/* =========================================================================
   STONE PANEL — main.css
   Framework-free, mobile-first. Design tokens below; components after.
   ========================================================================= */

:root {
  /* Color — warm plaster base, basalt ink, brass accent (see design plan) */
  --c-base: #F6F4EF;
  --c-base-100: #EFEBE2;
  --c-line: #E1DBCC;
  --c-ink: #1A1815;
  --c-ink-700: #4A463F;
  --c-ink-500: #746E62;
  --c-brass: #A9793B;
  --c-brass-light: #C69C5D;
  --c-brass-dark: #8A6130;
  --c-paper: #FFFFFF;

  /* Type — system font stack only (see Aşama 1 revizyon §1): no
     external font requests. Inter is used where the OS already has
     it; every device still renders correctly via the fallback chain. */
  --f-display: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --f-body: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Layout */
  --container: 1240px;
  --gutter: 20px;
  --radius: 2px;

  /* Motion */
  --ease: cubic-bezier(.4,0,.2,1);
  --dur: 180ms;
}

@media (min-width: 768px) {
  :root { --gutter: 32px; }
}

/* ---- Reset --------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, dl, dd, figure { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
input, textarea { font: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

html, body {
  /* Belt-and-suspenders: no single element (a rotated image, a long
     unbreakable string) should ever be able to create a horizontal
     scrollbar — see brief §13. */
  overflow-x: hidden;
}

body {
  background: var(--c-base);
  color: var(--c-ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--f-display);
  font-weight: 700;
  line-height: 1.12;
  color: var(--c-ink);
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--c-ink);
  color: var(--c-base);
  padding: 12px 20px;
  z-index: 1000;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

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

/* ---- Buttons ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn--brass { background: var(--c-brass); color: #fff; }
.btn--brass:hover { background: var(--c-brass-dark); }
.btn--dark { background: var(--c-ink); color: var(--c-base); }
.btn--dark:hover { background: var(--c-ink-700); }
.btn--outline-dark { border-color: var(--c-ink); color: var(--c-ink); }
.btn--outline-dark:hover { background: var(--c-ink); color: var(--c-base); }
.btn--outline-light { border-color: rgba(246,244,239,.5); color: var(--c-base); }
.btn--outline-light:hover { background: rgba(246,244,239,.1); border-color: var(--c-base); }
.btn--lg { padding: 16px 32px; font-size: 16px; }
.btn--block { display: flex; width: 100%; margin-top: 20px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14px;
  color: var(--c-ink);
  border-bottom: 1px solid var(--c-brass);
  padding-bottom: 2px;
}
.link-arrow::after {
  content: '→';
  color: var(--c-brass);
  transition: transform var(--dur) var(--ease);
}
.link-arrow:hover::after { transform: translateX(3px); }

/* =========================================================================
   HEADER
   ========================================================================= */
.site-header { position: relative; z-index: 100; }

.topbar {
  background: var(--c-ink);
  color: var(--c-base-100);
  font-size: 13px;
}
.topbar__row {
  display: none;
  align-items: center;
  justify-content: space-between;
  height: 38px;
}
@media (min-width: 900px) {
  .topbar__row { display: flex; }
}
.topbar__contact { display: flex; align-items: center; gap: 14px; }
.topbar__link { display: inline-flex; align-items: center; gap: 6px; color: inherit; }
.topbar__link--muted { color: #B9B3A4; }
.topbar__sep { width: 1px; height: 12px; background: #423E37; }
.topbar__aside { display: flex; align-items: center; gap: 18px; }
.topbar__social { display: flex; align-items: center; gap: 12px; }
.topbar__social a { color: #B9B3A4; transition: color var(--dur) var(--ease); }
.topbar__social a:hover { color: var(--c-brass-light); }
.topbar__lang { display: flex; align-items: center; gap: 6px; font-weight: 600; letter-spacing: .04em; }
.topbar__lang .is-active { color: var(--c-brass-light); }
.topbar__lang-disabled { color: #6B665C; cursor: default; }

