/* ============================================================
   OC A — Öznur Çağlayan Architecture
   Design system: Chipperfield-discipline / monochrome / sans
   ============================================================ */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, blockquote {
  margin: 0; padding: 0;
}
ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; border: 0; background: none; cursor: pointer; color: inherit; }
a { color: inherit; text-decoration: none; }

/* ---------- Tokens ---------- */
:root {
  /* Palette — pure monochrome, no accent */
  --c-bg: #ffffff;
  --c-paper: #fafaf9;
  --c-ink: #0a0a0a;
  --c-ink-2: #4a4a4a;
  --c-ink-3: #8a8a8a;
  --c-rule: #e6e5e1;
  --c-rule-strong: #c9c7c1;

  /* Type */
  --ff-sans: "Inter", "Söhne", "Suisse Int'l", -apple-system, BlinkMacSystemFont,
             "Segoe UI", Helvetica, Arial, sans-serif;
  --ff-mono: "JetBrains Mono", "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;

  --fs-mono: 11px;
  --fs-meta: 12px;
  --fs-body: 16px;
  --fs-lead: 18px;
  --fs-h4: 18px;
  --fs-h3: 22px;
  --fs-h2: 32px;
  --fs-h1: 44px;
  --fs-display: 64px;

  /* Spacing */
  --gutter: 32px;
  --pad-x: 40px;
  --section-y: 120px;
  --max-w: 1640px;

  /* Motion */
  --ease: cubic-bezier(.2,.7,.2,1);
}

@media (max-width: 900px) {
  :root {
    --pad-x: 20px;
    --gutter: 20px;
    --section-y: 72px;
    --fs-h1: 32px;
    --fs-h2: 24px;
    --fs-h3: 20px;
    --fs-display: 44px;
    --fs-lead: 16px;
  }
}

/* ---------- Base ---------- */
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-sans);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.5;
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
h1 { font-size: var(--fs-h1); letter-spacing: -0.025em; }
h2 { font-size: var(--fs-h2); letter-spacing: -0.02em; }
h3 { font-size: var(--fs-h3); letter-spacing: -0.015em; }
h4 { font-size: var(--fs-h4); font-weight: 500; }

p { font-size: var(--fs-body); }
.lead {
  font-size: var(--fs-lead);
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: -0.005em;
}

.mono {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.meta {
  font-size: var(--fs-meta);
  color: var(--c-ink-2);
  font-weight: 400;
}

.rule { border: 0; border-top: 1px solid var(--c-rule); margin: 0; }

/* ---------- Layout ---------- */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.bleed { width: 100%; }

.section { padding: var(--section-y) 0; }
.section--tight { padding: calc(var(--section-y) * 0.55) 0; }

/* 12-col grid utility */
.grid12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.94);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}
.nav__brand img {
  height: 26px;
  width: auto;
  display: block;
}
.nav__brand span {
  color: var(--c-ink-3);
  font-weight: 400;
  font-size: 13px;
  letter-spacing: 0;
  white-space: nowrap;
}
@media (max-width: 700px) {
  .nav__brand span { display: none; }
  .nav__brand img { height: 22px; }
}

/* White version of logo (for dark footer / hero overlay) */
.logo-white {
  filter: invert(1) brightness(2);
}

.nav__links {
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav__link {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--c-ink);
  position: relative;
  padding: 4px 0;
  transition: opacity .15s var(--ease);
}
.nav__link:hover { opacity: 0.55; }
.nav__link.is-active { font-weight: 500; }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--c-ink);
}

.nav__lang {
  display: flex;
  gap: 4px;
  align-items: center;
  font-size: 12px;
  color: var(--c-ink-3);
}
.nav__lang button {
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 4px 6px;
  color: var(--c-ink-3);
  transition: color .15s var(--ease);
}
.nav__lang button.is-active { color: var(--c-ink); font-weight: 500; }
.nav__lang button:hover { color: var(--c-ink); }
.nav__lang span { color: var(--c-rule-strong); }

.nav__toggle {
  display: none;
}

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    margin-right: -8px;
  }
  .nav__toggle span {
    display: block;
    width: 22px;
    height: 1px;
    background: var(--c-ink);
  }
  .nav__links.is-open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: var(--c-bg);
    padding: 24px var(--pad-x);
  }
}

