/* ==========================================================================
   FRÄNKISCHE TÜRKİYE — Co-Flex / Kabuflex mikro-site
   Ortak stil dosyası (tüm sayfalar bunu kullanır)
   ========================================================================== */

:root{
  --yellow: #FFD400;
  --yellow-deep: #E6BE00;
  --ink: #15140F;
  --ink-soft: #2B2A22;
  --paper: #EFEFE9;
  --paper-deep: #E4E4DB;
  --white: #FFFFFF;
  --steel: #63645C;
  --steel-light: #8A8B80;
  --line: #D3D3C7;
  --danger: #B3261E;

  --font-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --container: 1180px;
  --radius: 2px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; }
h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.02;
  margin: 0;
}
p{ margin: 0 0 1em; }
.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content: "";
  width: 22px;
  height: 2px;
  background: var(--yellow-deep);
  display: inline-block;
}
.sr-only{
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
:focus-visible{
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}
.yellow-focus:focus-visible{
  outline: 3px solid var(--ink);
  outline-offset: 3px;
}

/* ---------- corrugated-pipe rule (site signature motif) ---------- */
.corr-rule{
  height: 14px;
  width: 100%;
  background-image: repeating-linear-gradient(
    90deg,
    var(--line) 0px, var(--line) 2px,
    transparent 2px, transparent 16px
  );
  background-position: center;
  background-size: 16px 2px;
  background-repeat: repeat-x;
  position: relative;
}
.corr-rule::before{
  content: "";
  position: absolute; left: 0; right: 0; top: 50%;
  height: 1px; background: var(--line); transform: translateY(-50%);
}

/* ---------- header ---------- */
.site-header{
  position: sticky; top: 0; z-index: 50;
  background: var(--ink);
  border-bottom: 4px solid var(--yellow);
}
/* keep anchor-jump targets (e.g. #hakkimizda, #iletisim) from being
   hidden under the sticky header when navigated to via nav links */
[id]{ scroll-margin-top: 96px; }
.site-header .wrap{
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.logo{
  display: inline-flex; align-items: center; gap: 12px;
  text-decoration: none;
}
.logo-mark{
  background: var(--yellow);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
  padding: 6px 10px 4px;
  text-transform: uppercase;
}
.logo-sub{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper);
  opacity: 0.75;
  display: block;
}
.logo-text-wrap{ display:flex; flex-direction:column; gap:2px; }

.main-nav{
  display: flex; align-items: center; gap: 34px;
}
.main-nav a{
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color .15s ease, color .15s ease;
}
.main-nav a:hover, .main-nav a[aria-current="page"]{
  border-color: var(--yellow);
  color: var(--yellow);
}
.nav-cta{
  background: var(--yellow);
  color: var(--ink) !important;
  padding: 10px 18px !important;
  border: none !important;
  font-weight: 600;
}
.nav-toggle{
  display: none;
  background: none; border: 1px solid var(--paper); color: var(--paper);
  width: 40px; height: 40px; cursor: pointer;
}

/* ---------- hero ---------- */
.hero{
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.hero .wrap{
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 64px;
  min-height: 480px;
}
.hero-copy h1{
  font-size: clamp(40px, 5.6vw, 74px);
  color: var(--white);
}
.hero-copy h1 em{
  font-style: normal;
  color: var(--yellow);
}
.hero-copy .lede{
  font-size: 18px;
  color: var(--paper);
  opacity: 0.86;
  max-width: 46ch;
  margin-top: 18px;
}
.hero-actions{
  display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap;
}
.btn{
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 14px 22px;
  text-decoration: none;
  border: 1px solid var(--yellow);
  transition: transform .12s ease, background .12s ease, color .12s ease;
}
.btn-primary{
  background: var(--yellow); color: var(--ink); font-weight: 600;
}
.btn-primary:hover{ transform: translateY(-2px); }
.btn-ghost{
  background: transparent; color: var(--paper); border-color: var(--steel-light);
}
.btn-ghost:hover{ border-color: var(--yellow); color: var(--yellow); }

.hero-diagram{ position: relative; }
.hero-diagram svg{ width: 100%; height: auto; }

/* ---------- category cards (home) ---------- */
.category-section{ padding: 88px 0; }
.section-head{ max-width: 62ch; margin-bottom: 48px; }
.section-head h2{ font-size: clamp(30px, 4vw, 46px); }
.section-head .lede{ color: var(--steel); margin-top: 14px; font-size: 17px; }

.category-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.cat-card{
  background: var(--white);
  border: 1px solid var(--line);
  padding: 36px 32px 32px;
  display: flex; flex-direction: column;
  position: relative;
  text-decoration: none;
  color: var(--ink);
  transition: border-color .15s ease, transform .15s ease;
}
.cat-card:hover{ border-color: var(--ink); transform: translateY(-3px); }
.cat-card .tag{
  font-family: var(--font-mono);
  font-size: 11.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--steel); margin-bottom: 18px;
}
.cat-card .tag b{ color: var(--ink); }
.cat-card h3{ font-size: 30px; margin-bottom: 6px; }
.cat-card .product-name{
  font-family: var(--font-mono);
  color: var(--yellow-deep);
  font-size: 13px; letter-spacing: 0.08em; margin-bottom: 18px;
}
.cat-card p.desc{ color: var(--steel); font-size: 15px; flex: 1; }
.cat-card .cat-illustration{ margin: 18px 0 22px; }
.cat-card .cat-cta{
  margin-top: 8px;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 13px; text-transform: uppercase;
  letter-spacing: 0.06em; font-weight: 600;
}
.cat-card .cat-cta .arrow{ transition: transform .15s ease; }
.cat-card:hover .cat-cta .arrow{ transform: translateX(4px); }