.navbar {
  background: var(--c-paper);
  border-bottom: 1px solid var(--c-line);
}
.navbar__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.navbar__logo { display: inline-flex; }

.navbar__nav { display: none; }
@media (min-width: 1080px) {
  .navbar__nav { display: block; }
  .navbar__nav > ul { display: flex; align-items: center; gap: 30px; }
  .navbar__nav > ul > li { position: relative; }
  .navbar__nav > ul > li > a,
  .navbar__nav .dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--c-ink-700);
    padding: 10px 0;
    transition: color var(--dur) var(--ease);
  }
  .navbar__nav > ul > li > a:hover,
  .navbar__nav .dropdown-toggle:hover { color: var(--c-brass); }

  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: -16px;
    min-width: 230px;
    background: var(--c-paper);
    border: 1px solid var(--c-line);
    box-shadow: 0 12px 28px rgba(26,24,21,.08);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
  }
  .has-dropdown:hover .dropdown-menu,
  .has-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .dropdown-menu li a {
    display: block;
    padding: 9px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--c-ink-700);
    border-radius: var(--radius);
  }
  .dropdown-menu li a:hover { background: var(--c-base-100); color: var(--c-ink); }
}

.navbar__actions { display: flex; align-items: center; gap: 18px; }
.navbar__actions .btn--brass { display: none; }
@media (min-width: 1080px) {
  .navbar__actions .btn--brass { display: inline-flex; }
}

.navbar__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
}
@media (min-width: 1080px) {
  .navbar__burger { display: none; }
}
.navbar__burger span {
  display: block;
  height: 2px;
  background: var(--c-ink);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.navbar__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.navbar__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  background: var(--c-paper);
  border-bottom: 1px solid var(--c-line);
}
@media (min-width: 1080px) {
  .mobile-menu { display: none !important; }
}
.mobile-menu .container { padding-block: 18px 28px; }
.mobile-menu > nav > ul > li { border-bottom: 1px solid var(--c-line); }
.mobile-menu > nav > ul > li > a {
  display: block;
  padding: 14px 2px;
  font-weight: 600;
  font-size: 15px;
}
.mobile-menu details summary {
  padding: 14px 2px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
}
.mobile-menu details ul { padding: 0 2px 14px 14px; }
.mobile-menu details ul li a { display: block; padding: 8px 0; font-size: 14px; color: var(--c-ink-700); }

/* =========================================================================
   HERO
   ========================================================================= */
.hero {
  position: relative;
  min-height: 78svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
}
.hero__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(0deg, rgba(15,13,11,.86) 0%, rgba(15,13,11,.35) 52%, rgba(15,13,11,.35) 100%);
}
.hero__inner {
  position: relative;
  padding-block: 64px 72px;
  max-width: 780px;
}
.hero__eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--c-brass-light);
  margin-bottom: 16px;
}
.hero__title {
  font-size: clamp(32px, 5.4vw, 56px);
  letter-spacing: -.01em;
  color: #fff;
}
.hero__lead {
  margin-top: 20px;
  font-size: clamp(15px, 1.6vw, 18px);
  color: #E7E3D9;
  max-width: 56ch;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

/* =========================================================================
   SECTION GENERICS
   ========================================================================= */
.section { padding-block: clamp(56px, 8vw, 108px); }
.section__head { max-width: 640px; margin-bottom: clamp(32px, 5vw, 56px); }
.section__head--center { max-width: 700px; margin-inline: auto; text-align: center; }
.section__eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--c-brass);
  margin-bottom: 10px;
}
.section__title { font-size: clamp(26px, 3.4vw, 38px); }
.section__cta { margin-top: clamp(32px, 5vw, 48px); text-align: center; }