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 0;
}
.hero__inner {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  padding: 0 var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}
.hero__eyebrow {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  margin-bottom: 80px;
}
.hero__statement {
  grid-column: 1 / span 9;
  font-size: clamp(26px, 2.8vw, 44px);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.18;
  color: var(--c-ink);
  max-width: 22ch;
}
.hero__statement em {
  font-style: normal;
  color: var(--c-ink-3);
}
.hero__meta {
  grid-column: 10 / span 3;
  align-self: end;
  font-size: 13px;
  line-height: 1.55;
  color: var(--c-ink-2);
}
@media (max-width: 900px) {
  .hero { padding: 40px 0 0; }
  .hero__statement { grid-column: 1 / -1; }
  .hero__meta { grid-column: 1 / -1; margin-top: 28px; }
  .hero__eyebrow { margin-bottom: 40px; }
}

.hero__image {
  margin-top: 96px;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
@media (max-width: 900px) {
  .hero__image { margin-top: 48px; aspect-ratio: 4 / 3; }
}

/* ---------- Section header ---------- */
.sec-head {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  margin-bottom: 96px;
  align-items: end;
}
.sec-head__num { grid-column: 1 / span 1; }
.sec-head__title { grid-column: 2 / span 6; }
.sec-head__intro {
  grid-column: 8 / span 5;
  font-size: 15px;
  color: var(--c-ink-2);
  line-height: 1.55;
}
@media (max-width: 900px) {
  .sec-head { margin-bottom: 48px; }
  .sec-head__num { grid-column: 1 / -1; }
  .sec-head__title { grid-column: 1 / -1; margin-top: 8px; }
  .sec-head__intro { grid-column: 1 / -1; margin-top: 20px; }
}

/* ---------- Lines of Work ---------- */
.lines {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
}
.line {
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 360px;
  transition: opacity .25s var(--ease);
}
.line:hover .line__cta { opacity: 0.5; }
.line__series {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
  margin-bottom: 32px;
}
.line__title {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.012em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.line__by {
  font-size: 12px;
  color: var(--c-ink-3);
  margin-bottom: 32px;
}
.line__desc {
  font-size: 14px;
  color: var(--c-ink-2);
  line-height: 1.55;
  flex: 1;
}
.line__cta {
  margin-top: 32px;
  font-size: 13px;
  font-weight: 500;
  align-self: flex-start;
  transition: opacity .15s var(--ease), transform .25s var(--ease);
}
.line__cta:hover { opacity: 0.55; transform: translateX(4px); }

@media (max-width: 900px) {
  .lines { grid-template-columns: 1fr; gap: 48px; }
  .line { padding: 0; min-height: auto; }
}

/* ---------- Featured projects grid ---------- */
.projects {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}
.project {
  display: block;
  grid-column: span 6;
  position: relative;
}
.project--wide { grid-column: span 12; }
.project--narrow { grid-column: span 4; }

.project__img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: var(--c-paper);
  transition: opacity .3s var(--ease);
}
.project--wide .project__img { aspect-ratio: 21 / 9; }
.project--narrow .project__img { aspect-ratio: 3 / 4; }

.project:hover .project__img { opacity: 0.88; }

.project__caption {
  display: flex;
  justify-content: space-between;
  padding: 0;
  margin-top: 20px;
  align-items: flex-start;
  gap: 24px;
}
.project__caption-l { display: flex; flex-direction: column; gap: 4px; }
.project__num {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  color: var(--c-ink-3);
  letter-spacing: 0.08em;
}
.project__name {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.project__location {
  font-size: 13px;
  color: var(--c-ink-2);
}
.project__year {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  color: var(--c-ink-2);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

@media (max-width: 900px) {
  .project, .project--narrow, .project--wide { grid-column: 1 / -1; }
}

/* ---------- Principles ---------- */
.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
}
.principle {
  padding: 0;
}
.principle__num {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
  margin-bottom: 56px;
}
.principle__name {
  font-size: 32px;
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1;
  margin-bottom: 24px;
}
.principle__desc {
  font-size: 14px;
  color: var(--c-ink-2);
  line-height: 1.5;
  max-width: 28ch;
}
@media (max-width: 900px) {
  .principles { grid-template-columns: 1fr; gap: 48px; }
  .principle__name { font-size: 32px; }
}

