/*
Theme Name: YK Baca ve Havalandirma
Theme URI: https://ykbaca.com.tr
Author: YK Baca ve Havalandirma Sistemleri
Description: YK Baca ve Havalandirma Sistemleri icin ozel hazirlanmis, tek sayfa tanitim temasi.
Version: 1.0
Requires at least: 5.0
Requires PHP: 7.4
Text Domain: ykbaca
*/

:root{
  --carbon:#14181d;
  --panel:#1e252c;
  --panel-2:#252d35;
  --spark:#ff6a1a;
  --spark-dim:#c9540f;
  --steel:#8b98a3;
  --steel-dim:#5b6670;
  --paper:#f2f4f5;
  --line:#333c44;
  --radius:2px;
  --display:'Oswald', sans-serif;
  --body:'Inter', sans-serif;
  --mono:'IBM Plex Mono', monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--carbon);
  color:var(--paper);
  font-family:var(--body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3{font-family:var(--display);text-transform:uppercase;letter-spacing:0.02em;margin:0;line-height:1.08;}
.eyebrow{
  font-family:var(--mono);
  font-size:0.72rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--spark);
  display:flex;align-items:center;gap:10px;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--spark);display:inline-block;}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px;}
section{position:relative;}

:focus-visible{outline:2px solid var(--spark);outline-offset:3px;}

.grid-bg{
  position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg, rgba(139,152,163,0.06) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, rgba(139,152,163,0.06) 0 1px, transparent 1px 40px);
  pointer-events:none;
}

/* ---------- HEADER ---------- */
header.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(20,24,29,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--display);font-size:1.05rem;letter-spacing:0.03em;text-transform:uppercase;}
.brand img.logo-mark{width:44px;height:44px;object-fit:contain;flex-shrink:0;}
.brand small{display:block;font-family:var(--mono);font-size:0.6rem;color:var(--steel);letter-spacing:0.12em;text-transform:none;}
nav.links{display:flex;gap:34px;}
nav.links a{font-size:0.86rem;font-weight:500;color:var(--steel);transition:color .2s;position:relative;}
nav.links a:hover{color:var(--paper);}
.nav-right{display:flex;align-items:center;gap:18px;}
.phone-chip{
  font-family:var(--mono);font-size:0.82rem;color:var(--paper);
  border:1px solid var(--line);padding:9px 16px;border-radius:var(--radius);
  display:flex;align-items:center;gap:8px;transition:border-color .2s;
}
.phone-chip:hover{border-color:var(--spark);}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;}
.burger span{width:22px;height:2px;background:var(--paper);}
.mobile-panel{display:none;}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--body);font-weight:600;font-size:0.92rem;
  padding:14px 26px;border-radius:var(--radius);
  border:1px solid transparent;cursor:pointer;transition:transform .15s, background .2s;
}
.btn-primary{background:var(--spark);color:var(--carbon);}
.btn-primary:hover{background:#ff7d38;transform:translateY(-1px);}
.btn-ghost{border-color:var(--line);color:var(--paper);}
.btn-ghost:hover{border-color:var(--steel);}

/* ---------- HERO ---------- */
.hero{padding:96px 0 100px;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:60px;align-items:center;position:relative;z-index:1;}
.hero h1{font-size:clamp(2.3rem, 4.2vw, 3.6rem);color:var(--paper);}
.hero h1 span{color:var(--spark);}
.hero p.lead{margin:26px 0 34px;color:var(--steel);font-size:1.05rem;max-width:520px;}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;}

.nav-cta{color:var(--spark) !important;font-weight:600;}

.hero-photos{
  display:grid;grid-template-columns:1.2fr 1fr;grid-template-rows:1fr 1fr;
  gap:10px;height:420px;
}
.photo-tile{position:relative;display:block;overflow:hidden;border:1px solid var(--line);}
.photo-tile.big{grid-row:1 / 3;}
.photo-tile img{width:100%;height:100%;object-fit:cover;filter:grayscale(15%);transition:transform .4s ease, filter .4s ease;}
.photo-tile:hover img{transform:scale(1.06);filter:grayscale(0%);}
.photo-cap{
  position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(transparent, rgba(20,24,29,0.9));
  color:var(--paper);font-family:var(--mono);font-size:0.68rem;letter-spacing:0.03em;
  padding:22px 12px 10px;
}
.hero-diagram{position:relative;}

