@import url("https://fonts.googleapis.com/css2?family=Chivo:wght@400;700;900&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Unna:ital,wght@0,400;0,700;1,400&display=swap");

/* ==========================================================================
   Deckle
   Two materials, one greyscale ramp, torn transitions, pressed type.
   ========================================================================== */

:root {
  /* Material ------------------------------------------------------------ */
  --color-soot: #191713;
  --color-char: #221f19;
  --color-score: #38332a;
  --color-ash: #8b8376;
  --color-pulp: #b4ac9e;
  --color-bone: #eae3d6;
  --color-oxide: #b4472a;

  /* Semantic ------------------------------------------------------------ */
  --bg: var(--color-soot);
  --surface: var(--color-char);
  --surface-inverse: var(--color-pulp);
  --border: var(--color-score);
  --border-strong: var(--color-bone);
  --text: var(--color-bone);
  --text-muted: var(--color-ash);
  --text-inverse: var(--color-soot);
  --text-inverse-muted: #4b4438;
  --focus: var(--color-bone);
  --error: var(--color-oxide);

  /* Type ---------------------------------------------------------------- */
  --font-grotesque: "Chivo", "Helvetica Neue", Arial, sans-serif;
  --font-editorial: "Unna", Georgia, "Times New Roman", serif;

  --display-xl: 900 clamp(3.75rem, 11vw, 9rem) / 0.85 var(--font-grotesque);
  --display-lg: 900 clamp(2.75rem, 7vw, 5.25rem) / 0.88 var(--font-grotesque);
  --headline-lg: 700 clamp(2rem, 4.2vw, 3.25rem) / 1.02 var(--font-editorial);
  --headline-md: 700 clamp(1.5rem, 2.6vw, 2rem) / 1.1 var(--font-editorial);
  --title-md: 700 1.125rem / 1.3 var(--font-grotesque);
  --lead: 400 clamp(1.125rem, 1.7vw, 1.375rem) / 1.45 var(--font-editorial);
  --body-md: 400 1rem / 1.6 var(--font-grotesque);
  --body-sm: 400 0.875rem / 1.55 var(--font-grotesque);
  --label-sm: 700 0.8125rem / 1.2 var(--font-grotesque);

  --track-display: -0.04em;
  --track-tight: -0.015em;
  --track-label: 0.01em;
  --measure: 62ch;

  /* Space --------------------------------------------------------------- */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 7rem;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --container: 1180px;
  --container-narrow: 720px;
  --section-y: clamp(4.5rem, 9vw, 7.5rem);

  /* Shape --------------------------------------------------------------- */
  --radius-none: 0;
  --radius-sm: 2px;
  --radius-full: 999px;
  --hairline: 1px solid var(--border);
  --rule-strong: 2px solid var(--color-bone);

  /* Impression ---------------------------------------------------------- */
  --deboss: inset 0 2px 0 rgba(0, 0, 0, 0.62), inset 0 -1px 0 rgba(234, 227, 214, 0.07);
  --deboss-deep: inset 0 3px 0 rgba(0, 0, 0, 0.72), inset 0 -1px 0 rgba(234, 227, 214, 0.09);
  --emboss: inset 0 1px 0 rgba(234, 227, 214, 0.55), inset 0 -2px 0 rgba(25, 23, 19, 0.28);
  --press-dark: 0 -1px 0 rgba(0, 0, 0, 0.9), 0 1px 0 rgba(234, 227, 214, 0.17);
  --press-paper: 0 -1px 0 rgba(25, 23, 19, 0.4), 0 1px 0 rgba(255, 255, 255, 0.6);
  --fiber: 2px;

  /* Motion -------------------------------------------------------------- */
  --press: 110ms linear;
}

/* ==========================================================================
   Base
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: var(--body-md);
  letter-spacing: var(--track-label);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1,
h2,
h3,
h4,
p,
figure,
blockquote {
  margin: 0;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

::selection {
  background: var(--color-bone);
  color: var(--color-soot);
}

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

/* The whole sheet carries one fine grain. Never add a second texture. */
.grain::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.55;
  mix-blend-mode: overlay;
  background-image:
    radial-gradient(rgba(234, 227, 214, 0.5) 0.5px, transparent 0.6px),
    radial-gradient(rgba(0, 0, 0, 0.55) 0.5px, transparent 0.6px);
  background-size: 3px 3px, 4px 4px;
  background-position: 0 0, 2px 1px;
}

/* ==========================================================================
   Typography
   ========================================================================== */

.display {
  font: var(--display-xl);
  letter-spacing: var(--track-display);
  text-transform: lowercase;
  margin: 0;
}