/* ---------- Regions ---------- */
.regions {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  align-items: end;
}
.regions__map {
  grid-column: 1 / span 7;
}
.regions__list {
  grid-column: 9 / span 4;
}
.regions__list dl {
  display: grid;
  grid-template-columns: 1fr 2fr;
  row-gap: 12px;
  column-gap: 20px;
}
.regions__list dt {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
  padding-top: 5px;
}
.regions__list dd {
  font-size: 14px;
  color: var(--c-ink);
}
.regions__list hr { margin: 32px 0; border: 0; height: 1px; background: transparent; }
@media (max-width: 900px) {
  .regions__map, .regions__list { grid-column: 1 / -1; }
}

/* ---------- Journal preview ---------- */
.journal-list {
  /* no top border — relies on whitespace */
}
.journal-item {
  display: grid;
  grid-template-columns: 80px 1fr 240px 32px;
  gap: var(--gutter);
  padding: 36px 0;
  align-items: baseline;
  transition: padding .3s var(--ease), opacity .2s var(--ease);
}
.journal-item:hover { opacity: 0.55; }
.journal-item__date { font-family: var(--ff-mono); font-size: var(--fs-mono); color: var(--c-ink-3); letter-spacing: 0.08em; }
.journal-item__title { font-size: 22px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.2; }
.journal-item__kind { font-size: 13px; color: var(--c-ink-2); text-align: right; }
.journal-item__arrow { font-size: 13px; color: var(--c-ink-3); text-align: right; }
@media (max-width: 900px) {
  .journal-item { grid-template-columns: 1fr; gap: 4px; padding: 20px 0; }
  .journal-item__kind, .journal-item__arrow { text-align: left; }
}

/* ---------- Footer ---------- */
.footer {
  background: var(--c-ink);
  color: var(--c-bg);
  padding: 96px 0 32px;
  margin-top: var(--section-y);
}
.footer .wrap { color: inherit; }
.footer__top {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  padding-bottom: 80px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.footer__statement {
  grid-column: 1 / span 7;
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.2;
}
.footer__meta {
  grid-column: 9 / span 4;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.footer__meta h5 {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.45);
  margin-bottom: 8px;
  font-weight: 400;
}
.footer__meta p, .footer__meta a { font-size: 14px; line-height: 1.55; }
.footer__meta a:hover { opacity: 0.65; }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.55);
}
.footer__bottom ul { display: flex; gap: 24px; }
@media (max-width: 900px) {
  .footer { padding: 56px 0 28px; }
  .footer__statement, .footer__meta { grid-column: 1 / -1; }
  .footer__meta { margin-top: 24px; }
  .footer__bottom { flex-direction: column; gap: 16px; align-items: flex-start; }
}

/* ============================================================
   PROJECT PAGE
   ============================================================ */

.proj-header {
  padding: 56px 0 64px;
}
.proj-header__inner {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.proj-header__crumbs {
  grid-column: 1 / -1;
  display: flex;
  gap: 16px;
  margin-bottom: 80px;
}
.proj-header__crumbs a, .proj-header__crumbs span {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
  text-transform: uppercase;
}
.proj-header__crumbs a:hover { color: var(--c-ink); }
.proj-header__crumbs .crumb-sep { color: var(--c-rule-strong); }

.proj-header__title {
  grid-column: 1 / span 9;
  font-size: clamp(32px, 4vw, 60px);
  font-weight: 400;
  letter-spacing: -0.022em;
  line-height: 1.05;
  margin-bottom: 16px;
}
.proj-header__sub {
  grid-column: 1 / span 8;
  font-size: 17px;
  font-weight: 400;
  color: var(--c-ink-2);
  letter-spacing: 0;
  line-height: 1.45;
  margin-bottom: 40px;
}
.proj-header__award {
  grid-column: 11 / span 2;
  align-self: end;
  padding-left: 0;
  margin-bottom: 48px;
}
.proj-header__award .mono { display: block; margin-bottom: 6px; color: var(--c-ink-3); }
.proj-header__award strong { font-weight: 500; font-size: 14px; display: block; line-height: 1.3; }
@media (max-width: 900px) {
  .proj-header__title, .proj-header__sub, .proj-header__award { grid-column: 1 / -1; }
  .proj-header__award { padding: 0; margin-top: 24px; }
  .proj-header__crumbs { margin-bottom: 32px; }
}

