/* ==========================================================================
   Lumen Arts Co. — Layout: container, section, grid, header, footer
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* JS kapalıyken görünen yedek menü (partial yüklenemezse) */
.noscript-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) var(--gutter);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.noscript-nav a { color: var(--foreground); font-size: .9rem; font-weight: 500; }
.noscript-nav a:hover { color: var(--accent); }

.container--narrow { max-width: var(--container-narrow); }

.section {
  position: relative;
  padding-block: var(--section-y);
}

.section--tight { padding-block: clamp(48px, 7vw, 96px); }
.section--flush-top { padding-top: 0; }
.section--flush-bottom { padding-bottom: 0; }
.section--surface { background: var(--surface); }
.section--line { border-top: 1px solid var(--border); }

.section-head {
  display: grid;
  gap: var(--space-5);
  margin-bottom: clamp(40px, 5vw, 72px);
}

.section-head__title { font-size: var(--fs-h2); }
.section-head__text { color: var(--muted); max-width: 52ch; }

.section-head--split {
  grid-template-columns: 1fr;
  align-items: end;
}

@media (min-width: 900px) {
  .section-head--split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: var(--space-8);
  }
}

/* --- Generic grids ---------------------------------------------------- */
.grid { display: grid; gap: var(--space-5); }

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Editoryal asimetrik ikili düzen */
.split {
  display: grid;
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

@media (min-width: 1024px) {
  .split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
  .split--reverse { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .split--even { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split--sticky > :first-child { position: sticky; top: calc(var(--header-h) + 32px); }
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition:
    height var(--dur-micro) var(--ease-out),
    background-color var(--dur-micro) var(--ease-out),
    border-color var(--dur-micro) var(--ease-out),
    backdrop-filter var(--dur-micro) var(--ease-out);
}

.site-header.is-scrolled {
  height: calc(var(--header-h) - 12px);
  background: rgba(var(--background-rgb), .88);
  border-bottom-color: var(--border);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
}

.site-header__inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

/* Logo */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: 1.05rem;
  color: var(--foreground);
  flex: none;
}

.brand:hover { color: var(--foreground); }
.brand__mark { height: 30px; width: auto; flex: none; }
.brand__name { white-space: nowrap; }
.brand__name em { font-style: normal; color: var(--accent); }

/* Desktop nav */
.nav-desktop { display: none; }

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: clamp(4px, 1.4vw, 18px);
  }
}

.nav-desktop__list {
  display: flex;
  align-items: center;
  gap: clamp(2px, 1vw, 10px);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-desktop__list li { margin: 0; }

.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 12px;
  font-size: .92rem;
  font-weight: 500;
  color: var(--muted);
  border-radius: var(--radius-sm);
  transition: color var(--dur-micro) var(--ease-out);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-micro) var(--ease-out);
}

.nav-link:hover { color: var(--foreground); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--foreground); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

/* --- Hizmetler açılır menüsü (masaüstü) --- */
.nav-item { position: relative; }

/* Ok içeren linki flex yap: ok, satır kutusunu büyütmeden metinle
   dikey ortalanır (diğer linklerle aynı yükseklikte kalır). */
.nav-item--has-menu > .nav-link {
  display: inline-flex;
  align-items: center;
}

.nav-link__caret {
  flex: none;
  width: 13px;
  height: 13px;
  margin-left: 4px;
  opacity: .7;
  transition: transform var(--dur-micro) var(--ease-out);
}

.nav-item--has-menu:hover .nav-link__caret,
.nav-item--has-menu:focus-within .nav-link__caret { transform: rotate(180deg); }

.nav-dropdown {
  position: absolute;
  top: calc(100% - 6px);
  left: 0;
  min-width: 260px;
  padding: 8px;
  padding-top: 12px;   /* imleç köprüsü */
  background: rgba(var(--background-rgb), .92);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity var(--dur-micro) var(--ease-out),
    transform var(--dur-micro) var(--ease-out),
    visibility 0s linear var(--dur-micro);
  z-index: 20;
}

.nav-item--has-menu:hover .nav-dropdown,
.nav-item--has-menu:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 0s;
}

.nav-dropdown__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.nav-dropdown__list li { margin: 0; }

.nav-dropdown__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  color: var(--muted);
  white-space: nowrap;
  transition: background-color var(--dur-micro) var(--ease-out),
              color var(--dur-micro) var(--ease-out);
}

.nav-dropdown__list a:hover,
.nav-dropdown__list a:focus-visible {
  background: rgba(var(--foreground-rgb), .05);
  color: var(--foreground);
}