/* ---------- about strip ---------- */
.about-strip{
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 64px 0;
}
.about-grid{
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: start;
}
.about-grid h2{ font-size: clamp(26px, 3.4vw, 36px); margin-bottom: 18px; }
.about-grid p{ color: var(--steel); font-size: 15.5px; max-width: 56ch; }
.fact-list{ list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.fact-list li{
  border-top: 1px solid var(--line);
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--steel);
}
.fact-list li b{
  display: block;
  font-family: var(--font-body);
  color: var(--ink);
  font-size: 15px;
  margin-bottom: 3px;
}

/* ---------- product page ---------- */
.product-hero .wrap{ min-height: 420px; }
.spec-strip{
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.spec-strip .wrap{
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.spec-item{
  padding: 26px 24px;
  border-left: 1px solid var(--line);
}
.spec-item:first-child{ border-left: none; padding-left: 0; }
.spec-item .k{
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--steel); margin-bottom: 8px;
}
.spec-item .v{
  font-family: var(--font-mono); font-size: 20px; color: var(--ink); font-weight: 500;
}

.content-section{ padding: 80px 0; }
.two-col{
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: start;
}
.two-col h2{ font-size: clamp(28px, 3.6vw, 38px); margin-bottom: 22px; }
.two-col .body-copy p{ color: var(--ink-soft); font-size: 16px; }
.two-col .body-copy p + p{ margin-top: 1em; }
.feature-list{ list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 14px; }
.feature-list li{
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 15px; color: var(--ink-soft);
}
.feature-list li::before{
  content: "";
  width: 9px; height: 9px;
  background: var(--yellow);
  border: 1px solid var(--ink);
  margin-top: 6px;
  flex-shrink: 0;
}
.side-panel{
  background: var(--white); border: 1px solid var(--line); padding: 28px;
}
.side-panel h4{
  font-size: 15px; font-family: var(--font-mono); letter-spacing: 0.06em;
  margin-bottom: 16px; color: var(--steel);
}
.side-panel dl{ margin: 0; display: grid; gap: 12px; }
.side-panel .row{
  display: flex; justify-content: space-between; gap: 12px;
  border-top: 1px solid var(--line); padding-top: 10px;
  font-size: 14px;
}
.side-panel .row:first-of-type{ border-top: none; padding-top: 0; }
.side-panel dt{ color: var(--steel); }
.side-panel dd{ margin: 0; font-family: var(--font-mono); text-align: right; }
.note-box{
  margin-top: 20px;
  border-left: 3px solid var(--yellow-deep);
  background: var(--paper);
  padding: 14px 16px;
  font-size: 13px;
  color: var(--steel);
}

/* ---------- downloads ---------- */
.downloads-section{ background: var(--ink); color: var(--paper); padding: 84px 0; }
.downloads-section .section-head .lede{ color: var(--steel-light); }
.downloads-section .eyebrow{ color: var(--steel-light); }
.downloads-section .eyebrow::before{ background: var(--yellow); }
.downloads-section .section-head h2{ color: var(--white); }

.dl-grid{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.dl-card{
  background: var(--ink-soft);
  border: 1px solid #3a3930;
  padding: 26px 24px 24px;
  position: relative;
  display: flex; flex-direction: column; gap: 14px;
}
.dl-card .dl-type{
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--steel-light);
}
.dl-card h4{
  font-family: var(--font-body); text-transform: none; font-weight: 600;
  font-size: 18px; letter-spacing: normal; color: var(--white);
}
.dl-card p{ color: var(--steel-light); font-size: 13.5px; flex: 1; margin: 0; }
.dl-badge{
  position: absolute; top: 20px; right: 20px;
  background: var(--yellow); color: var(--ink);
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.08em; padding: 4px 8px;
}
.dl-link{
  margin-top: 4px;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 13px; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--white); text-decoration: none;
  border-top: 1px solid #3a3930; padding-top: 14px;
}
.dl-link .arrow{ transition: transform .15s ease; }
.dl-card:hover .dl-link .arrow{ transform: translateY(2px); }

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--yellow);
  padding: 56px 0;
}
.cta-band .wrap{
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.cta-band h3{ font-size: clamp(24px, 3vw, 32px); max-width: 40ch; }
.cta-band .btn-primary{
  border-color: var(--ink); background: var(--ink); color: var(--yellow);
}
.cta-band .btn-primary:hover{ background: var(--ink-soft); }

