/* Kurumsal site — UI kit styles. Builds on colors_and_type.css */

/* ===== Site Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-1);
  border-bottom: 1px solid var(--line-1);
  transition: background var(--dur-base) var(--ease-standard);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  transition: height var(--dur-base) var(--ease-standard);
}
.site-header.is-scrolled .site-header__inner { height: var(--header-h-scrolled); }
.site-header__logo { border: 0; display: flex; align-items: center; }
.site-header__nav { display: flex; gap: var(--sp-7); }
.site-header__link {
  font-family: var(--ff-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-1);
  border: 0;
  padding: 4px 0;
  position: relative;
}
.site-header__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 1px;
  background: var(--brand-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease-standard);
}
.site-header__link:hover { color: var(--fg-1); }
.site-header__link:hover::after,
.site-header__link.is-active::after { transform: scaleX(1); }
.site-header__lang { display: flex; align-items: center; gap: 6px; font-family: var(--ff-display); font-size: 13px; }
.lang-btn { background: transparent; border: 0; cursor: pointer; color: var(--fg-3); font-family: inherit; font-size: inherit; padding: 0; }
.lang-btn--active { color: var(--fg-1); font-weight: 600; }
.lang-sep { color: var(--fg-3); }

/* ===== Hero ===== */
.hero { padding: var(--sp-9) 0 var(--sp-8); position: relative; }
.hero__inner { display: grid; grid-template-columns: 1.6fr 1fr; gap: var(--sp-9); align-items: end; }
.hero__title { margin: 24px 0 32px; }
.hero__em { font-family: var(--ff-editorial); font-style: italic; font-weight: 300; color: var(--brand-accent); }
.hero__lede { max-width: 52ch; margin-bottom: 40px; }
.hero__ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.hero__meta { display: flex; flex-direction: column; gap: var(--sp-5); border-left: 1px solid var(--line-1); padding-left: var(--sp-6); }
.hero__stat { display: flex; flex-direction: column; gap: 2px; }
.hero__stat .num { font-family: var(--ff-display); font-size: 40px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; color: var(--fg-1); }
.hero__stat .lbl { font-family: var(--ff-body); font-size: 13px; color: var(--fg-3); }
.hero__rule { height: 1px; background: var(--line-1); margin-top: var(--sp-8); }

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; gap: var(--sp-7); }
  .hero__meta { flex-direction: row; border-left: 0; border-top: 1px solid var(--line-1); padding-left: 0; padding-top: var(--sp-5); justify-content: space-between; }
}

/* ===== Services Grid ===== */
.services__head { display: grid; grid-template-columns: 1fr 2fr; gap: var(--sp-7); align-items: end; margin-bottom: var(--sp-8); }
.services__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.service-card {
  background: var(--bg-2);
  padding: var(--sp-6) var(--sp-5);
  border-right: 1px solid var(--line-1);
  border-bottom: 1px solid var(--line-1);
  transition: background var(--dur-base) var(--ease-standard);
  display: flex; flex-direction: column;
  min-height: 220px;
}
.services__grid > .service-card:nth-child(4n) { border-right: 0; }
.services__grid > .service-card:nth-child(1),
.services__grid > .service-card:nth-child(2),
.services__grid > .service-card:nth-child(3),
.services__grid > .service-card:nth-child(4) { border-top: 1px solid var(--line-1); }
.services__grid { border-left: 1px solid var(--line-1); }
.service-card__top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: var(--sp-4); }
.service-card__num { font-family: var(--ff-mono); font-size: 12px; color: var(--brand-accent); }
.service-card__group { font-family: var(--ff-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-3); }
.service-card__title { font-family: var(--ff-display); font-size: 18px; font-weight: 700; margin: 0 0 8px; color: var(--fg-1); }
.service-card__body { font-size: 14px; color: var(--fg-2); margin: 0 0 var(--sp-4); flex: 1; line-height: 1.55; }
.service-card__link { font-family: var(--ff-display); font-size: 13px; font-weight: 600; color: var(--fg-1); border: 0; display: inline-flex; align-items: center; gap: 6px; align-self: flex-start; }
.service-card:hover { background: var(--bg-1); }
.service-card:hover .service-card__link { color: var(--brand-accent); }

@media (max-width: 900px) {
  .services__head { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .services__grid > .service-card:nth-child(2n) { border-right: 0; }
  .services__grid > .service-card:nth-child(4n) { border-right: 1px solid var(--line-1); }
}

/* ===== Work Grid ===== */
.work__head { margin-bottom: var(--sp-6); }
.work__filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: var(--sp-7); padding-bottom: var(--sp-5); border-bottom: 1px solid var(--line-1); }
.work__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5) var(--sp-4); }
.work-card { display: flex; flex-direction: column; cursor: pointer; }
.work-card__media { aspect-ratio: 4 / 5; display: flex; align-items: center; justify-content: center; transition: opacity var(--dur-base) var(--ease-standard); }
.work-card__client { font-family: var(--ff-display); font-weight: 800; font-size: 28px; color: rgba(255,255,255,0.85); letter-spacing: -0.02em; text-align: center; padding: 24px; }
.work-card:hover .work-card__media { opacity: 0.88; }
.work-card__meta { padding: 14px 0 0; }
.work-card__cat { font-family: var(--ff-mono); font-size: 11px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.05em; }
.work-card__title { font-family: var(--ff-display); font-size: 17px; font-weight: 600; margin: 4px 0 0; color: var(--fg-1); }