.display--sm {
  font: var(--display-lg);
  letter-spacing: var(--track-display);
}

.headline {
  font: var(--headline-lg);
  letter-spacing: var(--track-tight);
  margin: 0;
}

.headline--sm {
  font: var(--headline-md);
  letter-spacing: var(--track-tight);
}

.title {
  font: var(--title-md);
  letter-spacing: var(--track-label);
  margin: 0;
}

.lead {
  font: var(--lead);
  max-width: var(--measure);
  color: var(--text);
}

.body {
  font: var(--body-md);
  max-width: var(--measure);
}

.body--sm {
  font: var(--body-sm);
}

.muted {
  color: var(--text-muted);
}

.label {
  font: var(--label-sm);
  letter-spacing: var(--track-label);
  color: var(--text-muted);
}

.quote {
  font: 400 clamp(1.375rem, 2.6vw, 2rem) / 1.25 var(--font-editorial);
  font-style: italic;
  letter-spacing: var(--track-tight);
  max-width: 26ch;
  border-left: var(--rule-strong);
  padding-left: var(--space-lg);
}

/* Blind deboss: the letterform is the material, read only by its edges.
   One block per page. Never body copy, never below 2rem. */
.pressed {
  color: var(--color-char);
  text-shadow: var(--press-dark);
}

.pressed--paper {
  color: var(--color-pulp);
  text-shadow: var(--press-paper);
}

/* ==========================================================================
   Layout
   ========================================================================== */

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

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: var(--section-y);
}

.section--tight {
  padding-block: var(--space-xl);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap, var(--space-md));
}

.stack--lg {
  --stack-gap: var(--space-lg);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
}

.grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr));
}

.grid--2 {
  --cols: 2;
}

.grid--4 {
  --cols: 4;
}

/* Editorial asymmetry: statement left, detail right. Never a 50/50 split. */
.split {
  display: grid;
  gap: clamp(var(--space-lg), 5vw, var(--space-xl));
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr);
  align-items: start;
}

.split--reverse {
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
}

.rule {
  height: 0;
  border: 0;
  border-top: var(--hairline);
  margin: 0;
}

/* ==========================================================================
   Materials and the tear
   ========================================================================== */

.material-soot {
  background: var(--color-soot);
  color: var(--text);
}

.material-char {
  background: var(--color-char);
  color: var(--text);
}

/* Paper material. Everything inside flips to ink-on-paper values. */
.material-pulp {
  background: var(--color-pulp);
  color: var(--text-inverse);
  --text: var(--color-soot);
  --text-muted: var(--text-inverse-muted);
  --border: rgba(25, 23, 19, 0.28);
  --surface: #c2bbae;
  --focus: var(--color-soot);
}

.material-bone {
  background: var(--color-bone);
  color: var(--text-inverse);
  --text: var(--color-soot);
  --text-muted: var(--text-inverse-muted);
  --border: rgba(25, 23, 19, 0.24);
  --surface: #ded6c8;
  --focus: var(--color-soot);
}

/* The tear. A structural event, not an ornament. Max two per page.
   The drop-shadow is the bright fiber left standing along the rip. */
.tear {
  --tear-shape: polygon(
    0 7px, 1.5% 12px, 3.2% 5px, 5% 9px, 6.1% 3px, 8.4% 14px, 10% 8px, 11.3% 4px,
    13.8% 11px, 16% 6px, 17.2% 15px, 19.5% 9px, 21% 3px, 23.4% 8px, 25.1% 13px,
    27% 6px, 29.3% 10px, 31% 4px, 33.6% 12px, 35% 7px, 37.2% 16px, 39.5% 9px,
    41% 5px, 43.8% 11px, 45.4% 6px, 47% 14px, 49.6% 8px, 51% 3px, 53.5% 10px,
    55.2% 15px, 57% 7px, 59.4% 12px, 61% 5px, 63.7% 9px, 65.3% 14px, 67% 6px,
    69.5% 11px, 71.2% 4px, 73% 13px, 75.6% 8px, 77% 16px, 79.3% 10px, 81% 5px,
    83.5% 12px, 85.1% 7px, 87% 15px, 89.4% 9px, 91% 4px, 93.6% 11px, 95.2% 6px,
    97% 13px, 98.5% 8px, 100% 12px, 100% 100%, 0 100%
  );
  position: relative;
  display: block;
  width: 100%;
  height: var(--tear-height, 2.25rem);
  /* Filter sits on the wrapper and the clip on the child, because a filter
     applies before clip-path and would otherwise cut the fiber away. */
  filter: drop-shadow(0 calc(var(--fiber) * -1) 0 var(--color-bone));
}