.nav-dropdown__all {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px solid var(--border);
}
.nav-dropdown__all a { color: var(--accent); font-weight: 500; }
.nav-dropdown__all svg { width: 14px; height: 14px; }

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Hamburger */
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(var(--background-rgb), .5);
  color: var(--foreground);
  transition: border-color var(--dur-micro) var(--ease-out);
}

.menu-toggle:hover { border-color: var(--border-strong); }

@media (min-width: 1024px) { .menu-toggle { display: none; } }

.menu-toggle__bars {
  position: relative;
  width: 20px;
  height: 12px;
}

.menu-toggle__bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--dur-micro) var(--ease-out),
              opacity var(--dur-micro) var(--ease-out);
}

.menu-toggle__bars span:nth-child(1) { top: 0; }
.menu-toggle__bars span:nth-child(2) { top: 5px; }
.menu-toggle__bars span:nth-child(3) { top: 10px; }

.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* Mobile panel */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--background);
  padding: calc(var(--header-h) + 24px) var(--gutter) var(--space-7);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition:
    opacity var(--dur-micro) var(--ease-out),
    transform var(--dur-micro) var(--ease-out),
    visibility 0s linear var(--dur-micro);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.mobile-menu.is-open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0s;
}

@media (min-width: 1024px) { .mobile-menu { display: none; } }

.mobile-menu__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  align-content: start;
  gap: 2px;
}

.mobile-menu__list li {
  margin: 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(14px);
}

.mobile-menu.is-open .mobile-menu__list li {
  animation: menu-item-in 380ms var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 45ms + 60ms);
}

.mobile-menu__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 18px 2px;
  font-size: clamp(1.5rem, 7vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--foreground);
}

.mobile-menu__link[aria-current="page"] { color: var(--accent); }

.mobile-menu__index {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--muted);
}

/* Mobil alt menü — Hizmetler hizmet listesi */
.mobile-submenu {
  list-style: none;
  margin: 0 0 14px;
  padding: 6px 0 6px 2px;
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--border);
}

.mobile-submenu li { margin: 0; }

.mobile-submenu a {
  display: block;
  padding: 9px 0 9px 16px;
  font-size: 1.02rem;
  color: var(--muted);
}

.mobile-submenu a:hover,
.mobile-submenu a:focus-visible { color: var(--accent); }

.mobile-menu__footer {
  display: grid;
  gap: var(--space-4);
  padding-top: var(--space-6);
}

.mobile-menu__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--fs-small);
  color: var(--muted);
}

@keyframes menu-item-in {
  to { opacity: 1; transform: translateY(0); }
}

/* Sayfa gövdesi header yüksekliğini telafi eder */
.page-main { min-height: 60vh; }
.page-main > .section:first-child { padding-top: calc(var(--header-h) + clamp(40px, 6vw, 88px)); }

/* Scroll progress (blog detay) */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--accent);
  z-index: calc(var(--z-header) + 1);
  pointer-events: none;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  position: relative;
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding-top: clamp(56px, 7vw, 96px);
}

.site-footer__grid {
  display: grid;
  gap: clamp(32px, 4vw, 56px);
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .site-footer__grid { grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); }
}

.site-footer__about { max-width: 34ch; color: var(--muted); }
.site-footer__brand { margin-bottom: var(--space-4); }

.site-footer__logo {
  display: inline-block;
  margin-bottom: var(--space-5);
}
.site-footer__logo img {
  width: clamp(150px, 18vw, 188px);
  height: auto;
}

.footer-col__title {
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--space-4);
}

.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.footer-list li { margin: 0; }
.footer-list a { color: var(--foreground); font-size: .94rem; }
.footer-list a:hover { color: var(--accent); }

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted);
  transition: color var(--dur-micro) var(--ease-out),
              border-color var(--dur-micro) var(--ease-out);
}

.footer-social a:hover { color: var(--accent); border-color: var(--accent-line); }
.footer-social svg { width: 18px; height: 18px; }

.site-footer__slogan {
  margin-top: clamp(48px, 6vw, 88px);
  padding-bottom: clamp(24px, 3vw, 40px);
  font-size: clamp(2.2rem, 11vw, 8.5rem);
  font-weight: 800;
  line-height: .9;
  letter-spacing: -.045em;
  color: transparent;
  -webkit-text-stroke: 1px var(--border-strong);
  text-align: center;
  overflow-wrap: anywhere;
}

.site-footer__bottom {
  border-top: 1px solid var(--border);
  padding-block: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--fs-small);
  color: var(--muted);
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__legal li { margin: 0; }