/* ========================================
   1. DESIGN TOKENS
   ======================================== */
:root {
  /* Colors */
  --color-paper: #111111;
  --color-ink: #ccc;
  --color-muted: #aaa;
  --color-accent: rgba(244, 67, 54, 1);
  --color-tag-active-line: var(--color-line);
  --color-tag-active: rgba(244, 67, 54, .4);
  --color-tag-hover: rgba(244, 67, 54, .15);
  --color-line: #ccc;
  --color-tag-active-text: #f5f3ed;
  /* Typography */
  --font-display: Outfit, sans-serif;
  --font-body: EB Garamond, serif;
  --text-h1: 6.8535rem;
  --text-h2: 4.2358rem;
  --text-h3: 2.6179rem;
  --text-h4: 1.618rem;
  --text-h5: 1.409rem;
  --text-h6: 1.204rem;
  --text-body: 1rem;
  --text-small: 0.8rem;
  /* Layout */
  --page-gutter: clamp(1rem, 2vw, 3rem);
  --content-width: 100rem;
  --section-gap: var(--page-gutter);
  /* Motion */
  --transition-fast: 180ms ease;
}
/* ========================================
   2. RESET AND GLOBAL STYLES
   ======================================== */
* {
  box-sizing: border-box;
}
html {
  font-size: 112.5%; /* 18px when browser default is 16px */
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.5;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  color: inherit;
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
::selection {
  background: var(--color-accent);
  color: var(--color-paper);
}
/* ========================================
   3. TYPE SCALE
   ======================================== */
h1, h2, h3, h4, h5, h6, p {
  margin-top: 0;
}
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 0.75em;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.1;
}
h1 {
  font-size: clamp(2.4rem, 10.28vw, var(--text-h1));
}

h3 {
  font-size: clamp(1.48rem, 6.35vw, var(--text-h3));
}
h2 {
  font-size: var(--text-h2);
}
h4 {
  font-size: var(--text-h4);
}
h5 {
  font-size: var(--text-h5);
}
h6 {
  font-size: var(--text-h6);
}
p {
  font-size: var(--text-body);
}
small,
.text-small {
  font-size: var(--text-small);
}

/* ========================================
   4. PAGE LAYOUT
   ======================================== */
main {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}
/* ========================================
   5. INTRODUCTION
   ======================================== */
.intro {
  min-height: 15vh;
  min-height: 15svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--page-gutter);
}

div.intro-headline {
  --headline-scale: clamp(0.35, calc(100vw / 1200), 1);
}

.intro-headline {
  font-kerning: normal;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin: 0 0 0 -.205rem;
  font-family: var(--font-display);
  padding: 0;
  /* font-size: var(--text-h1); */
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: 0em;
  text-transform: uppercase;
}
h3.intro-headline {
  letter-spacing: .1rem;
}
.intro-h1 {
  margin: 0 0 0 -.515rem !important;
}
.intro-headline {
  display: block;
  max-width: 100%;
}
.intro-headline .accent {
  color: var(--color-accent);
}
.intro-description {
  max-width: 60rem;
  margin: 0;
  padding: 1rem 0;
  color: var(--color-muted);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.6;
}
/* ========================================
   6. STICKY IDENTITY + TAG NAVIGATION
   ======================================== */
.portfolio-sticky {
  position: sticky;
  top: 0;
  z-index: 100;
  /*
  margin-inline: calc(-1 * var(--page-gutter));
  padding: 0 var(--page-gutter) 0.75rem;
  */
  background: var(--color-paper);
  border-bottom: 0.0625rem solid var(--color-line);
}
.portfolio-sticky.is-stuck {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.sticky-header {
  display: none;
  align-items: center;
  flex: 0 0 auto;
  min-height: 3.5rem;
}
.site-name {
  font-family: var(--font-display);
  font-size: 2.6179rem;
  font-weight: 900;
  letter-spacing: -0.025em;
  text-transform: uppercase;
}
.portfolio-sticky.is-stuck .sticky-header {
  display: flex;
  animation: sticky-header-in 250ms ease both;
}
@keyframes sticky-header-in {
  from {
    opacity: 0;
    transform: translateY(-0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.sticky-sentinel {
  height: 1px;
  margin-bottom: -1px;
}
.tag-nav {
  display: flex;
  flex: 0 1 auto;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  padding-block: 1rem 1rem;
}
.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  padding: 0.45rem 0.85rem;
  border: 0.0625rem solid var(--color-line);
  border-radius: 999px;
  background: transparent;
  color: var(--color-ink);
  font-size: var(--text-small);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.05em;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
}
/* Default tag hover */
.tag:hover {
  border-color: var(--color-accent);
  background: var(--color-tag-hover);
  color: var(--color-ink);
}
/* Active tag */
.tag.is-active {
  border-color: var(--color-tag-active-line);
  background: var(--color-tag-active);
  color: var(--color-tag-active-text);
}
/* Hovering an active tag */
.tag.is-active:hover {
  border-color: var(--color-accent);
  background: var(--color-tag-active);
  color: var(--color-tag-active-text);
}
/* Keyboard focus */
.tag:focus-visible {
  outline: 0.125rem solid var(--color-accent);
  outline-offset: 0.1875rem;
}
/* ========================================
   7. PORTFOLIO GRID
   ======================================== */
.portfolio {
  padding-block: 2rem var(--section-gap);
}
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem 1.5rem;
}
.project-card {
  min-width: 0;
}
/* Project covers: equal-height, responsive crops */
.project-thumbnail {
  display: block;
  width: 100%;
  height: clamp(12rem, 28vw, 24rem);
  object-fit: cover;
  object-position: center;
}
.project-link {
  display: block;
}
.project-placeholder {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  aspect-ratio: 1.8 / 1;
  padding: 1rem;
  overflow: hidden;
  background: var(--color-line);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-h5);
  line-height: 1;
  transition: background var(--transition-fast);
}
.project-link:hover .project-placeholder {
  background: #c9c5b9;
}
.project-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.85rem;
}
.project-info h2 {
  margin: 0;
  font-family:;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  text-transform: uppercase;
}
.project-arrow {
  flex-shrink: 0;
  font-size: 1.25rem;
  transition: transform var(--transition-fast);
}
.project-link:hover .project-arrow {
  transform: translate(0.1875rem, -0.1875rem);
}
.project-tags {
  margin: 0 0;
  color: var(--color-muted);
  font-size: var(--text-small);
  line-height: 1.5;
}
/* ========================================
   8. FOOTER
   ======================================== */
.site-footer {
  max-width: var(--content-width);
  margin-inline: auto;
  padding: 1.5rem var(--page-gutter) 2rem;
  border-top: 0.0625rem solid var(--color-line);
  color: var(--color-muted);
  font-size: var(--text-small);
}
.site-footer p {
  margin: 0;
}
/* ========================================
   9. RESPONSIVE STYLES
   ======================================== */
/*
   @media (max-width: 56.25rem) {
  .intro-headline {
    font-size: clamp(3.5rem, 10vw, 6.5rem);
  }
}
*/
/* ========================================
   9.1. PORTFOLIO STICKY RESPONSIVE
   ======================================== */
@media (max-width: 80rem) {
  .portfolio-sticky.is-stuck {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .portfolio-sticky.is-stuck .sticky-header {
    min-height: auto;
  }

