/* =========================================================
   BERSERA — Kurumsal Web Sitesi
   Bootstrap 5 üzerine kurumsal tema (koyu zemin + altın)
   ========================================================= */

:root {
  --bs-body-bg: #0d0d0f;
  --bs-body-color: #c9c6c0;

  --brs-black: #0d0d0f;
  --brs-panel: #141417;
  --brs-panel-2: #1b1b1f;
  --brs-line: rgba(212, 175, 55, .18);
  --brs-gold: #d4af37;
  --brs-gold-soft: #e7cd83;
  --brs-gold-deep: #a9821f;
  --brs-ink: #f5f2ea;
  --brs-muted: #98948c;

  --brs-grad: linear-gradient(135deg, #f3dfa2 0%, #d4af37 38%, #a9821f 70%, #e7cd83 100%);
  --brs-nav-h: 78px;
}

/* ---------- Temel ---------- */
body {
  background: var(--brs-black);
  color: var(--bs-body-color);
  font-family: "Jost", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: .2px;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, .display-serif {
  font-family: "Cormorant Garamond", Georgia, serif;
  color: var(--brs-ink);
  font-weight: 600;
  letter-spacing: .5px;
}

a { text-decoration: none; }
::selection { background: var(--brs-gold); color: #0d0d0f; }

.text-gold { color: var(--brs-gold) !important; }
.text-muted-brs { color: var(--brs-muted) !important; }
.bg-panel { background: var(--brs-panel); }
.bg-panel-2 { background: var(--brs-panel-2); }

.gold-line {
  width: 64px; height: 2px; background: var(--brs-grad);
  border: 0; opacity: 1; margin: 1rem 0;
}
.gold-line.mx-auto { margin-left: auto; margin-right: auto; }

.eyebrow {
  font-size: .74rem; letter-spacing: .32em; text-transform: uppercase;
  color: var(--brs-gold); font-weight: 500;
}

.section { padding: 6rem 0; }
.section-sm { padding: 4rem 0; }

/* ---------- Navbar ---------- */
.navbar-brs {
  background: rgba(13, 13, 15, .82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--brs-line);
  min-height: var(--brs-nav-h);
  transition: background .3s ease, box-shadow .3s ease;
}
.navbar-brs.is-scrolled {
  background: rgba(13, 13, 15, .97);
  box-shadow: 0 12px 40px rgba(0, 0, 0, .55);
}
.navbar-brs .navbar-brand img { height: 46px; width: auto; }
.brand-word {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.55rem; line-height: 1; letter-spacing: .22em;
  background: var(--brs-grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-tag {
  font-size: .56rem; letter-spacing: .3em; color: var(--brs-muted);
  text-transform: uppercase; margin-top: 3px;
}
.navbar-brs .nav-link {
  color: #d8d5ce; font-size: .82rem; letter-spacing: .16em;
  text-transform: uppercase; padding: .6rem 1rem !important; position: relative;
}
.navbar-brs .nav-link::after {
  content: ""; position: absolute; left: 1rem; right: 1rem; bottom: .35rem;
  height: 1px; background: var(--brs-grad); transform: scaleX(0);
  transform-origin: left; transition: transform .3s ease;
}
.navbar-brs .nav-link:hover, .navbar-brs .nav-link.active { color: var(--brs-gold); }
.navbar-brs .nav-link:hover::after, .navbar-brs .nav-link.active::after { transform: scaleX(1); }
.navbar-toggler { border-color: var(--brs-line); }
.navbar-toggler:focus { box-shadow: none; }