.tear::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--tear-fill, var(--color-pulp));
  clip-path: var(--tear-shape);
}

/* Second rip, so the two tears on a page never repeat the same fiber. */
.tear--b {
  --tear-shape: polygon(
    0 11px, 2.2% 4px, 3.9% 14px, 5.6% 7px, 7.8% 16px, 9.1% 9px, 11.4% 3px,
    13% 12px, 15.7% 6px, 17.3% 15px, 19% 8px, 21.6% 13px, 23.2% 5px, 25% 10px,
    27.5% 16px, 29.1% 7px, 31.4% 12px, 33% 4px, 35.8% 14px, 37.2% 9px,
    39.6% 17px, 41.3% 6px, 43% 11px, 45.7% 3px, 47.4% 13px, 49% 8px, 51.5% 15px,
    53.2% 5px, 55% 10px, 57.6% 16px, 59.3% 7px, 61% 12px, 63.4% 4px, 65.1% 14px,
    67.8% 9px, 69.2% 17px, 71% 6px, 73.5% 11px, 75.1% 3px, 77% 13px, 79.4% 8px,
    81.2% 15px, 83% 5px, 85.6% 10px, 87.3% 16px, 89% 7px, 91.4% 12px, 93.1% 4px,
    95% 14px, 97.2% 9px, 98.6% 15px, 100% 6px, 100% 100%, 0 100%
  );
}

/* Rip pointing the other way: paper above, board below. */
.tear--up {
  transform: scaleY(-1);
}

.tear--soot {
  --tear-fill: var(--color-soot);
}

.tear--bone {
  --tear-fill: var(--color-bone);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  min-height: 48px;
  padding: 0 var(--space-lg);
  border: 0;
  border-radius: var(--radius-none);
  font: 700 0.9375rem / 1 var(--font-grotesque);
  letter-spacing: var(--track-label);
  cursor: pointer;
  transition: background-color var(--press), color var(--press),
    box-shadow var(--press), border-color var(--press);
}

.btn--primary {
  background: var(--color-bone);
  color: var(--color-soot);
  box-shadow: var(--emboss);
}

.btn--primary:hover {
  background: var(--color-pulp);
}

.btn--primary:active {
  transform: translateY(1px);
  box-shadow: var(--deboss-deep);
  background: var(--color-pulp);
}

.btn--secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--secondary:hover {
  border-color: var(--color-ash);
  background: rgba(234, 227, 214, 0.05);
}

.btn--secondary:active {
  transform: translateY(1px);
  box-shadow: var(--deboss);
}

.btn--danger {
  background: transparent;
  color: var(--color-oxide);
  border: 1px solid var(--color-oxide);
}

.btn--danger:hover {
  background: var(--color-oxide);
  color: var(--color-bone);
}

.btn[disabled],
.btn[aria-disabled="true"] {
  color: var(--color-ash);
  background: var(--color-char);
  border-color: var(--border);
  box-shadow: none;
  cursor: not-allowed;
}

/* The seal: the only circle the system allows besides avatars. */
.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-full);
  background: var(--color-bone);
  color: var(--color-soot);
  cursor: pointer;
  box-shadow: var(--emboss);
  transition: background-color var(--press), box-shadow var(--press);
}

.seal:hover {
  background: var(--color-pulp);
}

.seal:active {
  transform: translateY(1px);
  box-shadow: var(--deboss-deep);
}

.seal--outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}

.seal--lg {
  width: 72px;
  height: 72px;
}

.icon {
  font-size: 1.25rem;
  line-height: 1;
}

.icon--sm {
  font-size: 1rem;
}

/* ==========================================================================
   Forms
   ========================================================================== */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.field__label {
  font: var(--label-sm);
  letter-spacing: var(--track-label);
  color: var(--text);
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.875rem var(--space-md);
  background: var(--surface);
  color: var(--text);
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--deboss);
  font: var(--body-md);
  letter-spacing: var(--track-label);
  transition: border-color var(--press), box-shadow var(--press);
}

.textarea {
  min-height: 8rem;
  resize: vertical;
}

.select {
  appearance: none;
  padding-right: 2.5rem;
}

.input::placeholder,
.textarea::placeholder {
  color: var(--text-muted);
}

/* Focus is a printed rule under the field, never a glow. */
.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-bottom: 2px solid var(--focus);
  padding-bottom: calc(0.875rem - 1px);
}