.proj-cover {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}
@media (max-width: 900px) {
  .proj-cover { aspect-ratio: 4 / 3; }
}

.proj-meta {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter) 40px;
  padding: 56px var(--pad-x) 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.proj-meta dl {
  grid-column: span 3;
  padding-top: 0;
}
.proj-meta dt {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
  margin-bottom: 6px;
}
.proj-meta dd { font-size: 15px; color: var(--c-ink); line-height: 1.4; }
@media (max-width: 900px) {
  .proj-meta dl { grid-column: span 6; }
}

.proj-body {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  padding: 96px var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}
.proj-body__chapter {
  grid-column: 2 / span 1;
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
}
.proj-body__lead {
  grid-column: 4 / span 7;
  font-size: clamp(18px, 1.5vw, 22px);
  font-weight: 400;
  letter-spacing: -0.005em;
  line-height: 1.4;
  color: var(--c-ink);
}
.proj-body__text {
  grid-column: 4 / span 6;
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-ink);
  margin-top: 56px;
  columns: 2;
  column-gap: var(--gutter);
}
.proj-body__text p + p { margin-top: 1em; }
@media (max-width: 900px) {
  .proj-body { padding: 56px var(--pad-x); }
  .proj-body__chapter, .proj-body__lead, .proj-body__text { grid-column: 1 / -1; }
  .proj-body__text { columns: 1; margin-top: 32px; }
}

.proj-figure {
  margin: 0;
  padding: 32px var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}
.proj-figure--wide { padding: 32px 0; max-width: 100%; }
.proj-figure img { width: 100%; height: auto; display: block; }
.proj-figure figcaption {
  margin-top: 16px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
}
.proj-figure--wide figcaption { padding: 0 var(--pad-x); }

.proj-pair {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gutter);
  padding: 32px var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}
.proj-pair figure { margin: 0; }
.proj-pair img { width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; }
@media (max-width: 900px) {
  .proj-pair { grid-template-columns: 1fr; }
}

.proj-strategy {
  background: var(--c-paper);
  padding: 96px 0;
  margin: 96px 0 0;
}
.proj-strategy__inner {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.proj-strategy h2 {
  grid-column: 1 / span 4;
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.15;
}
.proj-strategy__list {
  grid-column: 6 / span 7;
}
.proj-strategy__list .strat-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--gutter);
  padding: 32px 0;
}
.strat-item__num {
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
  padding-top: 6px;
}
.strat-item__title { font-size: 17px; font-weight: 500; margin-bottom: 6px; }
.strat-item__desc { font-size: 14px; color: var(--c-ink-2); line-height: 1.55; }
@media (max-width: 900px) {
  .proj-strategy { padding: 56px 0; margin-top: 56px; }
  .proj-strategy h2, .proj-strategy__list { grid-column: 1 / -1; }
  .proj-strategy__list { margin-top: 24px; }
}

.proj-next {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  padding: 96px var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
  align-items: end;
}
.proj-next__label {
  grid-column: 1 / span 3;
  font-family: var(--ff-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.08em;
  color: var(--c-ink-3);
}
.proj-next__link {
  grid-column: 4 / span 9;
  font-size: clamp(28px, 3.2vw, 42px);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.1;
  padding-bottom: 0;
  transition: opacity .15s var(--ease);
  display: block;
}
.proj-next__link:hover { opacity: 0.55; }
.proj-next__link small {
  display: block;
  font-size: 14px;
  color: var(--c-ink-3);
  margin-top: 16px;
  letter-spacing: 0;
}
@media (max-width: 900px) {
  .proj-next { padding: 56px var(--pad-x); }
  .proj-next__label, .proj-next__link { grid-column: 1 / -1; }
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   WORK PAGE — dual filter grid
   ============================================================ */

.work-filters {
  padding: 40px 0 24px;
}
.filter-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 56px;
  padding: 0 var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}
@media (max-width: 900px) {
  .filter-row { grid-template-columns: 1fr; gap: 32px; }
}
.filter-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.filter-label {
  color: var(--c-ink-3);
}
.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
}
.filter-btn {
  font-size: 13px;
  font-weight: 400;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--c-ink-2);
  border: 1px solid var(--c-rule);
  transition: color .15s var(--ease), border-color .15s var(--ease), background .15s var(--ease);
  cursor: pointer;
  white-space: nowrap;
}
.filter-btn:hover { color: var(--c-ink); border-color: var(--c-ink-3); }
.filter-btn.is-active {
  color: var(--c-bg);
  background: var(--c-ink);
  border-color: var(--c-ink);
  font-weight: 500;
}
.filter-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px var(--pad-x) 0;
  max-width: var(--max-w);
  margin: 0 auto;
  color: var(--c-ink-3);
}
.filter-meta [data-count-current] { color: var(--c-ink); font-weight: 500; }
.filter-clear {
  color: var(--c-ink-3);
  padding: 4px 0;
  transition: color .15s var(--ease);
}
.filter-clear:hover { color: var(--c-ink); }

