/* =========================================================
   Tokens
   ========================================================= */
:root {
  /* Color */
  --color-bg: #fafaf8;
  --color-fg: #111111;
  --color-muted: #6b6b66;
  --color-hairline: #d8d6cf;
  --color-accent: #111111; /* keep restrained — single near-black accent */
  --color-overlay: rgba(17, 17, 17, 0.18);

  /* Typography */
  --font-sans:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
    sans-serif;

  --fs-eyebrow: 0.75rem;
  --fs-body: clamp(0.95rem, 0.9rem + 0.2vw, 1.0625rem);
  --fs-meta: 0.8125rem;
  --fs-section: clamp(2rem, 1.4rem + 2.6vw, 3.75rem);
  --fs-hero: clamp(2.75rem, 1.6rem + 5vw, 6.5rem);
  --fs-tagline: clamp(0.95rem, 0.85rem + 0.3vw, 1.125rem);

  --lh-tight: 1.05;
  --lh-snug: 1.25;
  --lh-body: 1.6;

  --tracking-tight: -0.02em;
  --tracking-eyebrow: 0.14em;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Layout */
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --max-width: 1600px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --dur-fast: 200ms;
  --dur: 400ms;
  --dur-slow: 600ms;
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--dur-fast) var(--ease);
}

a:hover {
  opacity: 0.6;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
p {
  margin: 0;
}

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

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-fg);
  color: var(--color-bg);
  padding: var(--space-2) var(--space-4);
  z-index: 1000;
}
.skip-link:focus {
  top: var(--space-4);
}

/* =========================================================
   Placeholder (drop-in for real images)
   ========================================================= */
.placeholder {
  background:
    repeating-linear-gradient(
      135deg,
      #ebeae3 0 1px,
      transparent 1px 14px
    ),
    #e6e4dc;
  width: 100%;
  height: 100%;
  position: relative;
}

.placeholder::after {
  content: attr(aria-label);
  position: absolute;
  inset: auto 0 var(--space-4) 0;
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-muted);
  pointer-events: none;
}

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--gutter);
  color: #ffffff;
  transition:
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    padding var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}

/* Past hero: light background, dark text, hairline below */
.site-header[data-state="past-hero"] {
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  color: var(--color-fg);
  border-bottom-color: var(--color-hairline);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.site-header__brand {
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  font-size: 0.95rem;
}

.site-nav ul {
  display: flex;
  gap: clamp(var(--space-4), 3vw, var(--space-7));
}

.site-nav a {
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh; /* mobile-safe viewport */
  min-height: 560px;
  overflow: hidden;
  color: #ffffff;
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Gradient overlay — on the section, not the img (pseudo-elements
   don't render on replaced elements like <img>). */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.15) 0%,
    rgba(0, 0, 0, 0.05) 35%,
    rgba(0, 0, 0, 0.35) 100%
  );
  pointer-events: none;
}

.hero__content {
  position: absolute;
  inset: auto 0 18% 0;
  padding: 0 var(--gutter);
  max-width: var(--max-width);
  margin: 0 auto;
  z-index: 2;
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-tight);
}

.hero__tagline {
  margin-top: var(--space-4);
  font-size: var(--fs-tagline);
  font-weight: 300;
  letter-spacing: 0.02em;
  opacity: 0.92;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  z-index: 2;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.7rem;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: #ffffff;
}

.hero__scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: currentColor;
  transform-origin: top;
  animation: scrollLine 2.4s var(--ease) infinite;
  opacity: 0.7;
}

@keyframes scrollLine {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }
  45% {
    transform: scaleY(1);
    transform-origin: top;
  }
  55% {
    transform: scaleY(1);
    transform-origin: bottom;
  }
  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__scroll-line {
    animation: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* =========================================================
   Section primitives
   ========================================================= */
.eyebrow {
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-muted);
}

.section-title {
  font-size: var(--fs-section);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-snug);
  max-width: 22ch;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

/* =========================================================
   Work
   ========================================================= */
.work {
  padding: var(--space-10) var(--gutter) var(--space-9);
  max-width: var(--max-width);
  margin: 0 auto;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-hairline);
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1.05rem;
  border: 1px solid var(--color-hairline);
  border-radius: 999px;
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
  color: var(--color-fg);
  background: transparent;
  transition:
    background-color var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
}

.filter-pill:hover {
  border-color: var(--color-fg);
  opacity: 1;
}

.filter-pill[aria-pressed="true"] {
  background: var(--color-fg);
  color: var(--color-bg);
  border-color: var(--color-fg);
}

/* Grid: CSS columns gives a clean asymmetric masonry look without JS.
   Items keep their natural aspect-ratio, columns balance themselves. */
.grid {
  column-count: 3;
  column-gap: var(--gutter);
}

@media (max-width: 960px) {
  .grid {
    column-count: 2;
  }
}
@media (max-width: 600px) {
  .grid {
    column-count: 1;
  }
}

.card {
  break-inside: avoid;
  margin-bottom: var(--space-7);
  display: block;
  /* Filter transitions */
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.card.is-leaving {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}

.card.is-hidden {
  display: none;
}

.card.is-entering {
  opacity: 0;
  transform: translateY(8px);
}

.card a {
  display: block;
  color: inherit;
}

.card a:hover {
  opacity: 1;
}

.card__media {
  width: 100%;
  overflow: hidden;
  background: #ececea;
  position: relative;
}

.card__media .placeholder {
  transition: transform var(--dur-slow) var(--ease);
}

.card a:hover .card__media .placeholder,
.card a:focus-visible .card__media .placeholder {
  transform: scale(1.03);
}

.card__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.card__title {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: var(--lh-snug);
  position: relative;
  display: inline-block;
}

/* Underline grows on hover */
.card__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width var(--dur) var(--ease);
}

.card a:hover .card__title::after,
.card a:focus-visible .card__title::after {
  width: 100%;
}

.card__sub {
  font-size: var(--fs-meta);
  color: var(--color-muted);
  white-space: nowrap;
}

.card__cat {
  margin-top: var(--space-2);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-muted);
}

/* =========================================================
   About
   ========================================================= */
.about {
  padding: var(--space-9) var(--gutter);
  border-top: 1px solid var(--color-hairline);
}

.about__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
  align-items: start;
}

@media (min-width: 800px) {
  .about__inner {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-9);
  }
}

.about__portrait {
  aspect-ratio: 4 / 5;
  background: #ececea;
  overflow: hidden;
}

.about__portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.placeholder--portrait {
  height: 100%;
}

.about__text > * + * {
  margin-top: var(--space-4);
}

.about__text .section-title {
  margin-top: var(--space-2);
  margin-bottom: var(--space-5);
}

.about__text p {
  max-width: 56ch;
  color: var(--color-fg);
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  padding: var(--space-7) var(--gutter) var(--space-5);
  border-top: 1px solid var(--color-hairline);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-7);
}

@media (min-width: 700px) {
  .site-footer__inner {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-7);
  }
}

.footer-label {
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.social {
  display: flex;
  gap: var(--space-4);
}

.site-footer__base {
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-meta);
  color: var(--color-muted);
  border-top: 1px solid var(--color-hairline);
  padding-top: var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-2);
}