/* ==========================================================================
   SelTan İnşaat – Premium Construction / Infrastructure Design System
   Prefix: .st-*   |   Palette: anthracite navy + gold accent
   Built on top of Bootstrap 5 + UpConstruction template. ASP.NET MVC friendly.
   ========================================================================== */

:root {
  --st-navy: #0f1c2e;          /* deep anthracite navy   */
  --st-navy-2: #16273d;        /* surface navy           */
  --st-navy-3: #243a57;        /* elevated navy           */
  --st-ink: #16202c;           /* body text on light     */
  --st-muted: #5d6b7a;         /* secondary text         */
  --st-line: #e7ecf2;          /* hairline borders       */
  --st-bg-soft: #f5f7fa;       /* soft section bg         */
  --st-gold: #365984;          /* brand blue accent       */
  --st-gold-2: #294466;        /* accent dark / hover     */
  --st-gold-soft: rgba(54, 89, 132, 0.14);
  --st-accent-on-dark: #7da3d1; /* lighter tint for contrast on navy */
  --st-white: #ffffff;
  --st-radius: 18px;
  --st-radius-sm: 12px;
  --st-shadow: 0 30px 60px -28px rgba(15, 28, 46, 0.45);
  --st-shadow-sm: 0 16px 36px -22px rgba(15, 28, 46, 0.40);
  --st-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --st-container: 1240px;
}

/* Re-map the earlier "seltan-modern" orange accent to premium gold so the
   top contact bar, sticky header underline, floating buttons and scroll-top
   all share one consistent gold accent. */
:root {
  --seltan-orange: #365984;
  --seltan-orange-dark: #294466;
  --seltan-navy: #0f1c2e;
  --seltan-navy-dark: #16273d;
}
.seltan-topbar { background: #0a1422; }
.seltan-float .seltan-wa { background: #25d366; }
.seltan-float .seltan-call { background: var(--st-navy); }

/* ---- Accent (#365984) readability adjustments --------------------------- */
/* On dark/navy backgrounds the accent is too close to the background,
   so use a lighter tint for text & icons there. */
.st-hero .st-gold,
.st-hero__badge,
.st-section--navy .st-gold,
.st-section--navy .st-eyebrow,
.st-career .st-eyebrow,
.st-stat__num .st-suffix,
.st-region-card i,
.st-project__cat,
.st-project__loc i,
.st-project__more {
  color: var(--st-accent-on-dark) !important;
}
.st-hero__badge {
  background: rgba(125, 163, 209, 0.15);
  border-color: rgba(125, 163, 209, 0.5);
}
.st-hero__badge i { color: var(--st-accent-on-dark); }

/* Filled accent elements need light text for contrast. */
.st-btn--gold,
.st-btn--gold:hover {
  color: #fff;
}
.st-project__cat { background: var(--st-gold); color: #fff !important; }
.st-news__date { color: #fff; }
.st-about__badge { color: #fff; }
.st-about__badge strong { color: #fff; }
.st-contact-cta,
.st-contact-cta h2 { color: #fff; }
.st-contact-cta p { color: rgba(255,255,255,0.85); }

/* ---- Premium micro-touches -------------------------------------------- */
/* Floating call button: refined brand color + gentle pulse ring */
.seltan-float .seltan-call {
  background: var(--st-gold);
  animation: st-call-pulse 2.4s infinite;
}
.seltan-float .seltan-call:hover { background: var(--st-gold-2); }
@keyframes st-call-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(54, 89, 132, 0.55); }
  70%  { box-shadow: 0 0 0 16px rgba(54, 89, 132, 0); }
  100% { box-shadow: 0 0 0 0 rgba(54, 89, 132, 0); }
}

/* Gold buttons: subtle light sweep on hover */
.st-btn--gold { position: relative; overflow: hidden; }
.st-btn--gold::before {
  content: "";
  position: absolute;
  top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s var(--st-ease);
}
.st-btn--gold:hover::before { left: 130%; }

/* Hero headline: tighter premium leading on large screens */
@media (min-width: 1200px) {
  .st-hero h1 { letter-spacing: -2px; }
}

/* Section titles get a slim accent underline on centered headers */
.st-section-title--center h2 { position: relative; padding-bottom: 22px; }
.st-section-title--center h2::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: 64px; height: 3px;
  border-radius: 2px;
  background: var(--st-gold);
}