@media (max-width: 900px) {
  .work__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Clients Wall ===== */
.clients .eyebrow { display: block; margin-bottom: var(--sp-5); }
.clients__wall { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line-1); border-left: 1px solid var(--line-1); }
.clients__cell { font-family: var(--ff-display); font-weight: 700; letter-spacing: 0.02em; color: var(--fg-2); border-right: 1px solid var(--line-1); border-bottom: 1px solid var(--line-1); padding: var(--sp-6) var(--sp-4); display: flex; align-items: center; justify-content: center; min-height: 100px; text-align: center; font-size: 14px; transition: color var(--dur-base) var(--ease-standard); }
.clients__cell:hover { color: var(--brand-primary); }

@media (max-width: 900px) { .clients__wall { grid-template-columns: repeat(2, 1fr); } }

/* ===== CTA ===== */
.cta__inner { display: grid; grid-template-columns: 2fr 1fr; gap: var(--sp-7); align-items: end; }
.cta__title { color: var(--fg-on-inverse); max-width: 18ch; }
@media (max-width: 900px) { .cta__inner { grid-template-columns: 1fr; align-items: start; } }

/* ===== Footer ===== */
.site-footer { background: var(--bg-inverse); color: var(--fg-on-inverse); padding: var(--sp-9) 0 var(--sp-5); }
.site-footer__top { display: grid; grid-template-columns: 1.2fr 2fr; gap: var(--sp-9); padding-bottom: var(--sp-7); border-bottom: 1px solid var(--line-2); }
.site-footer__about { color: var(--fg-on-inverse-2); font-size: 14px; line-height: 1.6; max-width: 36ch; margin-top: var(--sp-4); }
.site-footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.site-footer__h { font-family: var(--ff-display); font-size: 12px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--fg-on-inverse); font-weight: 600; margin: 0 0 var(--sp-4); }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.site-footer a, .site-footer address a { color: var(--fg-on-inverse-2); border: 0; font-size: 14px; font-style: normal; }
.site-footer a:hover { color: var(--brand-accent); }
.site-footer address { color: var(--fg-on-inverse-2); font-size: 14px; line-height: 1.6; font-style: normal; }
.site-footer__bottom { display: flex; justify-content: space-between; padding-top: var(--sp-5); font-family: var(--ff-mono); font-size: 12px; color: var(--fg-on-inverse-2); }

@media (max-width: 900px) {
  .site-footer__top { grid-template-columns: 1fr; gap: var(--sp-7); }
  .site-footer__cols { grid-template-columns: 1fr 1fr; }
  .site-footer__bottom { flex-direction: column; gap: 8px; }
}

/* ===== Page hero ===== */
.page-hero { padding: var(--sp-9) 0 var(--sp-7); }
.page-hero h1 { margin-top: 24px; max-width: 18ch; }

/* ===== About page ===== */
.about__grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: var(--sp-9); }
.about__facts { border-left: 1px solid var(--line-1); padding-left: var(--sp-6); margin: 0; display: flex; flex-direction: column; gap: var(--sp-5); }
.about__facts > div { display: flex; flex-direction: column; gap: 4px; padding-bottom: var(--sp-4); border-bottom: 1px solid var(--line-1); }
.about__facts > div:last-child { border-bottom: 0; }
.about__facts dt { font-family: var(--ff-mono); font-size: 11px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.1em; margin: 0; }
.about__facts dd { font-family: var(--ff-display); font-size: 18px; font-weight: 700; color: var(--fg-1); margin: 0; }
@media (max-width: 900px) { .about__grid { grid-template-columns: 1fr; } }

/* ===== Services page ===== */
.services-page__group { display: grid; grid-template-columns: 1fr 3fr; gap: var(--sp-7); padding: var(--sp-7) 0; border-top: 1px solid var(--line-1); }
.services-page__group:last-child { border-bottom: 1px solid var(--line-1); }
.services-page__list { display: flex; flex-direction: column; gap: 0; }
.services-page__row { display: grid; grid-template-columns: 1fr 1.5fr auto; gap: var(--sp-5); align-items: baseline; padding: var(--sp-4) 0; border-bottom: 1px solid var(--line-1); }
.services-page__row:last-child { border-bottom: 0; }
.services-page__row h3 { margin: 0; font-size: 20px; }
.services-page__row p { margin: 0; font-size: 14px; color: var(--fg-2); }
.services-page__more { font-family: var(--ff-display); font-size: 13px; font-weight: 600; color: var(--fg-1); border: 0; display: inline-flex; align-items: center; gap: 6px; }
@media (max-width: 900px) {
  .services-page__group { grid-template-columns: 1fr; }
  .services-page__row { grid-template-columns: 1fr; gap: 8px; }
}

/* ===== Contact page ===== */
.contact__grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: var(--sp-9); }
.contact__info h3 { font-size: 18px; margin: 0 0 var(--sp-4); }
.contact__info address { font-style: normal; color: var(--fg-2); line-height: 1.7; margin-bottom: var(--sp-5); }
.contact__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--sp-3); }
.contact__list li { display: flex; align-items: center; gap: var(--sp-3); }
.contact__form { display: flex; flex-direction: column; gap: var(--sp-4); }
.contact__form label { font-family: var(--ff-display); font-size: 13px; font-weight: 600; color: var(--fg-1); display: flex; flex-direction: column; gap: 6px; }
.contact__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
.contact__form button { align-self: flex-start; margin-top: var(--sp-3); }
.contact__sent { padding: var(--sp-6); border: 1px solid var(--line-1); }
.contact__sent h3 { margin: 0 0 8px; }
.contact__sent p { margin: 0; }
@media (max-width: 900px) {
  .contact__grid { grid-template-columns: 1fr; }
  .contact__row { grid-template-columns: 1fr; }
}