right;
  }

  .project-range-icon {
    height: 10px;
  }

  /* Footnote — 16px, pushed to bottom, asterisk hangs left of margin */
  .footnote {
    grid-column: unset;
    grid-row: unset;
    margin-top: auto;
    padding-top: 60px;
    margin-left: -20px;
    letter-spacing: -0.256px;
  }
}