/* --------------------------------------------------------------------------
   Base typography rhythm (premium = big, airy)
   -------------------------------------------------------------------------- */
body { color: var(--st-ink); }

::selection { background: var(--st-gold); color: var(--st-navy); }

.st-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  letter-spacing: 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--st-gold-2);
}
.st-eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--st-gold);
  display: inline-block;
}

.st-section { padding: 110px 0; }
.st-section--soft { background: var(--st-bg-soft); }
.st-section--navy {
  background: var(--st-navy);
  color: #fff;
}

.st-section-title { margin-bottom: 56px; }
.st-section-title h2 {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.5px;
  margin: 14px 0 0;
  color: inherit;
}
.st-section-title p {
  margin: 16px 0 0;
  color: var(--st-muted);
  font-size: 18px;
  max-width: 640px;
}
.st-section--navy .st-section-title p { color: rgba(255,255,255,0.72); }
.st-section-title--center { text-align: center; }
.st-section-title--center p { margin-left: auto; margin-right: auto; }

/* gold word highlight */
.st-gold { color: var(--st-gold); }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.st-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.3px;
  padding: 15px 32px;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.3s var(--st-ease), box-shadow 0.3s var(--st-ease),
              background 0.3s var(--st-ease), color 0.3s var(--st-ease);
  text-decoration: none;
}
.st-btn i { transition: transform 0.3s var(--st-ease); }
.st-btn:hover i { transform: translateX(4px); }

.st-btn--gold {
  background: var(--st-gold);
  color: #fff;
  box-shadow: 0 16px 30px -12px rgba(54, 89, 132, 0.5);
}
.st-btn--gold:hover {
  background: var(--st-gold-2);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 22px 38px -14px rgba(54, 89, 132, 0.6);
}
.st-btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}
.st-btn--ghost:hover {
  background: #fff;
  color: var(--st-navy);
  transform: translateY(-3px);
}
.st-btn--dark {
  background: var(--st-navy);
  color: #fff;
}
.st-btn--dark:hover { background: var(--st-navy-2); color: #fff; transform: translateY(-3px); }

/* --------------------------------------------------------------------------
   HERO – full-screen, dark overlay, parallax-ready background
   -------------------------------------------------------------------------- */
.st-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  background-color: var(--st-navy);
  background-image:
    linear-gradient(115deg, rgba(15, 28, 46, 0.92) 0%, rgba(15, 28, 46, 0.65) 55%, rgba(15, 28, 46, 0.45) 100%),
    url('/root/hero.jpg');           /* fallback image if no video */
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
/* animated subtle accent sheen */
.st-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(900px 520px at 82% 18%, rgba(125, 163, 209, 0.18), transparent 62%);
  pointer-events: none;
}

/* ---- Video hero ---- */
.st-hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.st-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(115deg, rgba(15, 28, 46, 0.90) 0%, rgba(15, 28, 46, 0.62) 50%, rgba(15, 28, 46, 0.40) 100%),
    linear-gradient(0deg, rgba(15, 28, 46, 0.85) 0%, rgba(15, 28, 46, 0) 38%);
  pointer-events: none;
}
/* premium fade-in for the whole hero on load */
.st-hero--video .st-hero__video { animation: st-hero-fade 1.4s var(--st-ease) both; }
@keyframes st-hero-fade { from { opacity: 0; transform: scale(1.06); } to { opacity: 1; transform: scale(1); } }
.st-hero__inner { position: relative; z-index: 2; padding: 140px 0 90px; }
.st-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--st-gold-soft);
  border: 1px solid rgba(212, 175, 55, 0.45);
  color: #f3dca0;
  padding: 9px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 26px;
}
.st-hero__badge i { color: var(--st-gold); }
.st-hero h1 {
  font-size: clamp(38px, 6vw, 76px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  max-width: 16ch;
  margin: 0 0 22px;
  text-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}
.st-hero p {
  font-size: clamp(17px, 2vw, 21px);
  color: rgba(255, 255, 255, 0.85);
  max-width: 58ch;
  margin: 0 0 36px;
  line-height: 1.6;
}
.st-hero__cta { display: flex; flex-wrap: wrap; gap: 16px; }