/* =========================================================================
   PRODUCT LIST (catalog-style alternating rows)
   ========================================================================= */
.product-list {
  display: flex;
  flex-direction: column;
}
.product-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-block: 40px;
  border-top: 1px solid var(--c-line);
}
.product-row:last-child { border-bottom: 1px solid var(--c-line); }
@media (min-width: 860px) {
  .product-row {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 64px;
    padding-block: 56px;
  }
  .product-row--reverse .product-row__media { order: 2; }
  .product-row--reverse .product-row__text { order: 1; }
}
.product-row__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.product-row__text { position: relative; }
.product-row__code {
  display: block;
  font-family: var(--f-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-brass);
  margin-bottom: 10px;
}
.product-row__text h3 {
  font-size: clamp(22px, 2.6vw, 28px);
  margin-bottom: 8px;
}
.product-row__tagline {
  color: var(--c-ink-700);
  font-weight: 600;
  margin-bottom: 12px;
}
.product-row__text p:not(.product-row__tagline) {
  color: var(--c-ink-700);
  max-width: 46ch;
  margin-bottom: 18px;
}

/* =========================================================================
   NEDEN STONE PANEL (certifications + feature grid)
   ========================================================================= */
.cert-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  padding-bottom: clamp(32px, 5vw, 48px);
  margin-bottom: clamp(32px, 5vw, 48px);
  border-bottom: 1px solid var(--c-line);
}
.cert-row li {
  font-family: var(--f-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-ink-500);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px 28px;
}
@media (min-width: 620px) {
  .why-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1080px) {
  .why-grid { grid-template-columns: repeat(4, 1fr); }
}
.why-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  color: var(--c-brass);
  margin-bottom: 18px;
}
.why-card h3 { font-size: 17px; margin-bottom: 8px; }
.why-card p { font-size: 14.5px; color: var(--c-ink-700); }

/* =========================================================================
   KURUMSAL / ABOUT
   ========================================================================= */
.about { background: var(--c-base-100); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
@media (min-width: 900px) {
  .about__grid { grid-template-columns: 0.85fr 1.15fr; gap: 72px; }
}
.about__media img { aspect-ratio: 4 / 5; object-fit: cover; }
.about__text p { color: var(--c-ink-700); margin-bottom: 16px; max-width: 58ch; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-block: 28px 30px;
  padding-top: 28px;
  border-top: 1px solid var(--c-line);
}
@media (min-width: 520px) {
  .stat-row { grid-template-columns: repeat(4, 1fr); }
}
.stat-row dt {
  font-family: var(--f-display);
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 800;
  color: var(--c-ink);
}
.stat-row dd {
  margin: 0;
  font-size: 13px;
  color: var(--c-ink-700);
  margin-top: 4px;
}

/* =========================================================================
   REFERENCES
   ========================================================================= */
.reference-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}
@media (min-width: 620px) {
  .reference-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
  .reference-grid { grid-template-columns: repeat(4, 1fr); }
}
.reference-grid li {
  background: var(--c-paper);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 96px;
  padding: 16px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--c-ink-700);
}

/* =========================================================================
   PROJECTS
   ========================================================================= */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 640px) {
  .project-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1000px) {
  .project-grid { grid-template-columns: repeat(3, 1fr); gap: 40px; }
}
.project-card img { aspect-ratio: 4 / 3; object-fit: cover; margin-bottom: 16px; }
.project-card a { display: block; color: inherit; text-decoration: none; }
.project-card h3 { font-size: 17px; margin-bottom: 4px; }
.project-card p { font-size: 14px; color: var(--c-ink-700); }

/* =========================================================================
   CATALOG CTA
   ========================================================================= */
.catalog { background: var(--c-ink); color: var(--c-base); }
.catalog__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
@media (min-width: 900px) {
  .catalog__grid { grid-template-columns: 1.1fr 0.9fr; gap: 72px; }
}
.catalog__text h2 {
  font-size: clamp(26px, 3.6vw, 40px);
  color: var(--c-base);
}
.catalog__text p { color: #C9C3B5; margin-top: 14px; max-width: 42ch; }
.catalog__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.catalog__media { display: flex; justify-content: center; padding-inline: 8px; }
.catalog__media img {
  width: 100%;
  max-width: 240px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transform: rotate(-3deg);
  box-shadow: 0 30px 60px rgba(0,0,0,.45);
}
@media (min-width: 640px) {
  .catalog__media img { max-width: 340px; }
}
@media (min-width: 900px) {
  .catalog__media img { max-width: 380px; }
}