/* ---------- Butonlar ---------- */
.btn-gold {
  background: var(--brs-grad); color: #10100f; border: 0;
  font-size: .78rem; letter-spacing: .18em; text-transform: uppercase;
  padding: .85rem 1.9rem; font-weight: 600; border-radius: 2px;
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
}
.btn-gold:hover {
  color: #10100f; filter: brightness(1.08);
  transform: translateY(-2px); box-shadow: 0 12px 30px rgba(212, 175, 55, .28);
}
.btn-ghost {
  background: transparent; color: var(--brs-gold);
  border: 1px solid rgba(212, 175, 55, .45); border-radius: 2px;
  font-size: .78rem; letter-spacing: .18em; text-transform: uppercase;
  padding: .85rem 1.9rem; font-weight: 500;
  transition: background .25s ease, color .25s ease, transform .25s ease;
}
.btn-ghost:hover { background: var(--brs-gold); color: #10100f; transform: translateY(-2px); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding-top: var(--brs-nav-h);
  background:
    radial-gradient(120% 90% at 78% 20%, rgba(212, 175, 55, .13) 0%, transparent 55%),
    linear-gradient(115deg, #0d0d0f 0%, #121216 46%, #08080a 100%);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(212, 175, 55, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 175, 55, .045) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(75% 65% at 50% 40%, #000 0%, transparent 78%);
}
.hero::after {
  content: ""; position: absolute; top: -10%; right: -12%;
  width: 62vw; height: 120%; transform: skewX(-12deg);
  background: linear-gradient(200deg, rgba(212, 175, 55, .10), transparent 62%);
  border-left: 1px solid rgba(212, 175, 55, .28);
}
.hero > .container { position: relative; z-index: 2; }
.hero-title {
  font-size: clamp(2.6rem, 6.2vw, 5rem); line-height: 1.06; margin-bottom: 1.25rem;
}
.hero-title .gold {
  background: var(--brs-grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-lead { font-size: 1.06rem; max-width: 46ch; color: #b8b4ac; }
.hero-logo { max-width: 300px; width: 62%; filter: drop-shadow(0 22px 60px rgba(212, 175, 55, .3)); }
.hero-pill {
  display: inline-flex; align-items: center; gap: .55rem;
  border: 1px solid var(--brs-line); border-radius: 999px;
  padding: .45rem 1.1rem; font-size: .7rem; letter-spacing: .24em;
  text-transform: uppercase; color: var(--brs-gold-soft);
  background: rgba(212, 175, 55, .05);
}
.scroll-cue {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  z-index: 2; color: var(--brs-muted); font-size: .64rem;
  letter-spacing: .3em; text-transform: uppercase; text-align: center;
}
.scroll-cue span {
  display: block; width: 1px; height: 46px; margin: .7rem auto 0;
  background: linear-gradient(var(--brs-gold), transparent);
  animation: cue 2.2s ease-in-out infinite;
}
@keyframes cue { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }

/* ---------- Sayfa başlığı (iç sayfalar) ---------- */
.page-head {
  padding: calc(var(--brs-nav-h) + 5rem) 0 4.5rem;
  background:
    radial-gradient(90% 120% at 85% 0%, rgba(212, 175, 55, .12) 0%, transparent 60%),
    linear-gradient(160deg, #101013, #08080a);
  border-bottom: 1px solid var(--brs-line);
}
.page-head h1 { font-size: clamp(2.2rem, 4.6vw, 3.4rem); }
.breadcrumb { --bs-breadcrumb-divider-color: #6f6b64; font-size: .78rem; }
.breadcrumb a { color: var(--brs-muted); }
.breadcrumb a:hover { color: var(--brs-gold); }
.breadcrumb-item.active { color: var(--brs-gold); }

/* ---------- Kartlar ---------- */
.brs-card {
  background: linear-gradient(160deg, var(--brs-panel) 0%, #101013 100%);
  border: 1px solid var(--brs-line); border-radius: 3px;
  padding: 2.3rem 1.9rem; height: 100%; position: relative; overflow: hidden;
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.brs-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 2px;
  background: var(--brs-grad); transform: scaleX(0); transform-origin: left;
  transition: transform .4s ease;
}
.brs-card:hover {
  transform: translateY(-6px); border-color: rgba(212, 175, 55, .42);
  box-shadow: 0 22px 50px rgba(0, 0, 0, .55);
}
.brs-card:hover::before { transform: scaleX(1); }
.brs-card h3 { font-size: 1.42rem; margin-bottom: .6rem; padding-right: 2.4rem; }
.brs-card p { font-size: .93rem; color: var(--brs-muted); margin-bottom: 0; }
.brs-card .card-no {
  position: absolute; right: 1.2rem; top: .6rem;
  font-family: "Cormorant Garamond", Georgia, serif; font-size: 3rem;
  color: rgba(212, 175, 55, .10); line-height: 1; pointer-events: none;
}