.st-hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,0.7);
  font-size: 26px;
  animation: st-bounce 2s infinite;
}
@keyframes st-bounce { 0%,100%{transform:translate(-50%,0);} 50%{transform:translate(-50%,10px);} }

@media (max-width: 991px) {
  .st-hero { background-attachment: scroll; min-height: 92vh; }
}

/* --------------------------------------------------------------------------
   STATS / counters
   -------------------------------------------------------------------------- */
.st-stats {
  background: linear-gradient(180deg, var(--st-navy) 0%, var(--st-navy-2) 100%);
  color: #fff;
  padding: 72px 0;
}
.st-stat { text-align: center; padding: 16px 8px; position: relative; }
.st-stat + .st-stat::before {
  content: "";
  position: absolute;
  left: 0; top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255,255,255,0.10);
}
.st-stat__num {
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 800;
  line-height: 1;
  font-family: var(--font-primary);
}
.st-stat__num .st-suffix { color: var(--st-gold); }
.st-stat__label {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
@media (max-width: 767px) {
  .st-stat + .st-stat::before { display: none; }
}

/* --------------------------------------------------------------------------
   ABOUT / kurumsal güven
   -------------------------------------------------------------------------- */
.st-about__media {
  position: relative;
  border-radius: var(--st-radius);
  overflow: hidden;
  box-shadow: var(--st-shadow);
  min-height: 420px;
  background: linear-gradient(135deg, var(--st-navy), var(--st-navy-2));
}
.st-about__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.st-about__badge {
  position: absolute;
  right: -10px;
  bottom: 30px;
  background: var(--st-gold);
  color: #fff;
  padding: 22px 28px;
  border-radius: var(--st-radius-sm);
  box-shadow: var(--st-shadow-sm);
  text-align: center;
}
.st-about__badge strong { display: block; font-size: 34px; font-weight: 800; line-height: 1; }
.st-about__badge span { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; }

.st-about__list { list-style: none; padding: 0; margin: 26px 0 0; }
.st-about__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 16px;
  color: var(--st-ink);
}
.st-about__list i { color: var(--st-gold-2); font-size: 20px; margin-top: 2px; }

/* --------------------------------------------------------------------------
   SERVICES / uzmanlık alanları
   -------------------------------------------------------------------------- */
.st-service {
  position: relative;
  background: #fff;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius);
  padding: 38px 30px;
  height: 100%;
  overflow: hidden;
  transition: transform 0.4s var(--st-ease), box-shadow 0.4s var(--st-ease), border-color 0.4s var(--st-ease);
}
.st-service::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  height: 4px; width: 100%;
  background: var(--st-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--st-ease);
}
.st-service:hover {
  transform: translateY(-10px);
  box-shadow: var(--st-shadow);
  border-color: transparent;
}
.st-service:hover::before { transform: scaleX(1); }
.st-service__icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  color: var(--st-gold);
  background: var(--st-gold-soft);
  margin-bottom: 22px;
  transition: background 0.4s var(--st-ease), color 0.4s var(--st-ease);
}
.st-service:hover .st-service__icon { background: var(--st-gold); color: var(--st-navy); }
.st-service h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.st-service p { color: var(--st-muted); font-size: 15px; margin: 0; line-height: 1.6; }

/* --------------------------------------------------------------------------
   PROJECTS – filterable cards
   -------------------------------------------------------------------------- */
.st-filter { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 44px; }
.st-filter button {
  border: 1px solid var(--st-line);
  background: #fff;
  color: var(--st-muted);
  padding: 10px 22px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s var(--st-ease);
}
.st-filter button:hover { color: var(--st-navy); border-color: var(--st-gold); }
.st-filter button.is-active {
  background: var(--st-navy);
  color: #fff;
  border-color: var(--st-navy);
}

.st-project {
  position: relative;
  border-radius: var(--st-radius);
  overflow: hidden;
  box-shadow: var(--st-shadow-sm);
  background: var(--st-navy);
  min-height: 360px;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
}
.st-project__img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: -2;
  transition: transform 0.6s var(--st-ease);
}
.st-project::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(15,28,46,0) 25%, rgba(15,28,46,0.55) 60%, rgba(15,28,46,0.95) 100%);
  transition: background 0.4s var(--st-ease);
}
.st-project:hover .st-project__img { transform: scale(1.08); }
.st-project:hover::after { background: linear-gradient(180deg, rgba(15,28,46,0.2) 0%, rgba(15,28,46,0.95) 100%); }

