:root {
  --c-primary: #0f766e;
  --c-accent: #1e3a5f;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  overflow-x: clip;
  max-width: 100%;
}
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: #ecfeff;
  background: #0c1929;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
  max-width: 100%;
}
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: rgba(12, 25, 41, 0.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  visibility: visible;
}
.site-header__brand {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
}
.site-header__brand:hover { color: #5eead4; }
.site-header__logo-img {
  height: 40px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  display: block;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem 1rem;
  visibility: visible;
  opacity: 1;
  min-height: 1.5rem;
}
.site-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: #cbd5e1;
  text-decoration: none;
}
.site-nav a:hover { color: #fff; }
.site-nav a.is-active { color: #5eead4; }

.site-nav__item--dropdown {
  position: relative;
}
.site-nav__item--dropdown > a {
  font-size: 0.875rem;
  font-weight: 500;
  color: #cbd5e1;
  text-decoration: none;
}
.site-nav__item--dropdown > a:hover { color: #fff; }
.site-nav__sublist {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin: 0.35rem 0 0;
  padding: 0.4rem 0;
  min-width: 14rem;
  list-style: none;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  z-index: 60;
}
.site-nav__sublist a {
  display: block;
  padding: 0.45rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: #cbd5e1;
  text-decoration: none;
}
.site-nav__sublist a:hover { color: #fff; background: rgba(255, 255, 255, 0.06); }
.site-nav__sublist a.is-active { color: #5eead4; }
.site-nav__item--dropdown:hover .site-nav__sublist,
.site-nav__item--dropdown:focus-within .site-nav__sublist {
  display: block;
}

/* Mobil: hover yok; alt menü her zaman görünsün (daraltılmış girinti) */
@media (max-width: 720px) {
  .site-nav__item--dropdown .site-nav__sublist {
    position: static;
    display: flex;
    flex-direction: column;
    margin-top: 0.35rem;
    margin-left: 0.75rem;
    padding: 0.25rem 0 0.5rem;
    min-width: auto;
    box-shadow: none;
    border: none;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(0, 0, 0, 0.15);
  }
}
.lang-switch {
  display: inline-flex;
  border-radius: 9999px;
  border: 1px solid rgba(255,255,255,0.15);
  overflow: hidden;
  font-size: 0.75rem;
}
.lang-switch a {
  padding: 0.35rem 0.65rem;
  color: #94a3b8;
  text-decoration: none;
}
.lang-switch a.active {
  background: rgba(255,255,255,0.1);
  color: #fff;
}
.page-main {
  flex: 1;
  padding-top: 3.5rem;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
}
.page-wrap {
  max-width: 48rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}
.page-wrap--wide { max-width: 72rem; }
.page-hero-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #f1f5f9;
}
.page-lead {
  color: #94a3b8;
  margin-bottom: 2rem;
  line-height: 1.6;
}

/* Ortak alt sayfa hero — Hakkımızda ile aynı gradient + hat direği / rüzgar SVG (ana sayfa hariç) */
.page-hero-strip {
  width: 100%;
  max-width: 100%;
  margin-left: 0;
  margin-right: 0;
  position: relative;
  overflow: hidden;
  padding: 4.5rem 1.5rem 3.5rem;
  background: linear-gradient(
    145deg,
    rgba(12, 25, 41, 0.95) 0%,
    rgba(15, 118, 110, 0.45) 45%,
    rgba(30, 58, 95, 0.65) 100%
  );
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-hero-strip__bg-svg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

.page-hero-strip__bg-svg svg {
  width: 100%;
  height: 100%;
  min-height: 200px;
  display: block;
}

.page-hero-strip__inner {
  position: relative;
  z-index: 1;
  max-width: 56rem;
  margin: 0 auto;
  text-align: center;
}

.page-hero-strip__title {
  font-size: clamp(1.85rem, 4.8vw, 3.35rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.035em;
  color: #f8fafc;
  text-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
}

.page-hero-strip .page-lead {
  margin-bottom: 0;
  margin-top: 0.75rem;
  max-width: 40rem;
  margin-left: auto;
  margin-right: auto;
}