/* =========================================================================
   OFFER / WHATSAPP CTA
   ========================================================================= */
.offer { background: var(--c-brass); color: #fff; }
.offer__inner { max-width: 640px; margin-inline: auto; text-align: center; }
.offer__inner h2 { font-size: clamp(26px, 3.4vw, 36px); color: #fff; }
.offer__inner p { margin-top: 14px; color: rgba(255,255,255,.88); }
.offer__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 30px; }
.offer .btn--brass { background: var(--c-ink); }
.offer .btn--brass:hover { background: #000; }

/* =========================================================================
   FOOTER
   ========================================================================= */
.site-footer { background: var(--c-ink); color: #C9C3B5; }
.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-block: clamp(48px, 7vw, 80px);
}
@media (min-width: 720px) {
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; }
}
.footer__brand p { margin-top: 16px; font-size: 14px; max-width: 34ch; color: #9C968A; }
.footer__col h2 {
  font-family: var(--f-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--c-base);
  margin-bottom: 16px;
}
.footer__col ul li { margin-bottom: 10px; font-size: 14px; }
.footer__col ul li a:hover { color: var(--c-brass-light); }
.footer__contact li { margin-bottom: 8px; }
.footer__social { display: flex; gap: 14px; margin-top: 18px; }
.footer__social a { color: #9C968A; transition: color var(--dur) var(--ease); }
.footer__social a:hover { color: var(--c-brass-light); }

.footer__bottom { border-top: 1px solid #322E28; }
.footer__bottom-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-block: 22px;
  font-size: 13px;
  color: #837E72;
}
@media (min-width: 720px) {
  .footer__bottom-row { flex-direction: row; justify-content: space-between; }
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 18px; }
.footer__legal a:hover { color: var(--c-brass-light); }

/* =========================================================================
   WHATSAPP FLOATING BUTTON
   ========================================================================= */
.whatsapp-fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 8px 20px rgba(0,0,0,.25);
  z-index: 90;
  transition: transform var(--dur) var(--ease);
}
.whatsapp-fab:hover { transform: scale(1.06); }

/* =========================================================================
   AŞAMA 2 — CATEGORY & PRODUCT PAGES
   ========================================================================= */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---- Breadcrumb --------------------------------------------------- */
.breadcrumb { padding-top: clamp(20px, 3vw, 32px); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 4px; }
.breadcrumb li { display: flex; align-items: center; gap: 4px; font-size: 13px; }
.breadcrumb a { color: var(--c-ink-500); }
.breadcrumb a:hover { color: var(--c-brass); }
.breadcrumb span[aria-current] { color: var(--c-ink-700); font-weight: 600; }
.breadcrumb__sep { color: var(--c-line); }

/* ---- Category hero -------------------------------------------------- */
.category-hero { padding-top: 0; }
.category-hero__title { margin-top: 14px; }
.category-hero__intro { margin-top: 14px; max-width: 62ch; color: var(--c-ink-700); font-size: 17px; }
.category-hero__media {
  margin-top: clamp(28px, 4vw, 44px);
  aspect-ratio: 16 / 6;
  overflow: hidden;
}
.category-hero__media img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 640px) {
  .category-hero__media { aspect-ratio: 4 / 3; }
}

.category-empty {
  color: var(--c-ink-700);
  max-width: 60ch;
  padding-block: 12px;
}

.category-about__inner { max-width: 72ch; }
.category-about__inner p { color: var(--c-ink-700); }

/* ---- Category grid (on /urunler/) ------------------------------------ */
.category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
@media (min-width: 640px) { .category-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .category-grid { grid-template-columns: repeat(4, 1fr); } }
.category-card__link { display: block; }
.category-card img { aspect-ratio: 4/3; object-fit: cover; margin-bottom: 14px; }
.category-card h2 { font-size: 17px; margin-bottom: 2px; }
.category-card p { font-size: 13px; color: var(--c-ink-500); margin-bottom: 8px; }