.st-project__body { position: relative; padding: 28px; color: #fff; width: 100%; }
.st-project__cat {
  display: inline-block;
  background: var(--st-gold);
  color: var(--st-navy);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 5px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
}
.st-project__body h3 { font-size: 22px; font-weight: 700; margin: 0 0 6px; }
.st-project__loc { display: flex; align-items: center; gap: 6px; color: rgba(255,255,255,0.8); font-size: 14px; margin-bottom: 0; }
.st-project__loc i { color: var(--st-gold); }
.st-project__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  color: var(--st-gold);
  font-weight: 700;
  font-size: 14px;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.35s var(--st-ease);
}
.st-project:hover .st-project__more { opacity: 1; transform: translateY(0); }

/* --------------------------------------------------------------------------
   REGIONS / faaliyet alanları
   -------------------------------------------------------------------------- */
.st-regions { position: relative; }
.st-region-card {
  background: var(--st-navy-2);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--st-radius-sm);
  padding: 22px;
  height: 100%;
  transition: transform 0.3s var(--st-ease), border-color 0.3s var(--st-ease), background 0.3s var(--st-ease);
}
.st-region-card:hover { transform: translateY(-6px); border-color: var(--st-gold); background: var(--st-navy-3); }
.st-region-card i { color: var(--st-gold); font-size: 24px; }
.st-region-card h4 { font-size: 17px; font-weight: 700; margin: 12px 0 4px; color: #fff; }
.st-region-card span { color: rgba(255,255,255,0.6); font-size: 13px; }

.st-map-wrap { text-align: center; }
.st-map-wrap svg { max-width: 100%; height: auto; }
.st-map-wrap svg path { fill: rgba(255,255,255,0.10); stroke: rgba(255,255,255,0.18); stroke-width: 0.5; transition: fill 0.3s ease; }
.st-map-wrap svg path:hover { fill: var(--st-gold); }

/* --------------------------------------------------------------------------
   NEWS
   -------------------------------------------------------------------------- */
.st-news {
  background: #fff;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s var(--st-ease), box-shadow 0.35s var(--st-ease);
}
.st-news:hover { transform: translateY(-8px); box-shadow: var(--st-shadow); }
.st-news__media { position: relative; height: 210px; overflow: hidden; background: var(--st-navy); }
.st-news__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--st-ease); }
.st-news:hover .st-news__media img { transform: scale(1.07); }
.st-news__date {
  position: absolute; left: 16px; top: 16px;
  background: var(--st-gold); color: var(--st-navy);
  font-weight: 700; font-size: 13px;
  padding: 6px 12px; border-radius: 8px;
}
.st-news__body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.st-news__cat { color: var(--st-gold-2); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.st-news__body h3 { font-size: 19px; font-weight: 700; line-height: 1.35; margin: 0 0 10px; }
.st-news__body p { color: var(--st-muted); font-size: 15px; margin: 0 0 16px; line-height: 1.6; }
.st-news__more { margin-top: auto; color: var(--st-navy); font-weight: 700; font-size: 14px; display: inline-flex; gap: 8px; align-items: center; }
.st-news__more i { color: var(--st-gold-2); transition: transform 0.3s var(--st-ease); }
.st-news:hover .st-news__more i { transform: translateX(4px); }

/* --------------------------------------------------------------------------
   CAREER CTA
   -------------------------------------------------------------------------- */
.st-career {
  position: relative;
  background:
    linear-gradient(115deg, rgba(15,28,46,0.94), rgba(15,28,46,0.7)),
    url('/root/kariyer.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  border-radius: var(--st-radius);
  padding: 64px 56px;
  overflow: hidden;
}
.st-career h2 { font-size: clamp(26px, 3.5vw, 40px); font-weight: 800; margin: 0 0 14px; max-width: 18ch; }
.st-career p { color: rgba(255,255,255,0.82); font-size: 18px; max-width: 52ch; margin: 0 0 28px; }

/* --------------------------------------------------------------------------
   CONTACT CTA strip
   -------------------------------------------------------------------------- */
.st-contact-cta {
  background: var(--st-gold);
  color: var(--st-navy);
  border-radius: var(--st-radius);
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.st-contact-cta h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 800; margin: 0; }
.st-contact-cta p { margin: 8px 0 0; font-size: 17px; opacity: 0.85; }