.field__hint {
  font: var(--body-sm);
  color: var(--text-muted);
}

.field--error .input,
.field--error .textarea,
.field--error .select {
  border-bottom-color: var(--error);
}

.field--error .field__hint {
  color: var(--error);
}

/* Checkbox: an 18px square plate, checked by filling it solid. */
.checkbox {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
  font: var(--body-md);
}

.checkbox__box {
  appearance: none;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 0.2rem 0 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-none);
  box-shadow: var(--deboss);
  cursor: pointer;
  display: grid;
  place-content: center;
  transition: background-color var(--press), border-color var(--press);
}

.checkbox__box::after {
  content: "";
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--color-soot);
  border-bottom: 2px solid var(--color-soot);
  transform: rotate(-45deg) translate(1px, -1px);
  opacity: 0;
}

.checkbox__box:checked {
  background: var(--color-bone);
  border-color: var(--color-bone);
  box-shadow: var(--emboss);
}

.checkbox__box:checked::after {
  opacity: 1;
}

/* ==========================================================================
   Cards and lists
   ========================================================================== */

.card {
  padding: clamp(var(--space-lg), 3vw, 2.5rem);
  background: var(--color-char);
  border: var(--hairline);
  border-radius: var(--radius-none);
}

/* Emphasis card: torn out of the board as paper. Use once per grid at most. */
.card--pulp {
  background: var(--color-pulp);
  border-color: transparent;
  color: var(--text-inverse);
  --text: var(--color-soot);
  --text-muted: var(--text-inverse-muted);
  --border: rgba(25, 23, 19, 0.28);
}

.card--bare {
  padding: 0;
  background: transparent;
  border: 0;
  border-top: var(--rule-strong);
  padding-top: var(--space-md);
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--hairline);
}

.list__row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 1.25rem 0;
  border-bottom: var(--hairline);
}

.list__row > :last-child {
  margin-left: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font: var(--body-sm);
}

.table th {
  font: var(--label-sm);
  letter-spacing: var(--track-label);
  color: var(--text-muted);
  text-align: left;
  padding: 0 var(--space-md) 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.table td {
  padding: 1.25rem var(--space-md) 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

.table tr:last-child td {
  border-bottom: 0;
}

/* Status is state, never decoration. Text plus a mark, no pill. */
.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font: var(--label-sm);
  color: var(--text);
}

.status::before {
  content: "";
  width: 8px;
  height: 8px;
  background: currentColor;
}

.status--idle {
  color: var(--text-muted);
}

.status--error {
  color: var(--error);
}

/* ==========================================================================
   Tabs
   ========================================================================== */

.tabs {
  display: flex;
  gap: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.tab {
  appearance: none;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 0 0 0.875rem;
  color: var(--text-muted);
  font: var(--label-sm);
  letter-spacing: var(--track-label);
  cursor: pointer;
  transition: color var(--press), border-color var(--press);
}

.tab:hover {
  color: var(--text);
}

.tab[aria-selected="true"],
.tab.is-active {
  color: var(--text);
  border-bottom-color: var(--color-bone);
}

/* ==========================================================================
   Imagery
   ========================================================================== */

.figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--color-char);
  border-radius: var(--radius-none);
}

.figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) sepia(0.22) contrast(1.32) brightness(0.9);
}

.figure--tall {
  aspect-ratio: 3 / 4;
}

.figure--wide {
  aspect-ratio: 16 / 9;
}

/* Screenprint plate: a dot grid burned over the duotone. */
.figure--halftone::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  mix-blend-mode: multiply;
  opacity: 0.5;
  background-image: radial-gradient(
    circle,
    var(--color-soot) 38%,
    transparent 42%
  );
  background-size: 5px 5px;
}

.figure__caption {
  padding-top: 0.75rem;
  font: var(--body-sm);
  color: var(--text-muted);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  filter: grayscale(1) contrast(1.2);
}

/* ==========================================================================
   Identity
   ========================================================================== */

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font: 900 1.375rem / 1 var(--font-grotesque);
  letter-spacing: -0.045em;
  text-transform: lowercase;
  color: var(--text);
  text-decoration: none;
}

.wordmark__seal {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
}

.wordmark__seal svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding-block: var(--space-lg);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav a {
  font: var(--label-sm);
  letter-spacing: var(--track-label);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--press);
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--text);
}

.site-footer {
  padding-block: var(--space-xl) var(--space-lg);
  border-top: 1px solid var(--border);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .split,
  .split--reverse,
  .grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .grid--2,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .grid--2,
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .quote {
    padding-left: var(--space-md);
  }

  .nav {
    gap: var(--space-md);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 1ms !important;
  }
}