/* =========================================================
   Marcelo Moscone — portfolio
   Single stylesheet. No JS, no build step.
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  color-scheme: light dark;

  --bg:       #fafaf7;
  --fg:       #0b0b0a;
  --muted:    #6e6e68;
  --line:     #e6e5df;
  --surface:  #ffffff;
  --accent:   #e63a17;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo,
               Consolas, monospace;

  --text-xs:   clamp(0.75rem,  0.72rem + 0.15vw, 0.8125rem);
  --text-sm:   clamp(0.8125rem,0.79rem + 0.2vw,  0.875rem);
  --text-base: clamp(0.95rem,  0.9rem  + 0.3vw,  1rem);
  --text-lg:   clamp(1.0625rem,0.98rem + 0.5vw,  1.1875rem);
  --text-xl:   clamp(1.375rem, 1.15rem + 1.2vw,  1.875rem);
  --text-2xl:  clamp(1.875rem, 1.4rem  + 2.4vw,  2.875rem);
  --text-3xl:  clamp(2.375rem, 1.6rem  + 4vw,    4.5rem);

  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --radius:    2px;
  --max-width: 1240px;
  --gutter:    clamp(1.25rem, 4vw, 2.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:      #0a0a09;
    --fg:      #f3f2ec;
    --muted:   #8a8a83;
    --line:    #1f1f1c;
    --surface: #141411;
    --accent:  #ff5a33;
  }
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

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

a   { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
ol, ul { list-style: none; }

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

/* ---------- Shell ---------- */
.shell {
  max-width: var(--max-width);
  padding-inline: var(--gutter);
  margin-inline: auto;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in oklab, var(--bg) 86%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.site-header .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.wordmark {
  font-weight: 500;
  letter-spacing: -0.015em;
  font-size: var(--text-sm);
}

.site-nav {
  display: flex;
  gap: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted);
}

.site-nav a {
  padding-block: 4px;
  transition: color .2s ease;
}
.site-nav a:hover { color: var(--fg); }

/* ---------- Section label ---------- */
.section-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--space-2);
}

.section-label .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- Hero ---------- */
.hero {
  padding-block: clamp(var(--space-16), 12vw, var(--space-32)) var(--space-16);
  max-width: 900px;
}

.hero h1 {
  font-size: var(--text-3xl);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
  text-wrap: balance;
  margin-bottom: var(--space-8);
}

.hero p {
  font-size: var(--text-lg);
  color: var(--muted);
  max-width: 58ch;
  line-height: 1.5;
  text-wrap: pretty;
}

/* ---------- Work list ---------- */
.work { padding-block: var(--space-8) var(--space-16); }

.work-row {
  border-bottom: 1px solid var(--line);
}

.work-row a {
  display: grid;
  grid-template-columns: 72px 1fr auto auto 28px;
  align-items: baseline;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-4);
  margin-inline: calc(var(--space-4) * -1);
  position: relative;
  transition: background .25s ease, padding-left .25s ease;
}

.work-row a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 56%;
  background: var(--accent);
  transform: translateY(-50%) scaleY(0);
  transform-origin: center;
  transition: transform .25s ease;
}

.work-row a:hover,
.work-row a:focus-visible {
  background: color-mix(in oklab, var(--fg) 4%, transparent);
  padding-left: var(--space-6);
}

.work-row a:hover::before,
.work-row a:focus-visible::before {
  transform: translateY(-50%) scaleY(1);
}

.work-row .year {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.work-row .title {
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: -0.015em;
}

.work-row .client,
.work-row .platform {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.work-row .arrow {
  font-family: var(--font-mono);
  color: var(--muted);
  transition: transform .25s ease, color .25s ease;
  justify-self: end;
}

.work-row a:hover .arrow {
  transform: translateX(4px);
  color: var(--accent);
}

@media (max-width: 760px) {
  .work-row a {
    grid-template-columns: 60px 1fr 28px;
    grid-template-rows: auto auto;
    row-gap: var(--space-1);
    column-gap: var(--space-4);
  }
  .work-row .year     { grid-row: 1 / 3; align-self: start; padding-top: 6px; }
  .work-row .title    { grid-column: 2; grid-row: 1; }
  .work-row .client   { grid-column: 2; grid-row: 2; }
  .work-row .platform { display: none; }
  .work-row .arrow    { grid-row: 1 / 3; align-self: center; }
}

/* ---------- About / Contact (2-col grid on wide) ---------- */
.about,
.contact {
  padding-block: var(--space-16);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

@media (min-width: 820px) {
  .about,
  .contact {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: var(--space-12);
    align-items: start;
  }
  .about .section-label,
  .contact .section-label {
    border-bottom: 0;
    padding-bottom: 0;
    margin-top: var(--space-2);
  }
}

.contact { padding-block: var(--space-16) var(--space-24); }

.about-body {
  max-width: 62ch;
  font-size: var(--text-lg);
  line-height: 1.55;
}
.about-body p + p { margin-top: var(--space-6); }

.contact-list {
  display: grid;
  gap: var(--space-3);
}

.contact-list a {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
  display: inline-block;
}

.contact-list a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted);
}

.site-footer .shell {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ---------- Case study ---------- */
.case-header {
  padding-block: var(--space-16) var(--space-8);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-12);
  transition: color .2s ease, gap .2s ease;
}
.back-link:hover { color: var(--fg); gap: var(--space-3); }

.case-title {
  font-size: var(--text-3xl);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
  text-wrap: balance;
  margin-bottom: var(--space-8);
  max-width: 18ch;
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-6);
  padding-block: var(--space-6);
  border-block: 1px solid var(--line);
  font-family: var(--font-mono);
}

.case-meta dt {
  font-size: var(--text-xs);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-1);
}

.case-meta dd {
  font-size: var(--text-sm);
  color: var(--fg);
}

.case-summary {
  padding-block: var(--space-12);
  max-width: 62ch;
  font-size: var(--text-lg);
  line-height: 1.55;
}
.case-summary p + p { margin-top: var(--space-6); }

.case-media {
  display: grid;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
}

.case-figure {
  display: grid;
  gap: var(--space-3);
}

.case-figure .media {
  aspect-ratio: 16 / 10;
  background:
    linear-gradient(135deg,
      color-mix(in oklab, var(--accent) 22%, transparent),
      transparent 55%),
    repeating-linear-gradient(45deg,
      var(--surface), var(--surface) 12px,
      color-mix(in oklab, var(--fg) 4%, transparent) 12px,
      color-mix(in oklab, var(--fg) 4%, transparent) 13px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-4);
  text-align: center;
}

.case-figure .media.tall {
  aspect-ratio: 9 / 16;
  max-width: 360px;
  justify-self: start;
}

.case-figure-row {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.case-figure-row figcaption {
  grid-column: 1 / -1;
}

.case-figure-row .media.tall {
  max-width: none;
  width: 100%;
  justify-self: stretch;
}

@media (max-width: 640px) {
  .case-figure-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.case-figure figcaption {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted);
}

.case-next {
  border-top: 1px solid var(--line);
  padding-block: var(--space-12);
}

.case-next a {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: color .2s ease;
}

.case-next a:hover { color: var(--accent); }

.case-next .label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.case-next .next-title {
  font-size: var(--text-2xl);
  font-weight: 500;
  letter-spacing: -0.025em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  transition: gap .2s ease;
}

.case-next a:hover .next-title { gap: var(--space-4); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}