/* premium contact form */
.st-form .form-control {
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius-sm);
  padding: 14px 16px;
  font-size: 15px;
  background: #fff;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.st-form .form-control:focus {
  border-color: var(--st-gold);
  box-shadow: 0 0 0 0.2rem var(--st-gold-soft);
}

/* --------------------------------------------------------------------------
   PAGE HEADER (inner pages) – premium breadcrumb hero
   -------------------------------------------------------------------------- */
.st-pagehead {
  position: relative;
  min-height: 48vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: 150px 0 70px;
  background-color: var(--st-navy);
  background-image: url('/root/banner.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.st-pagehead::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15,28,46,0.85) 0%, rgba(15,28,46,0.55) 55%, rgba(15,28,46,0.45) 100%);
}
.st-pagehead::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,28,46,0) 55%, rgba(15,28,46,0.85) 100%);
}
/* "plain" varyantı da artık aynı banner'ı kullanır */
.st-pagehead--plain { min-height: 42vh; }

/* Eski şablon başlığı (.breadcrumbs) kullanan tüm iç sayfalar da aynı
   banner'ı kullansın. Inline background-image'ı !important ile ezeriz. */
.breadcrumbs {
  background-image: url('/root/banner.png') !important;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
  min-height: 42vh;
  padding: 150px 0 70px;
}
.breadcrumbs:before {
  background: linear-gradient(90deg, rgba(15,28,46,0.85) 0%, rgba(15,28,46,0.55) 60%, rgba(15,28,46,0.45) 100%) !important;
}
.breadcrumbs h2 {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.5px;
  text-shadow: 0 8px 30px rgba(0,0,0,0.35);
}
.breadcrumbs h2::after {
  content: "";
  display: block;
  width: 90px; height: 4px;
  background: linear-gradient(90deg, var(--st-accent-on-dark), #cfe0f2);
  border-radius: 3px;
  margin: 18px auto 0;
}
.breadcrumbs ol { justify-content: center; }
.breadcrumbs ol a { color: rgba(255,255,255,0.9); }
.breadcrumbs ol li.active,
.breadcrumbs ol li:last-child { color: var(--st-accent-on-dark); }

.st-pagehead__inner { position: relative; z-index: 2; }

/* okunur, premium eyebrow rozeti (koyu zemin için) */
.st-pagehead__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 7px 18px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: #cfe0f2;
  background: rgba(125, 163, 209, 0.16);
  border: 1px solid rgba(125, 163, 209, 0.4);
}
.st-pagehead h1 {
  font-size: clamp(34px, 5.5vw, 60px);
  font-weight: 800;
  letter-spacing: -1px;
  margin: 0 0 18px;
  text-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
.st-pagehead h1::after {
  content: "";
  display: block;
  width: 90px; height: 4px;
  background: linear-gradient(90deg, var(--st-accent-on-dark), #cfe0f2);
  border-radius: 3px;
  margin: 22px auto 0;
}
.st-breadcrumb {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}
.st-breadcrumb a { color: rgba(255,255,255,0.9); text-decoration: none; transition: color 0.2s; }
.st-breadcrumb a:hover { color: var(--st-accent-on-dark); }
.st-breadcrumb li { display: inline-flex; align-items: center; gap: 10px; }
.st-breadcrumb li + li::before { content: "\f285"; font-family: "bootstrap-icons"; font-size: 10px; color: rgba(255,255,255,0.4); }
.st-breadcrumb .is-current { color: var(--st-accent-on-dark); font-weight: 600; }

/* --------------------------------------------------------------------------
   PRESS / "Basında Biz" list
   -------------------------------------------------------------------------- */
.st-press { display: grid; gap: 28px; }
.st-press__item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 0;
  background: #fff;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius);
  overflow: hidden;
  box-shadow: var(--st-shadow-sm);
  transition: transform 0.3s var(--st-ease), box-shadow 0.3s var(--st-ease);
}
.st-press__item:hover { transform: translateY(-6px); box-shadow: var(--st-shadow); }

