/* ==========================================================================
   GFUNK FILM — Production House
   Typographic / architectural rebuild over Bootstrap 5
   Color:   --ink #1a1a1a   --gold #d4af37   --paper #f2efe8   --grey #8c8c8c
   Type:    Oswald (display)  /  Inter (body)
   ========================================================================== */

:root{
  --ink: #1a1a1a;
  --ink-deep: #101010;
  --gold: #d4af37;
  --gold-dim: #8a7429;
  --paper: #f2efe8;
  --grey: #8c8c8c;
  --grey-dim: #55554f;
  --rule: rgba(242,239,232,0.09);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--ink);
  color: var(--paper);
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

h1,h2,h3{ font-family: 'Oswald', sans-serif; margin: 0; color: var(--paper); }
a{ color: inherit; text-decoration: none; }

/* ---------------- Film grain overlay (CSS-only, animated) ---------------- */
body::before{
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: 0.045;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 160px 160px;
  animation: grain-shift 1s steps(6) infinite;
}
@keyframes grain-shift{
  0%   { transform: translate(0,0); }
  16%  { transform: translate(-6%,4%); }
  33%  { transform: translate(4%,-8%); }
  50%  { transform: translate(-8%,-3%); }
  66%  { transform: translate(6%,6%); }
  83%  { transform: translate(-3%,7%); }
  100% { transform: translate(0,0); }
}
@media (prefers-reduced-motion: reduce){ body::before{ animation: none; } }

/* ---------------- Header (Buzlu Cam - Daha Geçirgen) ---------------- */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 200;
  padding: 26px 0;
  /* Siyahlık oranı 0.70'den 0.35'e düşürüldü, yarı yarıya şeffaf */
  background: rgba(10, 10, 10, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
}
.brand-mark{
  font-family:'Oswald', sans-serif;
  font-size: 15px;
  letter-spacing: 0.22em;
  font-weight: 500;
}
.brand-mark span{ color: var(--gold); }

/* Menü: Baş harf büyük, bold ve Oswald fontu ile tok görünüm */
.site-header nav a, .mobile-nav-links a {
  font-family: 'Oswald', sans-serif;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: capitalize;
  color: var(--grey);
  transition: color .3s ease;
}
.site-header nav a:hover, .mobile-nav-links a:hover,
.site-header nav a.active, .mobile-nav-links a.active { color: var(--gold); }

/* Mobile Offcanvas */
.mobile-toggle {
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 4px;
  cursor: pointer;
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--paper);
}
.mobile-offcanvas {
  background-color: var(--ink-deep);
  color: var(--paper);
  border-left: 1px solid var(--rule);
}
.btn-close-mobile {
  background: none;
  border: none;
  color: var(--paper);
  font-size: 1.5rem;
  cursor: pointer;
}


/* ---------------- Hero ---------------- */
.hero{
  min-height: 100vh;
  padding: 120px 24px 80px;
  position: relative;
  background: linear-gradient(180deg, rgba(26, 26, 26, 0.72) 0%, rgba(26, 26, 26, 0.96) 100%), 
              url('../img/hero-bg.jpg') center/cover no-repeat;
  overflow: hidden;
}

.hero-kicker{
  font-family:'Oswald', sans-serif;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--gold-dim);
  margin-bottom: 28px;
  position: relative; z-index: 1;
}
.hero-logo{
  font-weight: 300;
  font-size: clamp(46px, 9vw, 104px);
  letter-spacing: 0.02em;
  line-height: 0.95;
  position: relative; z-index: 1;
}
.hero-logo b{ font-weight: 600; color: var(--gold); }
.hero-tagline{
  margin-top: 24px;
  font-size: 15px;
  letter-spacing: 0.03em;
  color: var(--grey);
  position: relative; z-index: 1;
}
.hero-rule{
  width: 1px; height: 64px;
  background: linear-gradient(to bottom, var(--gold-dim), transparent);
  margin-top: 50px;
  position: relative; z-index: 1;
}

/* ---------------- Sections ---------------- */
.section{ padding: 110px 0; border-top: 1px solid var(--rule); }
.section-label{
  font-family:'Oswald', sans-serif;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
  padding-top: 4px;
}