  .portfolio-sticky.is-stuck .tag-nav {
    width: 100%;
    padding-block: 0rem 1rem;
  }
}

@media (max-width: 37.5rem) {
  :root {
    --page-gutter: 1.1rem;
  }
  .intro {
    min-height: 30svh;
    padding: .3rem;
  }

  h1 {
    font-size: 2.5em;
  }
  h3 {
    font-size: 1.25em;
  }
 .intro-headline {
    line-height: 0.88;
    letter-spacing: -0.035em;
  }
  .portfolio-sticky {
    padding-bottom: 0.65rem;
  }
  .portfolio-sticky.is-stuck {
    gap: 0.75rem;
  }
  .sticky-header {
    min-height: 3rem;
  }
  .site-name {
    font-size: 1.25rem;
  }
  .tag-nav {
    flex: 1 1 auto;
    flex-wrap: wrap;
    min-width: 0;
    gap: 0.4rem;
    overflow-x: visible;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    padding-block: 0rem 1rem;
  }
  .tag-nav::-webkit-scrollbar {
    display: none;
  }
  .tag {
    min-height: 2rem;
    padding: 0.4rem 0.7rem;
    font-size: 0.75rem;
  }
  .project-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .project-info h2 {
    font-size: 1.15rem;
  }
}
/* ========================================
   10. REDUCED MOTION
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
/* ========================================
   11. PROJECT PAGES
   ======================================== */
/* Project header */
.project-header {
  max-width: none;
  margin-bottom: var(--section-gap);
}
/* Project title wrapping is natural; no nowrap override */
.project-back {
  display: inline-block;
  margin-bottom: var(--section-gap);
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.project-back:hover {
  color: var(--color-accent);
}
/* Project description */
.project-description {
  max-width: 65ch;
  color: var(--color-muted);
  font-size: var(--text-h4);
  line-height: 1.5;
}
/* Project category tags */
.project-header .project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.project-header .tag {
  cursor: default;
}
/* Keep project-page category labels visually static on hover */
.project-header .tag:hover {
  border-color: var(--color-line);
  background: transparent;
  color: var(--color-ink);
}
/* Written project content */
.project-content {
  max-width: 750px;
  margin-bottom: var(--section-gap);
}
.project-content h2 {
  margin-top: var(--section-gap);
}
.project-content p {
  line-height: 1.7;
}
.project-content > :first-child {
  margin-top: 0;
}
/* ========================================
   12. PROJECT GALLERY
   ======================================== */
.project-gallery {
  display: flex;
  flex-direction: column;
  gap: var(--section-gap);
}
.project-gallery-group {
  min-width: 0;
}
/* Full-width images */
.project-gallery-group--full {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.project-gallery-group--full .project-gallery-item {
  width: 100%;
  margin: 0;
}
.project-gallery-group--full img {
  display: block;
  width: 100%;
  height: auto;
}
/* Equal-height rows */
.project-gallery-group--row {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 1.5rem;
  width: 100%;
  min-width: 0;
}
.project-gallery-group--row .project-gallery-item {
  flex: 0 0 auto;
  min-width: 0;
  margin: 0;
}
.project-gallery-group--row img {
  display: block;
  width: auto;
  height: var(--gallery-row-height, auto);
  max-width: none;
  object-fit: contain;
}
/* Stacked images */
.project-gallery-group--stack {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
}
.project-gallery-group--stack .project-gallery-item {
  max-width: 100%;
  margin: 0;
}
.project-gallery-group--stack img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 70rem;
}
/* Captions */
.project-gallery-item figcaption {
  margin-top: 0.75rem;
  color: var(--color-muted);
  font-size: var(--text-body);
  line-height: 1.5;
}
/* Mobile */
@media (max-width: 700px) {
  .project-gallery,
  .project-gallery-group--full,
  .project-gallery-group--row,
  .project-gallery-group--stack {
    gap: 1rem;
  }
}