.st-press__date {
  background: linear-gradient(160deg, var(--st-navy) 0%, var(--st-navy-2) 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px 12px;
  position: relative;
}
.st-press__date::after {
  content: "";
  position: absolute;
  right: 0; top: 18%;
  height: 64%; width: 3px;
  background: var(--st-gold);
  border-radius: 2px;
}
.st-press__day { font-size: 40px; font-weight: 800; line-height: 1; }
.st-press__mon { font-size: 14px; text-transform: uppercase; letter-spacing: 2px; margin-top: 6px; color: var(--st-accent-on-dark); }
.st-press__yr { font-size: 13px; opacity: 0.7; margin-top: 2px; }

.st-press__body { padding: 30px 34px; min-width: 0; }
.st-press__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--st-gold-2);
  background: var(--st-gold-soft);
  padding: 5px 12px;
  border-radius: 50px;
  margin-bottom: 14px;
}
.st-press__body h2 {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--st-ink);
  margin: 0 0 14px;
}
.st-press__content { color: var(--st-muted); font-size: 16px; line-height: 1.75; }
.st-press__content p { margin: 0 0 14px; }
.st-press__content img { max-width: 100%; height: auto; border-radius: var(--st-radius-sm); margin: 10px 0; }
.st-press__content a { color: var(--st-gold); font-weight: 600; }

/* collapsed-by-default long content with smooth expand */
.st-press__content.is-clamped {
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
  position: relative;
}
.st-press__toggle {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--st-navy);
  font-weight: 700;
  font-size: 14px;
  padding: 0;
}
.st-press__toggle i { color: var(--st-gold-2); transition: transform 0.3s var(--st-ease); }
.st-press__toggle[aria-expanded="true"] i { transform: rotate(180deg); }

/* --------------------------------------------------------------------------
   PROSE – rich text rendered from DB (Html.Raw) readable typography
   -------------------------------------------------------------------------- */
.st-prose { color: var(--st-muted); font-size: 17px; line-height: 1.85; }
.st-prose > :first-child { margin-top: 0; }
.st-prose p { margin: 0 0 18px; }
.st-prose h1, .st-prose h2, .st-prose h3, .st-prose h4 {
  color: var(--st-ink); font-weight: 700; line-height: 1.3; margin: 30px 0 12px;
}
.st-prose h2 { font-size: 26px; }
.st-prose h3 { font-size: 21px; }
.st-prose ul, .st-prose ol { padding-left: 1.25em; margin: 0 0 18px; }
.st-prose li { margin-bottom: 9px; }
.st-prose img { max-width: 100%; height: auto; border-radius: var(--st-radius-sm); margin: 12px 0; }
.st-prose a { color: var(--st-gold); font-weight: 600; }
.st-prose strong, .st-prose b { color: var(--st-ink); }
.st-prose blockquote {
  border-left: 4px solid var(--st-gold);
  background: var(--st-bg-soft);
  margin: 22px 0;
  padding: 16px 22px;
  border-radius: 0 var(--st-radius-sm) var(--st-radius-sm) 0;
  color: var(--st-ink);
}

/* --------------------------------------------------------------------------
   MISSION / VISION cards
   -------------------------------------------------------------------------- */
.st-mv {
  position: relative;
  background: #fff;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius);
  padding: 40px;
  height: 100%;
  overflow: hidden;
  transition: transform 0.35s var(--st-ease), box-shadow 0.35s var(--st-ease), border-color 0.35s var(--st-ease);
}
.st-mv:hover { transform: translateY(-8px); box-shadow: var(--st-shadow); border-color: transparent; }
.st-mv::after {
  content: "";
  position: absolute;
  right: -40px; top: -40px;
  width: 150px; height: 150px;
  border-radius: 50%;
  background: var(--st-gold-soft);
  transition: transform 0.5s var(--st-ease);
}
.st-mv:hover::after { transform: scale(1.6); }
.st-mv__icon {
  position: relative;
  z-index: 1;
  width: 70px; height: 70px;
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px; color: #fff;
  background: linear-gradient(135deg, var(--st-navy), var(--st-navy-2));
  margin-bottom: 22px;
}
.st-mv h3 { position: relative; z-index: 1; font-size: 24px; font-weight: 700; margin: 0 0 12px; }
.st-mv p { position: relative; z-index: 1; color: var(--st-muted); font-size: 16px; line-height: 1.75; margin: 0; }