/* ---------- footer ---------- */
.site-footer{
  background: var(--ink); color: var(--steel-light);
  padding: 56px 0 28px;
}
.footer-grid{
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid #3a3930;
}
.footer-grid h5{
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--steel-light); margin-bottom: 16px;
}
.footer-brand .logo-mark{ margin-bottom: 14px; }
.footer-brand p{ font-size: 13.5px; max-width: 40ch; color: var(--steel-light); }
.footer-links{ list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-links a{ text-decoration: none; font-size: 14px; color: var(--paper); }
.footer-links a:hover{ color: var(--yellow); }
.footer-contact{ font-size: 14px; color: var(--paper); display: grid; gap: 10px; }
.footer-contact a{ text-decoration: none; color: var(--paper); }
.footer-contact a:hover{ color: var(--yellow); }
.footer-bottom{
  padding-top: 22px; display: flex; justify-content: space-between;
  font-size: 12.5px; color: var(--steel-light); flex-wrap: wrap; gap: 10px;
}

/* ---------- applications chips ---------- */
.chip-row{
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px;
}
.chip{
  border: 1px solid var(--line);
  background: var(--white);
  padding: 8px 14px;
  font-size: 13.5px;
  font-family: var(--font-mono);
  color: var(--ink-soft);
}

/* ---------- accessory grid ---------- */
.accessory-grid{
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
  margin-top: 20px;
}
.accessory{
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.accessory .name{
  font-weight: 600; font-size: 15px; margin-bottom: 4px;
}
.accessory .desc{
  color: var(--steel); font-size: 13.5px; margin: 0;
}

/* ---------- technical comparison table ---------- */
.tech-panel{
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 5px solid var(--yellow);
  padding: 32px;
}
.tech-panel h4{
  font-size: 18px; text-transform: none; letter-spacing: normal;
  font-family: var(--font-body); font-weight: 700; margin-bottom: 4px;
}
.tech-panel .sub{
  color: var(--steel); font-size: 13.5px; margin-bottom: 20px;
}
.tech-table{
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.tech-table th, .tech-table td{
  border: 1px solid var(--line);
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
}
.tech-table thead th{
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel);
}
.tech-table thead th:first-child{ color: var(--ink); }
.tech-table tbody th{
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12.5px;
  color: var(--steel);
  background: var(--paper);
  white-space: nowrap;
}
.tech-table tbody td{ color: var(--ink-soft); }
.tech-table-scroll{ overflow-x: auto; }

/* ---------- eco / co2ntrol panel ---------- */
.eco-panel{
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 5px solid var(--yellow);
  padding: 32px;
  margin-top: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: center;
}
.eco-panel .eco-figures{
  display: flex; gap: 28px;
}
.eco-figures .fig{ text-align: center; }
.eco-figures .fig .n{
  font-family: var(--font-display); font-size: 40px; color: var(--ink);
  line-height: 1;
}
.eco-figures .fig .l{
  font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase;
  color: var(--steel); letter-spacing: 0.06em; margin-top: 6px; max-width: 12ch;
}
.eco-panel h4{
  font-size: 18px; text-transform: none; letter-spacing: normal;
  font-family: var(--font-body); font-weight: 700; margin-bottom: 8px;
}
.eco-panel p{ color: var(--steel); font-size: 14px; margin: 0; }

/* ---------- quote box ---------- */
.quote-box{
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  padding: 22px 0;
  margin-top: 32px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.quote-box .mark{
  font-family: var(--font-display); font-size: 44px; color: var(--yellow-deep);
  line-height: 0.6; margin-top: 12px;
}
.quote-box p{
  font-size: 15.5px; color: var(--ink-soft); margin: 0; font-style: italic;
}
.quote-box cite{
  display: block; margin-top: 8px; font-style: normal;
  font-family: var(--font-mono); font-size: 12px; color: var(--steel);
}

/* ---------- responsive ---------- */
@media (max-width: 900px){
  .hero .wrap{ grid-template-columns: 1fr; padding-top: 44px; }
  .hero-diagram{ order: -1; max-width: 320px; }
  .category-grid{ grid-template-columns: 1fr; }
  .about-grid{ grid-template-columns: 1fr; }
  .two-col{ grid-template-columns: 1fr; }
  .spec-strip .wrap{ grid-template-columns: repeat(2, 1fr); }
  .spec-item:nth-child(3){ border-left: none; padding-left: 0; }
  .dl-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap: 28px; }
  .eco-panel{ grid-template-columns: 1fr; }
  .eco-panel .eco-figures{ gap: 20px; flex-wrap: wrap; }
  .accessory-grid{ grid-template-columns: 1fr; }
  .main-nav{
    position: fixed; inset: 76px 0 auto 0;
    background: var(--ink); flex-direction: column; align-items: flex-start;
    padding: 20px 24px 28px; gap: 18px;
    border-bottom: 4px solid var(--yellow);
    transform: translateY(-120%);
    transition: transform .2s ease;
  }
  .main-nav.is-open{ transform: translateY(0); }
  .nav-toggle{ display: block; }
  .nav-cta{ margin-top: 6px; }
}

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; scroll-behavior: auto !important; }
}