.work-grid-section { padding: 32px 0 var(--section-y); }
.work-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 56px var(--gutter);
}
.proj-card {
  grid-column: span 4;
  display: block;
  transition: opacity .3s var(--ease);
}
@media (max-width: 1200px) {
  .proj-card { grid-column: span 6; }
}
@media (max-width: 700px) {
  .proj-card { grid-column: span 12; }
  .work-grid { gap: 40px var(--gutter); }
}

.proj-card__img-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--c-paper);
  overflow: hidden;
}
.proj-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease), opacity .3s var(--ease);
}
.proj-card:hover .proj-card__img {
  transform: scale(1.02);
  opacity: 0.9;
}

.proj-card__caption {
  display: flex;
  justify-content: space-between;
  padding: 16px 0 0;
  align-items: baseline;
  gap: 16px;
}
.proj-card__caption-l { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.proj-card__tags {
  color: var(--c-ink-3);
  letter-spacing: 0.06em;
}
.proj-card__name {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.proj-card__loc {
  font-size: 13px;
  color: var(--c-ink-2);
}
.proj-card__year { color: var(--c-ink-3); white-space: nowrap; }

/* ============================================================
   PRACTICE PAGE
   ============================================================ */

/* Team — sequential grid with photos */
.team-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px 32px;
}
@media (max-width: 1100px) {
  .team-flow { grid-template-columns: repeat(3, 1fr); gap: 40px 24px; }
}
@media (max-width: 800px) {
  .team-flow { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .team-flow { grid-template-columns: 1fr; }
}

.team-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.team-card__photo {
  aspect-ratio: 1 / 1;
  background: var(--c-paper);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.team-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.team-card__initials {
  font-size: 32px;
  font-weight: 400;
  color: var(--c-ink-3);
  letter-spacing: 0.04em;
}
.team-card__role {
  color: var(--c-ink-3);
  margin-bottom: 4px;
}
.team-card__name {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.008em;
  color: var(--c-ink);
  margin-bottom: 4px;
}
.team-card__title-line {
  font-size: 13px;
  color: var(--c-ink-2);
  line-height: 1.4;
}
.team-card__bio {
  font-size: 13px;
  color: var(--c-ink-2);
  line-height: 1.5;
  margin-top: 8px;
}

/* Lead card (Öznur) — spans 2 columns on desktop */
.team-card--lead {
  grid-column: span 2;
  flex-direction: row;
  gap: 24px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--c-rule);
  margin-bottom: 24px;
}
.team-card--lead .team-card__photo {
  flex: 0 0 240px;
  aspect-ratio: 1 / 1;
}
.team-card--lead .team-card__initials {
  font-size: 56px;
}
.team-card--lead .team-card__name {
  font-size: 24px;
}
@media (max-width: 800px) {
  .team-card--lead {
    grid-column: 1 / -1;
    flex-direction: column;
    gap: 20px;
  }
  .team-card--lead .team-card__photo {
    flex: 0 0 auto;
    max-width: 240px;
  }
}

/* Services */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
@media (max-width: 900px) {
  .services { grid-template-columns: 1fr; gap: 32px; }
}
.service-col__code {
  color: var(--c-ink-3);
  margin-bottom: 12px;
}
.service-col__title {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.012em;
  line-height: 1.15;
  margin-bottom: 24px;
}
.service-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.service-list li {
  padding: 16px 0;
  border-top: 1px solid var(--c-rule-strong);
  font-size: 15px;
  display: flex;
  gap: 16px;
  align-items: baseline;
}
.service-list li:last-child {
  border-bottom: 1px solid var(--c-rule-strong);
}
.service-code {
  color: var(--c-ink-3);
  min-width: 24px;
}