/* ---------- KEŞİF HESAPLAYICI ---------- */
.calc-card{background:var(--panel);border:1px solid var(--line);padding:30px;border-radius:var(--radius);}
.calc-visual{
  height:150px;margin:-30px -30px 22px;position:relative;
  background:var(--carbon);border-bottom:1px solid var(--line);overflow:hidden;
}
.visual-item{position:absolute;inset:0;display:none;align-items:center;justify-content:center;}
.visual-item.active{display:flex;}
.visual-item svg{width:100%;height:100%;}
.calc-tabs{display:flex;gap:22px;margin-bottom:24px;border-bottom:1px solid var(--line);}
.calc-tab{
  background:none;border:none;color:var(--steel);font-family:var(--body);font-weight:600;
  font-size:0.88rem;padding:10px 2px;cursor:pointer;border-bottom:2px solid transparent;
  margin-bottom:-1px;transition:color .2s,border-color .2s;
}
.calc-tab.active{color:var(--spark);border-color:var(--spark);}
.calc-tab:hover{color:var(--paper);}
.calc-panel{display:none;flex-direction:column;gap:6px;}
.calc-panel.active{display:flex;}
.calc-label{font-family:var(--mono);font-size:0.68rem;color:var(--steel);letter-spacing:0.06em;text-transform:uppercase;margin:10px 0 2px;}
.calc-input,.calc-select{
  background:var(--carbon);border:1px solid var(--line);color:var(--paper);
  padding:12px 14px;border-radius:var(--radius);font-family:var(--body);font-size:0.94rem;width:100%;
}
.calc-input::placeholder{color:var(--steel-dim);}
.calc-input:focus,.calc-select:focus{outline:none;border-color:var(--spark);}
.calc-result{
  font-family:var(--mono);color:var(--steel);font-size:0.9rem;
  border:1px dashed var(--line);padding:13px 14px;border-radius:var(--radius);margin-top:12px;
}
.calc-result strong{color:var(--spark);font-size:1.1rem;}
.calc-note{font-family:var(--mono);font-size:0.68rem;color:var(--steel-dim);margin-top:4px;}

.material-group{display:flex;gap:6px;margin-bottom:2px;flex-wrap:wrap;}
.material-btn{
  flex:1;min-width:88px;background:var(--carbon);border:1px solid var(--line);color:var(--steel);
  font-family:var(--body);font-size:0.78rem;font-weight:500;padding:9px 6px;border-radius:var(--radius);
  cursor:pointer;text-align:center;transition:border-color .2s,color .2s,background .2s;
}
.material-btn:hover{border-color:var(--steel);color:var(--paper);}
.material-btn.active{border-color:var(--spark);color:var(--paper);background:var(--panel-2);}
.calc-submit{margin-top:18px;justify-content:center;width:100%;}
.dim-label{font-family:var(--mono);font-size:0.68rem;fill:var(--steel);}
.dim-line{stroke:var(--steel-dim);stroke-width:1;stroke-dasharray:3 3;}
.metal-line{stroke:var(--paper);stroke-width:1.6;fill:none;}
.accent-line{stroke:var(--spark);stroke-width:1.6;fill:none;}

/* ---------- SECTION HEAD ---------- */
.section-head{max-width:640px;margin-bottom:56px;}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);color:var(--paper);}
.section-head p{color:var(--steel);margin-top:14px;font-size:0.98rem;}

/* ---------- SERVICES ---------- */
.services{padding:110px 0;background:var(--panel);}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.service-card{background:var(--panel);padding:34px 30px;transition:background .25s;}
.service-card:hover{background:var(--panel-2);}
.service-icon{width:40px;height:40px;margin-bottom:22px;}
.service-icon path,.service-icon circle,.service-icon rect,.service-icon line{stroke:var(--spark);stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.service-card h3{font-size:1.02rem;color:var(--paper);margin-bottom:12px;letter-spacing:0.01em;}
.service-card p{color:var(--steel);font-size:0.9rem;margin:0 0 18px;}
.spec-tag{font-family:var(--mono);font-size:0.66rem;color:var(--spark);letter-spacing:0.06em;border:1px solid var(--spark-dim);padding:4px 9px;display:inline-block;border-radius:var(--radius);}