.icon-badge {
  width: 56px; height: 56px; display: grid; place-items: center;
  border: 1px solid rgba(212, 175, 55, .38); border-radius: 50%;
  color: var(--brs-gold); font-size: 1.4rem; margin-bottom: 1.3rem;
  background: rgba(212, 175, 55, .06);
}

/* ---------- Proje kartı ---------- */
.project-card {
  position: relative; display: block; overflow: hidden; border-radius: 3px;
  border: 1px solid var(--brs-line); aspect-ratio: 4 / 3;
}
.project-visual {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, #1c1c21, #0b0b0d);
  transition: transform .6s ease;
}
.project-visual::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(212, 175, 55, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 175, 55, .07) 1px, transparent 1px);
  background-size: 34px 34px;
}
.project-card:hover .project-visual { transform: scale(1.06); }
.project-body {
  position: absolute; inset: auto 0 0 0; z-index: 2; padding: 1.6rem;
  background: linear-gradient(transparent, rgba(8, 8, 10, .93) 55%);
}
.project-body h3 { font-size: 1.3rem; margin-bottom: .25rem; }
.project-body .meta {
  font-size: .7rem; letter-spacing: .22em; text-transform: uppercase; color: var(--brs-gold);
}
.project-card .corner {
  position: absolute; top: 1rem; right: 1rem; z-index: 2;
  font-size: .64rem; letter-spacing: .2em; text-transform: uppercase;
  border: 1px solid rgba(212, 175, 55, .45); color: var(--brs-gold-soft);
  padding: .3rem .7rem; background: rgba(8, 8, 10, .6);
}

/* ---------- Blog ---------- */
.post-card {
  background: var(--brs-panel); border: 1px solid var(--brs-line);
  border-radius: 3px; height: 100%; overflow: hidden;
  transition: transform .35s ease, border-color .35s ease;
}
.post-card:hover { transform: translateY(-6px); border-color: rgba(212, 175, 55, .4); }
.post-thumb {
  height: 190px; position: relative;
  background: linear-gradient(150deg, #1d1d22, #0c0c0e);
  border-bottom: 1px solid var(--brs-line);
}
.post-thumb::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(70% 70% at 30% 20%, rgba(212, 175, 55, .16), transparent 65%);
}
.post-card .post-body { padding: 1.6rem; }
.post-card h3 { font-size: 1.24rem; }

/* ---------- İstatistik ---------- */
.stat-num {
  font-family: "Cormorant Garamond", Georgia, serif; font-size: 3.1rem; line-height: 1;
  background: var(--brs-grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-label {
  font-size: .72rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--brs-muted); margin-top: .5rem;
}

/* ---------- Neden Bersera ---------- */
.reason {
  display: flex; gap: 1.1rem; padding: 1.4rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}
.reason:last-child { border-bottom: 0; }
.reason i { color: var(--brs-gold); font-size: 1.3rem; margin-top: .2rem; }
.reason h4 { font-size: 1.12rem; margin-bottom: .25rem; }
.reason p { font-size: .9rem; color: var(--brs-muted); margin: 0; }

/* ---------- Form ---------- */
.form-control, .form-select {
  background: #101013; border: 1px solid rgba(255, 255, 255, .09);
  color: var(--brs-ink); border-radius: 2px; padding: .85rem 1rem; font-size: .93rem;
}
.form-control:focus, .form-select:focus {
  background: #101013; color: var(--brs-ink);
  border-color: rgba(212, 175, 55, .55);
  box-shadow: 0 0 0 .18rem rgba(212, 175, 55, .12);
}
.form-control::placeholder { color: #6a6660; }
.form-label {
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--brs-muted); margin-bottom: .5rem;
}
.form-select option { background: #101013; }