/* ---- Product grid (category page + related products) ----------------- */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
@media (min-width: 620px) { .product-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .product-grid { grid-template-columns: repeat(3, 1fr); gap: 32px; } }
@media (min-width: 1240px) { .product-grid--4 { grid-template-columns: repeat(4, 1fr); } }
.product-card__link { display: block; }
.product-card img { aspect-ratio: 4/3; object-fit: cover; margin-bottom: 14px; }
.product-card__category {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--c-brass);
  margin-bottom: 4px;
}
.product-card h3 { font-size: 18px; margin-bottom: 10px; }

/* ---- Product detail ---------------------------------------------------- */
.product-detail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-top: clamp(20px, 3vw, 32px);
}
@media (min-width: 900px) {
  .product-detail__grid { grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: start; }
}

.product-gallery__main {
  aspect-ratio: 4/3;
  overflow: hidden;
  margin-bottom: 16px;
}
.product-gallery__main img { width: 100%; height: 100%; object-fit: cover; }

.product-gallery__thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.product-gallery__thumb {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 76px;
  cursor: pointer;
  border: 1px solid transparent;
  padding: 4px;
  border-radius: var(--radius);
}
.product-gallery__thumb img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
}
.product-gallery__thumb span {
  font-size: 10.5px;
  color: var(--c-ink-500);
  text-align: center;
  line-height: 1.2;
}
.product-gallery__thumb.is-active {
  border-color: var(--c-brass);
}
.product-gallery__thumb.is-active span { color: var(--c-ink); font-weight: 600; }
.product-gallery__thumb:hover img { opacity: .85; }

.product-info__category {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--c-brass);
  margin-bottom: 8px;
}
.product-info__title { font-size: clamp(30px, 4vw, 44px); }
.product-info__desc { margin-top: 16px; color: var(--c-ink-700); font-size: 16.5px; max-width: 52ch; }

.product-info__variations { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--c-line); }
.product-info__variations h2 { font-size: 13px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--c-ink-500); margin-bottom: 12px; }
.product-info__code { color: var(--c-ink-500); font-size: 12.5px; }

/* Aşama 2 revizyon 2: variation swatches are now their own clickable
   buttons (data-gallery-thumb), each with a small colour image, so
   they need real layout rules rather than inheriting the plain list
   styling from before. */
.product-info__swatch-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  list-style: none;
}
.product-info__swatch {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 5px 10px 5px 5px;
  background: var(--c-paper);
}
.product-info__swatch img {
  width: 30px;
  height: 30px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
}
.product-info__swatch span {
  font-size: 13.5px;
  color: var(--c-ink-700);
  line-height: 1.25;
  text-align: left;
}
.product-info__swatch span em {
  display: block;
  font-style: normal;
  font-size: 11px;
  color: var(--c-ink-500);
}
.product-info__swatch.is-active {
  border-color: var(--c-brass);
  border-width: 2px;
  padding: 4px 9px 4px 4px;
}
.product-info__swatch.is-active span { color: var(--c-ink); font-weight: 600; }
.product-info__swatch:hover { border-color: var(--c-ink-500); }
.product-info__swatch--no-image { cursor: default; opacity: .7; }
.product-info__swatch--no-image:hover { border-color: var(--c-line); }

.application-areas { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; }
.application-areas li {
  font-size: 13.5px;
  padding: 6px 14px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  color: var(--c-ink-700);
}

.product-info__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* ---- Teknik Özellikler: key -> value grid, not a wide HTML table
   (Aşama 2 revizyonu §11) so it reads cleanly on mobile with no
   horizontal scroll. ------------------------------------------------ */
.spec-block { margin-top: clamp(48px, 6vw, 72px); }
.spec-block h2 { font-size: clamp(20px, 2.4vw, 26px); margin-bottom: 20px; }
.spec-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}
@media (min-width: 700px) {
  .spec-list { grid-template-columns: 1fr 1fr; }
}
.spec-list__row {
  background: var(--c-paper);
  padding: 16px 18px;
}
.spec-list__row dt {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--c-ink-500);
  margin-bottom: 4px;
}
.spec-list__row dd { margin: 0; font-size: 15px; color: var(--c-ink); }