/* --------------------------------------------------------------------------
   TIMELINE – kurumsal kilometre taşları
   -------------------------------------------------------------------------- */
.st-timeline { position: relative; padding-left: 36px; }
.st-timeline::before {
  content: "";
  position: absolute;
  left: 9px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--st-gold), var(--st-line));
}
.st-tl-item { position: relative; padding-bottom: 38px; }
.st-tl-item:last-child { padding-bottom: 0; }
.st-tl-item::before {
  content: "";
  position: absolute;
  left: -32px; top: 4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 4px solid var(--st-gold);
  box-shadow: 0 0 0 4px var(--st-gold-soft);
}
.st-tl-year {
  display: inline-block;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--st-gold-2);
  background: var(--st-gold-soft);
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 8px;
}
.st-tl-item h3 { font-size: 19px; font-weight: 700; color: var(--st-ink); margin: 0 0 6px; }
.st-tl-item p { color: var(--st-muted); font-size: 15px; line-height: 1.7; margin: 0; }

/* --------------------------------------------------------------------------
   EXCAVATOR (kepçe) – scroll ile kazıyan dekoratif animasyon
   -------------------------------------------------------------------------- */
/* Kepçe, timeline boyunca aşağı inerken görünür kalsın diye ekranın
   orta-üstünde sabitlenir; sol sütun timeline yüksekliğine uzadığı için
   tüm zaman çizelgesi boyunca "kaza kaza" ilerliyormuş gibi takip eder. */
.st-dig-sticky {
  position: sticky;
  top: 22vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.st-dig {
  width: 100%;
  max-width: 460px;
  margin: 0 auto;
}
.st-dig svg { width: 100%; height: auto; display: block; overflow: visible; }
.st-dig__machine path,
.st-dig__machine rect,
.st-dig__machine circle { transition: none; }
/* arm/bucket dönüşleri JS ile transform attribute üzerinden yapılır */
.st-dig__dust { opacity: 0; }

@media (max-width: 991px) {
  .st-dig-sticky { position: static; margin-bottom: 30px; }
  .st-dig { max-width: 340px; }
}
@media (prefers-reduced-motion: reduce) {
  .st-dig-sticky { position: static; }
}

/* --------------------------------------------------------------------------
   CONTENT CARD – tek sayfalık zengin metin (Grup Firmaları, KVKK vb.)
   -------------------------------------------------------------------------- */
.st-content-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius);
  box-shadow: var(--st-shadow);
  padding: 56px 56px 48px;
  margin-top: 34px;
}
.st-content-card__icon {
  position: absolute;
  top: -30px;
  left: 56px;
  width: 64px; height: 64px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: #fff;
  background: linear-gradient(135deg, var(--st-navy), var(--st-navy-2));
  box-shadow: var(--st-shadow-sm);
}
.st-content-card__icon i { color: var(--st-accent-on-dark); }
@media (max-width: 575px) {
  .st-content-card { padding: 44px 22px 30px; }
  .st-content-card__icon { left: 22px; }
}

/* --------------------------------------------------------------------------
   CONTACT page
   -------------------------------------------------------------------------- */
.st-contact-info {
  display: block;
  height: 100%;
  background: #fff;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius);
  padding: 30px 26px;
  text-align: center;
  text-decoration: none;
  color: var(--st-ink);
  transition: transform 0.3s var(--st-ease), box-shadow 0.3s var(--st-ease), border-color 0.3s var(--st-ease);
}
.st-contact-info:hover { transform: translateY(-6px); box-shadow: var(--st-shadow); border-color: transparent; color: var(--st-ink); }
.st-contact-info__icon {
  width: 60px; height: 60px;
  margin: 0 auto 16px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: #fff;
  background: linear-gradient(135deg, var(--st-navy), var(--st-navy-2));
  transition: background 0.3s var(--st-ease);
}
.st-contact-info:hover .st-contact-info__icon { background: linear-gradient(135deg, var(--st-gold), var(--st-gold-2)); }
.st-contact-info h3 { font-size: 18px; font-weight: 700; margin: 0 0 8px; }
.st-contact-info p { color: var(--st-muted); font-size: 15px; margin: 0; line-height: 1.6; }

.st-map {
  height: 100%;
  min-height: 420px;
  border-radius: var(--st-radius);
  overflow: hidden;
  box-shadow: var(--st-shadow-sm);
  border: 1px solid var(--st-line);
}
.st-map iframe { width: 100%; height: 100%; min-height: 420px; border: 0; display: block; }