/* ============================================================
   MATRIXLAB SECTION PAGE
   ============================================================ */
.matrixlab-header-logo {
  margin: 24px 0 40px;
  max-width: 720px;
}
.matrixlab-header-logo img {
  width: 100%;
  height: auto;
  display: block;
}
@media (max-width: 900px) {
  .matrixlab-header-logo { max-width: 100%; margin: 16px 0 32px; }
}

/* Why modular grid */
.why-modular-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px 40px;
}
@media (max-width: 900px) {
  .why-modular-grid { grid-template-columns: 1fr; gap: 40px; }
}
.why-item {
  padding-top: 16px;
  border-top: 1px solid var(--c-ink);
}
.why-item__code {
  color: var(--c-ink-3);
  margin-bottom: 20px;
}
.why-item__title {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.012em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.why-item__desc {
  font-size: 14px;
  color: var(--c-ink-2);
  line-height: 1.55;
}

.catalog-cta {
  background: var(--c-ink);
  color: var(--c-bg);
  padding: 96px 0;
  margin-top: 40px;
}
.catalog-cta__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: end;
}
@media (max-width: 900px) {
  .catalog-cta { padding: 56px 0; }
  .catalog-cta__inner { grid-template-columns: 1fr; }
}
.catalog-cta__btn {
  display: inline-block;
  padding: 16px 28px;
  background: white;
  color: var(--c-ink);
  font-weight: 500;
  font-size: 14px;
  border-radius: 4px;
  transition: opacity .15s ease;
}
.catalog-cta__btn:hover { opacity: 0.85; }
.catalog-cta__btn small {
  display: block;
  color: var(--c-ink-3);
  font-size: 11px;
  font-weight: 400;
  margin-top: 4px;
}

/* Journal filters */
.journal-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */

.contact-grid {
  padding: 40px var(--pad-x) 80px;
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  border-bottom: 1px solid var(--c-rule);
}
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 32px; padding: 24px var(--pad-x) 48px; }
}
.contact-block__label {
  color: var(--c-ink-3);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-rule);
}
.contact-block__addr {
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-ink);
}
.contact-block__addr a { text-decoration: none; }
.contact-block__addr a:hover { opacity: 0.65; }
.contact-block__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  color: var(--c-ink-2);
  transition: opacity .15s ease;
}
.contact-block__link:hover { opacity: 0.65; }

.contact-people {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
@media (max-width: 700px) {
  .contact-people { grid-template-columns: 1fr; gap: 32px; }
}
.contact-person {
  padding: 24px 0;
  border-top: 1px solid var(--c-rule);
}
.contact-person .mono {
  color: var(--c-ink-3);
  margin-bottom: 12px;
}
.contact-person h3 {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.012em;
  margin-bottom: 4px;
}
.contact-person p {
  font-size: 13px;
  color: var(--c-ink-2);
  margin-bottom: 8px;
}
.contact-person a {
  font-size: 14px;
  color: var(--c-ink);
  text-decoration: underline;
  text-decoration-color: var(--c-rule-strong);
  text-underline-offset: 3px;
  transition: opacity .15s ease;
}
.contact-person a:hover { opacity: 0.6; }

.contact-form {
  max-width: 720px;
  margin: 0;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
@media (max-width: 700px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-field {
  display: block;
  margin-bottom: 20px;
}
.form-field .mono {
  display: block;
  color: var(--c-ink-3);
  margin-bottom: 6px;
}
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--c-rule);
  border-radius: 4px;
  font-family: inherit;
  font-size: 15px;
  background: white;
  transition: border-color .15s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  border-color: var(--c-ink);
  outline: none;
}
.form-field textarea { resize: vertical; }
.form-submit {
  margin-top: 12px;
  padding: 14px 28px;
  background: var(--c-ink);
  color: white;
  border: 0;
  font-size: 14px;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity .15s ease;
}
.form-submit:hover { opacity: 0.85; }
.form-note {
  color: var(--c-ink-3);
  margin-top: 12px;
}

/* ---- Project detail: gallery block ---- */
.proj-gallery {
  padding: 32px 0;
  max-width: var(--max-w);
  margin: 0 auto;
}
.proj-gallery .proj-figure {
  padding: 32px var(--pad-x);
  margin: 0 auto;
}
.proj-gallery img {
  width: 100%;
  height: auto;
  display: block;
}