/* =========================================================================
   ERROR PAGES (404 / 500) — kept in the shared stylesheet, not inline,
   so error pages need zero CSP exceptions (style-src 'self' only).
   ========================================================================= */
.error-page {
  font-family: var(--f-body);
  background: var(--c-base);
  color: var(--c-ink);
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  margin: 0;
  text-align: center;
  padding: 24px;
}
.error-page__wrap { max-width: 420px; }
.error-page__code {
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--c-brass);
  margin: 0 0 12px;
  text-transform: uppercase;
}
.error-page__message { font-size: 20px; line-height: 1.5; margin: 0 0 24px; }
.error-page__link {
  color: var(--c-ink);
  border-bottom: 1px solid var(--c-brass);
  text-decoration: none;
  padding-bottom: 2px;
}

/* =========================================================================
   AŞAMA 4 — PROJELER, REFERANSLAR, E-KATALOG
   ========================================================================= */

/* ---- Project detail meta (lokasyon / tür / yıl) ------------------------ */
.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 14px;
  font-size: 14px;
  color: var(--c-ink-700);
}
.project-meta strong { color: var(--c-ink-500); font-weight: 600; margin-right: 4px; }

/* ---- Project application gallery grid ----------------------------------- */
.project-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.project-gallery-grid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* ---- References logo grid ------------------------------------------------ */
.reference-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  list-style: none;
}
@media (min-width: 560px) { .reference-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 860px) { .reference-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1100px) { .reference-grid { grid-template-columns: repeat(6, 1fr); } }
.reference-grid__item {
  background: var(--c-paper);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  aspect-ratio: 3/2;
}
.reference-grid__item a { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; }
.reference-grid__logo {
  max-width: 100%;
  max-height: 60px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: .72;
  transition: filter .15s ease, opacity .15s ease;
}
.reference-grid__item a:hover .reference-grid__logo,
.reference-grid__item:has(a:focus-visible) .reference-grid__logo {
  filter: grayscale(0);
  opacity: 1;
}
.reference-grid__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink-500);
  text-align: center;
}

/* ---- Catalog cards --------------------------------------------------- */
.catalog-card img { aspect-ratio: 3/4; }
.catalog-card__year { color: var(--c-ink-500); font-weight: 400; font-size: 15px; }
.catalog-card p { color: var(--c-ink-700); font-size: 14px; margin: 8px 0 12px; }

.project-detail__title { margin-top: 14px; }
.project-detail__main-image { margin-top: 24px; }
.project-detail__desc { max-width: none; }
.offer__actions--spaced { margin-top: 16px; }

/* =========================================================================
   AŞAMA 5 — BLOG
   ========================================================================= */

.blog-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.blog-category-nav a {
  font-size: 13.5px;
  padding: 7px 14px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  color: var(--c-ink-700);
  text-decoration: none;
}
.blog-category-nav a.is-active {
  background: var(--c-ink);
  color: #fff;
  border-color: var(--c-ink);
}

.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
@media (min-width: 640px) { .blog-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 980px) { .blog-grid { grid-template-columns: repeat(3, 1fr); } }
.blog-grid--related { margin-top: 4px; }

.blog-card a { display: block; color: inherit; text-decoration: none; }
.blog-card img { width: 100%; aspect-ratio: 3/2; object-fit: cover; margin-bottom: 14px; }
.blog-card__category {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--c-brass);
  margin-bottom: 6px;
}
.blog-card h2, .blog-card h3 { font-size: 18px; margin: 0 0 8px; line-height: 1.3; }
.blog-card p { font-size: 14px; color: var(--c-ink-700); margin: 0 0 10px; }
.blog-card__meta { display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: var(--c-ink-500); }