/* ---------- WHY US ---------- */
.why{padding:100px 0;}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);}
.why-item{padding:32px 24px 0;border-right:1px solid var(--line);}
.why-item:last-child{border-right:none;}
.why-num{font-family:var(--mono);color:var(--spark);font-size:0.75rem;margin-bottom:14px;display:block;}
.why-item h3{font-size:0.98rem;color:var(--paper);margin-bottom:10px;font-family:var(--body);text-transform:none;letter-spacing:0;font-weight:600;}
.why-item p{color:var(--steel);font-size:0.88rem;}

/* ---------- GALLERY ---------- */
.gallery{padding:110px 0;background:var(--panel);}
.gallery-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;}
.gallery-grid a{display:block;overflow:hidden;aspect-ratio:3/4;border:1px solid var(--line);}
.gallery-grid img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease, filter .35s ease;filter:grayscale(20%);}
.gallery-grid a:hover img{transform:scale(1.06);filter:grayscale(0%);}

/* ---------- SERVICE AREA ---------- */
.area{padding:110px 0;}
.area-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:70px;align-items:center;}
.radar{position:relative;width:100%;aspect-ratio:1;max-width:420px;}
.radar svg{width:100%;height:100%;}
.radar-ring{fill:none;stroke:var(--line);stroke-width:1;}
.radar-ring.active{stroke:var(--spark-dim);stroke-dasharray:4 4;}
.radar-dot{fill:var(--spark);}
.radar-label{font-family:var(--mono);font-size:0.62rem;fill:var(--steel);letter-spacing:0.05em;}
.ilce-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.ilce-chip{
  font-family:var(--mono);font-size:0.78rem;color:var(--steel);
  border:1px solid var(--line);padding:8px 14px;border-radius:var(--radius);
  transition:border-color .2s, color .2s;
}
.ilce-chip:hover{border-color:var(--spark);color:var(--paper);}
.area-note{color:var(--spark);font-family:var(--mono);font-size:0.8rem;margin-top:22px;letter-spacing:0.03em;}

/* ---------- ABOUT ---------- */
.about{padding:110px 0;background:var(--panel);}
.about-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:70px;}
.about p{color:var(--steel);font-size:1rem;margin-bottom:18px;max-width:520px;}
.spec-sheet{border:1px solid var(--line);}
.spec-row{display:flex;justify-content:space-between;padding:18px 24px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:0.84rem;}
.spec-row:last-child{border-bottom:none;}
.spec-row span:first-child{color:var(--steel);}
.spec-row span:last-child{color:var(--paper);}

/* ---------- CONTACT ---------- */
.contact{padding:110px 0;}
.contact-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:50px;}
.contact-card{background:var(--carbon);padding:34px 28px;}
.contact-card .label{font-family:var(--mono);font-size:0.68rem;color:var(--steel);letter-spacing:0.1em;text-transform:uppercase;display:block;margin-bottom:14px;}
.contact-card .value{font-family:var(--display);font-size:1.3rem;color:var(--paper);text-transform:none;letter-spacing:0;display:block;margin-bottom:18px;}
.contact-card a.action{color:var(--spark);font-size:0.88rem;font-weight:600;}
.contact-card a.action:hover{text-decoration:underline;}

/* ---------- FOOTER ---------- */
footer.site-footer{border-top:1px solid var(--line);padding:44px 0;background:var(--panel);}
.footer-grid{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:18px;}
footer.site-footer .brand small{color:var(--steel-dim);}
.footer-links{display:flex;gap:26px;}
.footer-links a{color:var(--steel);font-size:0.85rem;}
.footer-links a:hover{color:var(--paper);}
.copy{color:var(--steel-dim);font-size:0.78rem;font-family:var(--mono);}

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

/* ---------- RESPONSIVE ---------- */
@media (max-width:960px){
  nav.links{display:none;}
  .burger{display:flex;}
  .mobile-panel.open{display:flex;flex-direction:column;padding:20px 28px 28px;border-top:1px solid var(--line);gap:18px;background:var(--carbon);}
  .mobile-panel a{color:var(--steel);font-size:0.95rem;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-diagram{order:-1;max-width:340px;margin:0 auto 20px;}
  .hero-photos{height:320px;max-width:100%;}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .why-item{border-bottom:1px solid var(--line);padding-bottom:28px;}
  .area-grid,.about-grid{grid-template-columns:1fr;gap:40px;}
  .contact-grid{grid-template-columns:1fr;}
  .phone-chip{display:none;}
  .gallery-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:560px){
  .service-grid{grid-template-columns:1fr;}
  .why-grid{grid-template-columns:1fr;}
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
}