/* Başlıklar onayladığın büyük boyutlara (clamp) getirildi */
.section-title{
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 400;
  line-height: 1.2;
  max-width: 800px;
  margin-bottom: 24px;
}

/* Paragraf metinleri (lede) büyütüldü */
.lede{ max-width: 65ch; font-size: 1.15rem; line-height: 1.75; color: #d8d5cc; font-weight: 300; }
.lede + .lede{ margin-top: 18px; }

/* ---------------- Partners (Standards) ---------------- */
.partner-mark{
  font-family:'Oswald', sans-serif;
  font-size: 23px;
  letter-spacing: 0.08em;
  color: var(--grey-dim);
  transition: color .35s ease;
  cursor: default;
}
.partner-mark:hover{ color: var(--gold); }

/* ---------------- Equipment / lens cards (strictly typographic) ---------------- */
.subhead{
  font-family:'Oswald', sans-serif;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--grey);
  margin-bottom: 20px;
  padding-top: 36px;
  border-top: 1px solid var(--rule);
}
.subhead:first-of-type{ border-top: none; padding-top: 0; }

.eq-card{
  height: 100%;
  border: 1px solid var(--rule);
  padding: 30px 26px;
  transition: border-color .35s ease;
}
.eq-card:hover{ border-color: var(--gold-dim); }
.eq-card h3{
  font-size: 19px;
  font-weight: 500;
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}
.eq-tag{
  display:block;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--grey);
}
.eq-card .eq-focal{ 
  display:block;
  font-size: 13px;
  color: var(--grey);
  letter-spacing: 0.01em;
  margin-bottom: 14px;
}
.eq-card p{
  font-size: 14.5px; 
  color: #c9c6bd;
  font-weight: 300;
  margin: 0;
  margin-top: 14px;
}

.btn-gold{
  display:inline-block;
  padding: 15px 38px;
  border: 1px solid var(--gold-dim);
  font-family:'Oswald', sans-serif;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--paper);
  transition: background .35s ease, color .35s ease, border-color .35s ease;
}
.btn-gold:hover{
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-deep);
}

/* ---------------- Footer (centered) ---------------- */
footer{
  background: var(--ink-deep);
  border-top: 1px solid var(--rule);
  padding: 70px 0 40px;
}
.footer-brand{
  font-family:'Oswald', sans-serif;
  font-size: 17px;
  letter-spacing: 0.06em;
}
.footer-brand span{ color: var(--gold); }
footer p{ font-size: 13.5px; color: #cfccc3; }
footer a{ color: inherit; transition: color .3s ease; }
footer a:hover{ color: var(--gold); }

/* Instagram Link & Hover */
.ig-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}
.ig-link .ig-icon {
  width: 16px;
  height: 16px;
  display: block;
  transition: transform 0.3s ease;
  color: var(--grey);
}
.ig-link:hover,
.ig-link:hover span {
  color: var(--gold) !important;
}
.ig-link:hover .ig-icon {
  transform: scale(1.1);
}
.ig-link:hover .ig-icon rect,
.ig-link:hover .ig-icon circle:not(:last-child) {
  stroke: var(--gold) !important;
}
.ig-link:hover .ig-icon circle:last-child {
  fill: var(--gold) !important;
}

.footer-base{ font-size: 12px; color: var(--grey); letter-spacing: 0.02em; }
.footer-base a{ color: var(--paper); }
.footer-base a:hover{ color: var(--gold); }

/* Gfunk Group Highlight & Hover Effect */
.footer-gfunk-group {
  color: var(--gold) !important;
  font-weight: 700;
  transition: opacity 0.3s ease, color 0.3s ease;
}
.footer-gfunk-group:hover {
  opacity: 0.7;
}

/* ---------------- Set the mood (audio easter egg) ---------------- */
.mood-toggle{
  position: fixed;
  right: 22px;
  bottom: 20px;
  z-index: 300;
  background: transparent;
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--grey-dim);
  cursor: pointer;
  padding: 6px 4px;
  transition: color .3s ease;
}
.mood-toggle:hover,
.mood-toggle[aria-pressed="true"]{ color: var(--gold); }