/* ---------- Accordion / SSS ---------- */
.accordion-item { background: var(--brs-panel); border: 1px solid var(--brs-line); margin-bottom: .75rem; }
.accordion-button {
  background: var(--brs-panel); color: var(--brs-ink);
  font-family: "Cormorant Garamond", Georgia, serif; font-size: 1.2rem;
}
.accordion-button:not(.collapsed) { background: var(--brs-panel-2); color: var(--brs-gold); box-shadow: none; }
.accordion-button:focus { box-shadow: none; border-color: var(--brs-line); }
.accordion-button::after { filter: invert(72%) sepia(52%) saturate(520%) hue-rotate(1deg); }
.accordion-body { color: var(--brs-muted); font-size: .94rem; }

/* ---------- CTA şeridi ---------- */
.cta-strip {
  background:
    radial-gradient(80% 140% at 20% 50%, rgba(212, 175, 55, .16), transparent 60%),
    linear-gradient(120deg, #131317, #0a0a0c);
  border-top: 1px solid var(--brs-line); border-bottom: 1px solid var(--brs-line);
}

/* ---------- İletişim bilgi satırı ---------- */
.contact-line { display: flex; gap: 1rem; align-items: flex-start; padding: 1.1rem 0; }
.contact-line i { color: var(--brs-gold); font-size: 1.15rem; width: 22px; }
.contact-line .label {
  font-size: .68rem; letter-spacing: .22em; text-transform: uppercase; color: var(--brs-muted);
}
.contact-line .value { color: var(--brs-ink); font-size: .98rem; }
.contact-line a.value:hover { color: var(--brs-gold); }

/* ---------- Footer ---------- */
.footer { background: #08080a; border-top: 1px solid var(--brs-line); padding-top: 4.5rem; }
.footer h5 {
  font-size: .78rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--brs-gold); font-family: "Jost", sans-serif; margin-bottom: 1.3rem;
}
.footer a { color: var(--brs-muted); font-size: .9rem; }
.footer a:hover { color: var(--brs-gold); }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer ul li { margin-bottom: .6rem; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .06); margin-top: 3rem;
  padding: 1.5rem 0; font-size: .82rem; color: #6f6b64;
}
.social-dot {
  width: 40px; height: 40px; display: grid; place-items: center;
  border: 1px solid var(--brs-line); border-radius: 50%;
  color: var(--brs-muted); transition: all .3s ease;
}
.social-dot:hover { border-color: var(--brs-gold); color: var(--brs-gold); transform: translateY(-3px); }

/* ---------- Geri dön ---------- */
.to-top {
  position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: 1030;
  width: 46px; height: 46px; display: grid; place-items: center;
  background: var(--brs-grad); color: #10100f; border: 0; border-radius: 2px;
  opacity: 0; pointer-events: none; transition: opacity .3s ease, transform .3s ease;
}
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-3px); }

/* ---------- Görünürlük animasyonu ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-cue span { animation: none; }
}

/* ---------- Duyarlılık ---------- */
@media (max-width: 991.98px) {
  .section { padding: 4rem 0; }
  .navbar-brs .navbar-collapse {
    background: #0f0f12; border: 1px solid var(--brs-line);
    margin-top: .8rem; padding: 1rem; border-radius: 3px;
  }
  .hero { min-height: auto; padding: calc(var(--brs-nav-h) + 4rem) 0 5rem; }
  .hero-logo { max-width: 210px; margin-bottom: 2.5rem; }
  .scroll-cue { display: none; }
}

/* Menü bağlantıları tek satırda kalsın */
.navbar-brs .nav-link { white-space: nowrap; }
@media (min-width: 992px) and (max-width: 1199.98px) {
  .navbar-brs .nav-link { font-size: .74rem; padding: .6rem .7rem !important; }
  .navbar-brs .nav-link::after { left: .7rem; right: .7rem; }
}

/* Bootstrap'in .btn.active kuralı altın butonun rengini ezmesin */
.btn-gold.active, .btn-gold:active, .btn-gold:focus, .btn-gold:focus-visible {
  background: var(--brs-grad); color: #10100f; border: 0; box-shadow: none;
}
.btn-ghost.active, .btn-ghost:active, .btn-ghost:focus-visible {
  color: var(--brs-gold); border-color: rgba(212, 175, 55, .45);
}
.btn-gold:focus-visible, .btn-ghost:focus-visible { outline: 2px solid var(--brs-gold-soft); outline-offset: 2px; }