.page-hero-strip + .page-wrap,
.page-hero-strip + article.page-wrap {
  padding-top: 0.5rem;
}
.prose-block {
  margin-bottom: 2.5rem;
}
.prose-block h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 0.75rem;
}
.prose-block p {
  color: #94a3b8;
  line-height: 1.75;
  font-size: 1rem;
}
.timeline {
  position: relative;
  padding-left: 1.25rem;
  border-left: 2px solid rgba(94, 234, 212, 0.35);
  margin-top: 1.5rem;
}
.timeline__item {
  margin-bottom: 1.75rem;
  padding-left: 1rem;
}
.timeline__year {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #5eead4;
  margin-bottom: 0.35rem;
}
.timeline__item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 0.5rem;
}
.timeline__item p {
  color: #94a3b8;
  font-size: 0.95rem;
  line-height: 1.65;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.team-card {
  padding: 1.25rem;
  border-radius: 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}
.team-card img {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 0.75rem;
  display: block;
  background: rgba(255,255,255,0.06);
}
.team-card .name { font-weight: 600; color: #f1f5f9; }
.team-card .role { font-size: 0.85rem; color: #94a3b8; margin-top: 0.25rem; }
.contact-grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 768px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}
.contact-form label {
  display: block;
  font-size: 0.8rem;
  color: #94a3b8;
  margin-bottom: 0.35rem;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(15, 23, 42, 0.8);
  color: #f1f5f9;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.contact-form button {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: none;
  background: #0d9488;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}
.contact-form button:hover { background: #14b8a6; }
.contact-form button:disabled { opacity: 0.6; cursor: not-allowed; }
.map-embed {
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  min-height: 280px;
  background: rgba(0,0,0,0.2);
}
.map-embed iframe { width: 100%; height: 280px; border: 0; }
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  padding: 1rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  max-width: 22rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  animation: toastIn 0.3s ease;
}
.toast--ok { background: #134e4a; border: 1px solid #2dd4bf; color: #ccfbf1; }
.toast--err { background: #450a0a; border: 1px solid #f87171; color: #fecaca; }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}
.project-card {
  border-radius: 1rem;
  overflow: hidden;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: transform 0.2s;
}
.project-card:hover { transform: translateY(-4px); }
.project-card__img {
  aspect-ratio: 16/10;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
}
.project-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.project-card:hover .project-card__img img { transform: scale(1.05); }
.project-card__body { padding: 1rem 1.1rem 1.25rem; }
.project-card__city {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #5eead4;
  margin-bottom: 0.25rem;
}
.project-card__title { font-weight: 600; color: #f1f5f9; font-size: 1.05rem; }
.project-card__sub { font-size: 0.85rem; color: #94a3b8; margin-top: 0.35rem; line-height: 1.4; }
.hero {
  position: relative;
  min-height: calc(100vh - 3.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__media img, .hero__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
}
.hero__inner { position: relative; z-index: 2; max-width: 56rem; padding: 2rem; text-align: center; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
  text-shadow: 0 4px 30px rgba(0,0,0,0.45);
}
.hero p.lead { font-size: clamp(1rem, 2vw, 1.25rem); opacity: 0.95; max-width: 36rem; margin: 0 auto 1.5rem; line-height: 1.6; }
.hero .cta {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.95rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  text-decoration: none;
  backdrop-filter: blur(8px);
  transition: transform 0.2s, background 0.2s;
}
.hero .cta:hover { transform: translateY(-2px); background: rgba(255,255,255,0.2); }
section.stats {
  padding: 4rem 1.5rem;
  max-width: 72rem;
  margin: 0 auto;
}
section.stats h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
  text-align: center;
  color: #cbd5e1;
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.25rem;
}
.stat-card {
  padding: 1.5rem;
  border-radius: 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}
.stat-card .num {
  font-size: 1.75rem;
  font-weight: 700;
  color: #5eead4;
  font-variant-numeric: tabular-nums;
}
.stat-card .lbl { font-size: 0.8rem; color: #94a3b8; margin-top: 0.5rem; line-height: 1.4; }
footer.site {
  padding: 3rem 1.5rem;
  font-size: 0.9rem;
  color: #94a3b8;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: rgba(0,0,0,0.2);
  margin-top: auto;
}
.footer-grid {
  max-width: 72rem;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-grid h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #64748b;
  margin-bottom: 0.75rem;
}
.footer-grid a { color: #5eead4; text-decoration: none; }
.footer-grid a:hover { text-decoration: underline; }
.footer-bottom {
  max-width: 72rem;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  font-size: 0.8rem;
  color: #64748b;
}
@media (max-width: 640px) {
  .site-header { flex-wrap: wrap; padding: 0.65rem 1rem; }
  .site-nav { width: 100%; justify-content: center; gap: 0.5rem 0.75rem; }
  .site-header__brand { width: 100%; text-align: center; }
}
.empty-hint {
  color: #64748b;
  font-size: 0.95rem;
  padding: 2rem;
  text-align: center;
  border: 1px dashed rgba(255,255,255,0.12);
  border-radius: 0.75rem;
}
.text-link {
  color: #5eead4;
  text-decoration: none;
  font-weight: 500;
}
.text-link:hover {
  text-decoration: underline;
}