.st-form-card {
  background: #fff;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius);
  box-shadow: var(--st-shadow);
  padding: 36px;
  height: 100%;
}
.st-form-card h3 { font-size: 24px; font-weight: 800; margin: 0 0 6px; }
.st-form-card__sub { color: var(--st-muted); font-size: 15px; margin: 0 0 22px; }
@media (max-width: 575px) { .st-form-card { padding: 24px; } }

/* --------------------------------------------------------------------------
   KARİYER – yaş dağılımı barları & eğitim kartları
   -------------------------------------------------------------------------- */
.st-panel {
  background: #fff;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius);
  box-shadow: var(--st-shadow-sm);
  padding: 34px;
  height: 100%;
}
.st-panel__title { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 700; margin: 0 0 22px; color: var(--st-ink); }
.st-panel__title i { color: var(--st-gold-2); font-size: 22px; }

.st-agebar { margin-bottom: 18px; }
.st-agebar:last-child { margin-bottom: 0; }
.st-agebar__head { display: flex; justify-content: space-between; font-size: 14px; font-weight: 600; color: var(--st-ink); margin-bottom: 7px; }
.st-agebar__head span:last-child { color: var(--st-gold-2); }
.st-agebar__track { height: 10px; background: var(--st-bg-soft); border-radius: 50px; overflow: hidden; }
.st-agebar__fill {
  height: 100%;
  width: 0;
  border-radius: 50px;
  background: linear-gradient(90deg, var(--st-navy), var(--st-gold));
  transition: width 1.2s var(--st-ease);
}
.st-reveal.is-visible .st-agebar__fill { width: var(--st-w, 0); }

.st-edu {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--st-line);
  border-radius: var(--st-radius-sm);
  height: 100%;
  transition: transform 0.25s var(--st-ease), box-shadow 0.25s var(--st-ease), border-color 0.25s var(--st-ease);
}
.st-edu:hover { transform: translateY(-4px); box-shadow: var(--st-shadow-sm); border-color: transparent; }
.st-edu__icon {
  width: 46px; height: 46px; flex: 0 0 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff;
  background: linear-gradient(135deg, var(--st-navy), var(--st-navy-2));
}
.st-edu__num { font-size: 24px; font-weight: 800; line-height: 1; color: var(--st-ink); }
.st-edu__label { font-size: 13px; color: var(--st-muted); text-transform: uppercase; letter-spacing: 0.5px; }

.st-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--st-muted);
}
.st-empty i { font-size: 46px; color: var(--st-line); display: block; margin-bottom: 16px; }

@media (max-width: 575px) {
  .st-press__item { grid-template-columns: 1fr; }
  .st-press__date {
    flex-direction: row;
    gap: 10px;
    padding: 14px;
    justify-content: flex-start;
  }
  .st-press__date::after { display: none; }
  .st-press__day { font-size: 26px; }
  .st-press__mon { margin-top: 0; }
  .st-press__yr { margin-top: 0; }
  .st-press__body { padding: 22px; }
}

/* --------------------------------------------------------------------------
   Reveal-on-scroll (lightweight, no library)
   -------------------------------------------------------------------------- */
.st-reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--st-ease), transform 0.7s var(--st-ease); }
.st-reveal.is-visible { opacity: 1; transform: none; }
.st-reveal[data-st-delay="1"] { transition-delay: 0.1s; }
.st-reveal[data-st-delay="2"] { transition-delay: 0.2s; }
.st-reveal[data-st-delay="3"] { transition-delay: 0.3s; }
.st-reveal[data-st-delay="4"] { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  .st-reveal { opacity: 1 !important; transform: none !important; }
  .st-hero { background-attachment: scroll; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}

/* --------------------------------------------------------------------------
   Responsive paddings
   -------------------------------------------------------------------------- */
@media (max-width: 991px) {
  .st-section { padding: 72px 0; }
  .st-career, .st-contact-cta { padding: 40px 28px; }
  .st-contact-cta { flex-direction: column; text-align: center; align-items: stretch; }
}
@media (max-width: 575px) {
  .st-section { padding: 56px 0; }
  .st-hero__cta { flex-direction: column; }
  .st-hero__cta .st-btn { justify-content: center; }
}