.blog-pagination { margin-top: 32px; }

/* Blog detay — okunabilirlik için metin genişliği sınırlı (§8) */
.blog-detail__container { max-width: 760px; }
.blog-detail__date { display: block; color: var(--c-ink-500); font-size: 13.5px; margin: 4px 0 20px; }
.blog-detail__cover { margin: 0 0 28px; }
.blog-detail__content { font-size: 16px; line-height: 1.75; color: var(--c-ink-800, var(--c-ink-700)); }
.blog-detail__content h2 { font-size: 22px; margin: 32px 0 14px; }
.blog-detail__content h3 { font-size: 18px; margin: 24px 0 10px; }
.blog-detail__content p { margin: 0 0 18px; }
.blog-detail__content ul { margin: 0 0 18px; padding-left: 22px; }
.blog-detail__content li { margin-bottom: 6px; }
.blog-detail__content a { color: var(--c-brass); text-decoration: underline; }
.blog-detail__content strong { font-weight: 700; color: var(--c-ink); }

/* =========================================================================
   AŞAMA 6 — İLETİŞİM, TEKLİF AL, LEAD FORMU
   ========================================================================= */

.contact-layout__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
@media (min-width: 860px) { .contact-layout__grid { grid-template-columns: 1fr 1.5fr; align-items: start; } }

.contact-info h2, .contact-form h2 { font-size: 20px; margin: 0 0 20px; }
.contact-info__list { list-style: none; display: flex; flex-direction: column; gap: 18px; margin: 0 0 28px; }
.contact-info__label { display: block; font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--c-brass); margin-bottom: 4px; }
.contact-info__list a { color: var(--c-ink); text-decoration: none; font-size: 15px; }
.contact-info__list a:hover { color: var(--c-brass); }
.contact-info__list span:not(.contact-info__label) { font-size: 15px; color: var(--c-ink-700); }

.quote-context {
  background: var(--c-paper-alt, #f4f1ec);
  border: 1px solid var(--c-line);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 28px;
}
.quote-context__label { display: block; font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--c-brass); margin-bottom: 6px; }
.quote-context__name { display: block; font-size: 18px; margin-bottom: 8px; }

/* ---- Lead form (contact + quote paylaşıyor) ---------------------------- */
.form-alert { padding: 14px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; }
.form-alert--error { background: #fdecea; border: 1px solid #f5c6c0; color: #8a2c22; }
.form-alert--error ul { margin: 0; padding-left: 18px; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
@media (min-width: 560px) { .form-grid { grid-template-columns: 1fr 1fr; } }

.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-grid .form-field { margin-bottom: 0; }
.form-field label { font-size: 13.5px; font-weight: 600; color: var(--c-ink-500); }
.form-required { color: #b3261e; }
.form-field input,
.form-field textarea {
  font: inherit;
  font-size: 15px;
  padding: 11px 14px;
  border: 1px solid var(--c-line);
  border-radius: 8px;
  background: var(--c-paper);
  color: var(--c-ink);
  width: 100%;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: 2px solid var(--c-brass);
  outline-offset: 1px;
  border-color: var(--c-brass);
}
.form-field textarea { resize: vertical; min-height: 120px; }

/* Honeypot: görsel olarak tamamen gizli, ama gerçek bir input alanı
   olarak DOM'da duruyor — display:none kullanılmadı (bazı botlar
   bunu tespit edip atlayabiliyor), bunun yerine ekran dışına
   taşındı. */
.form-field--honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.lead-form .btn { margin-top: 8px; }

/* ---- Thank you sayfası --------------------------------------------------- */
.thank-you { display: flex; align-items: center; min-height: 50vh; }
.thank-you__inner { max-width: 560px; text-align: center; margin: 0 auto; }
.thank-you__title { font-size: 32px; margin-bottom: 16px; }
.thank-you__text { font-size: 16px; color: var(--c-ink-700); margin-bottom: 32px; }
.thank-you__actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }