/* =========================================================
   KARSU ECZANE POŞETLERİ — stil
   Renkler broşürden alınmıştır: lacivert / kırmızı / beyaz
   ========================================================= */

:root{
  --lacivert:#16265f;
  --lacivert-koyu:#101c47;
  /* --blok: koyu temada da lacivert kalan zeminler */
  --blok:#16265f;
  --blok-koyu:#101c47;
  --kirmizi:#e2121a;
  --kirmizi-koyu:#b70e15;
  --beyaz:#ffffff;
  --gri:#f4f6fb;
  --metin:#22293d;
  --soluk:#5b6480;
  --wp:#25d366;
  --kap:1180px;
  --radius:14px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:76px}  /* sabit üst barın altında kalmasın */
body{
  margin:0;
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--metin);
  background:var(--beyaz);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}

.kap{width:100%;max-width:var(--kap);margin:0 auto;padding:0 20px}

h1,h2,h3,.fk-fiyat,.fk-serit,.marka-yazi{
  font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  font-style:italic;
  font-weight:800;
  letter-spacing:.5px;
  line-height:1.05;
  margin:0;
}

/* ---------- ÜST BAR ---------- */
.ust-bar{
  position:sticky;top:0;z-index:50;
  background:var(--beyaz);
  border-bottom:3px solid var(--kirmizi);
  box-shadow:0 2px 14px rgba(16,28,71,.08);
}
.ust-ic{display:flex;align-items:center;gap:24px;height:68px}
.marka{display:flex;align-items:center;gap:10px}
.marka img{height:44px;width:auto}
.marka-yazi{display:flex;flex-direction:column;line-height:1}
.marka-yazi b{font-size:24px;color:var(--lacivert-koyu);font-weight:800}
.marka-yazi i{font-size:13px;color:var(--kirmizi);letter-spacing:1.4px;font-weight:700}

.menu{margin-left:auto;display:flex;gap:26px}
.menu a{
  font-weight:600;font-size:15px;color:var(--lacivert);
  padding:6px 0;border-bottom:2px solid transparent;transition:.15s;
}
.menu a:hover{color:var(--kirmizi);border-color:var(--kirmizi)}

.tel-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--kirmizi);color:#fff;font-weight:700;font-size:15px;
  padding:10px 16px;border-radius:999px;white-space:nowrap;transition:.15s;
}
.tel-btn:hover{background:var(--kirmizi-koyu)}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--blok) 0%,var(--blok-koyu) 100%);
  color:#fff;padding:64px 0 72px;
}
.hero::before{
  content:"";position:absolute;right:-14%;top:-40%;
  width:70%;height:200%;
  background:var(--kirmizi);opacity:.9;
  transform:rotate(14deg);
}
.hero::after{
  content:"";position:absolute;right:-14%;top:-40%;
  width:70%;height:200%;
  background:rgba(255,255,255,.10);
  transform:rotate(14deg) translateX(-60px);
}
.hero-ic{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-ust{
  display:inline-block;margin:0 0 14px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.hero h1{font-size:clamp(40px,6vw,68px);text-transform:uppercase}
.hero h1 span{color:#ffd3d5}
.hero-metin{max-width:520px;margin:18px 0 26px;font-size:17px;color:#e6eaf7}
.hero-metin b{color:#fff}
.hero-btnlar{display:flex;gap:12px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:700;font-size:16px;padding:14px 24px;border-radius:999px;transition:.15s;
}
.btn-wp{background:var(--wp);color:#08331a}
.btn-wp:hover{filter:brightness(1.07)}
.btn-cerceve{border:2px solid rgba(255,255,255,.7);color:#fff}
.btn-cerceve:hover{background:#fff;color:var(--blok)}
.btn-beyaz{background:#fff;color:var(--blok)}
.btn-beyaz:hover{background:#ffe9ea;color:var(--kirmizi-koyu)}

/* fiyat kartı */
.fiyat-kart{
  background:#fff;color:var(--lacivert);
  border-radius:var(--radius);
  border:3px solid var(--kirmizi);
  padding:26px 24px;text-align:center;
  box-shadow:0 22px 44px rgba(0,0,0,.28);
}
.fk-ust{font-weight:700;font-size:14px;letter-spacing:1.4px;color:var(--lacivert);text-transform:uppercase}
.fk-fiyat{font-size:60px;color:var(--kirmizi);margin:4px 0 10px}
.fk-alt{font-size:14px;color:var(--soluk);line-height:1.45}
.fk-serit{
  margin-top:14px;background:var(--blok);color:#fff;
  padding:12px 10px;border-radius:10px;font-size:26px;
}

/* ---------- AVANTAJ ---------- */
.avantaj{background:var(--gri);border-bottom:1px solid #e3e8f4}
.avantaj-ic{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:26px 20px}
.av{padding-left:14px;border-left:4px solid var(--kirmizi)}
.av b{display:block;color:var(--lacivert);font-size:16px}
.av span{font-size:14px;color:var(--soluk)}

/* ---------- BÖLÜM ---------- */
.bolum{padding:70px 0}
.baslik{text-align:center;margin-bottom:38px}
.baslik h2{
  font-size:clamp(30px,4.4vw,46px);color:var(--lacivert);text-transform:uppercase;
  display:inline-block;padding-bottom:10px;border-bottom:4px solid var(--kirmizi);
}
.baslik p{margin:14px 0 0;color:var(--soluk);font-size:16px}

/* ---------- ÜRÜN KARTLARI ---------- */
.urun-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.urun{
  position:relative;background:#fff;border-radius:var(--radius);
  border:1px solid #e2e7f3;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .18s, box-shadow .18s, border-color .18s;
}
.urun:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(16,38,95,.13);border-color:var(--kirmizi)}
.rozet{
  position:absolute;top:14px;left:14px;z-index:2;
  background:var(--kirmizi);color:#fff;font-size:12px;font-weight:700;
  padding:5px 11px;border-radius:999px;letter-spacing:.3px;
}
.urun-gorsel{
  background:var(--gri);padding:22px;
  display:flex;align-items:center;justify-content:center;
  border-bottom:3px solid var(--blok);
}
.urun-gorsel img{height:220px;width:auto;object-fit:contain;mix-blend-mode:multiply}
.urun-govde{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.urun-govde h3{font-size:26px;color:var(--lacivert);text-transform:uppercase}
.urun-tip{margin:4px 0 12px;font-size:13px;font-weight:700;color:var(--kirmizi);letter-spacing:.4px;text-transform:uppercase}
.urun-aciklama{margin:0 0 8px;font-size:15px;color:var(--metin)}
.urun-adet{margin:0 0 16px;font-size:14px;color:var(--soluk)}
.urun-fiyat{
  margin-top:auto;display:flex;align-items:baseline;gap:8px;
  padding-top:14px;border-top:1px dashed #d7deef;
}
.urun-fiyat span{font-size:13px;color:var(--soluk)}
.urun-fiyat b{font-size:26px;color:var(--kirmizi);font-family:"Barlow Condensed",Arial,sans-serif;font-style:italic}
.urun-btn{
  margin-top:14px;text-align:center;background:var(--blok);color:#fff;
  font-weight:700;padding:12px;border-radius:999px;transition:.15s;
}
.urun-btn:hover{background:var(--kirmizi)}

.grid-not{
  margin:34px auto 0;max-width:840px;text-align:center;
  background:var(--gri);border:1px dashed var(--lacivert);
  padding:16px 20px;border-radius:12px;color:var(--lacivert);font-size:16px;
}

/* ---------- FİYAT BANDI ---------- */
.fiyat-band{background:var(--blok);color:#fff;padding:56px 0}
.fb-ic{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.fb-sol h2{font-size:38px;text-transform:uppercase}
.fb-sol p{margin:12px 0 0;color:#dde3f5;font-size:17px;max-width:520px}
.fb-sol b{color:#fff}
.fb-sag{display:flex;align-items:center;justify-content:center;gap:16px}
.fb-kutu{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.25);
  border-radius:12px;padding:18px 24px;text-align:center;min-width:140px;
}
.fb-kutu span{display:block;font-size:13px;color:#c9d2ec;letter-spacing:.5px}
.fb-kutu b{font-family:"Barlow Condensed",Arial,sans-serif;font-style:italic;font-size:34px}
.fb-kutu.eski b{color:#ffb9bc;text-decoration:line-through;text-decoration-color:rgba(255,255,255,.6)}
.fb-kutu.yeni{background:var(--kirmizi);border-color:var(--kirmizi)}
.fb-ok{font-size:26px;color:#ffb9bc}

/* ---------- NEDEN ---------- */
.neden-metin{
  max-width:860px;margin:0 auto;text-align:center;font-size:19px;color:var(--metin);
}
.neden-metin b{color:var(--lacivert)}

/* ---------- İLETİŞİM ---------- */
.iletisim{
  background:var(--kirmizi);color:#fff;padding:52px 0;
}
.il-ic{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.iletisim h2{font-size:38px;text-transform:uppercase}
.iletisim p{margin:8px 0 0;color:#ffe3e4;font-size:16px}
.il-btnlar{display:flex;gap:12px;flex-wrap:wrap}

footer{background:var(--blok-koyu);color:#aab4d4;padding:20px 0;font-size:14px}
.footer-ic{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* ---------- SABİT WHATSAPP ---------- */
.wp-float{
  position:fixed;right:20px;bottom:20px;z-index:60;
  width:58px;height:58px;border-radius:50%;
  background:var(--wp);color:#08331a;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px rgba(0,0,0,.28);transition:.15s;
}
.wp-float:hover{transform:scale(1.06)}

/* ---------- MOBİL MENÜ DÜĞMESİ ---------- */
.menu-btn{
  display:none;flex:0 0 auto;order:9;
  align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;cursor:pointer;
  background:transparent;border:2px solid var(--lacivert);color:var(--lacivert);
  z-index:80;transition:.15s;
}
.menu-btn:hover{border-color:var(--kirmizi);color:var(--kirmizi)}
.menu-btn .kapat{display:none}
body.menu-acik .menu-btn .cizgi{display:none}
body.menu-acik .menu-btn .kapat{display:block}
.menu-ortu{display:none}

/* ---------- RESPONSIVE ---------- */
@media(max-width:980px){
  .hero-ic{grid-template-columns:1fr;gap:34px}
  .fb-ic{grid-template-columns:1fr}
  .urun-grid{grid-template-columns:repeat(2,1fr)}
  .avantaj-ic{grid-template-columns:repeat(2,1fr)}

  /* menü, sağdan açılan yan panele dönüşür */
  .menu-btn{display:inline-flex}
  .menu{
    position:fixed;top:0;right:0;bottom:0;
    width:min(78vw,300px);
    margin-left:0;flex-direction:column;gap:0;
    background:var(--beyaz);
    padding:84px 24px 24px;
    box-shadow:-12px 0 34px rgba(0,0,0,.28);
    transform:translateX(100%);
    transition:transform .22s ease;
    z-index:70;
  }
  .menu a{
    font-size:19px;padding:16px 0;border-bottom:1px solid rgba(128,140,180,.28);
  }
  .menu a:hover{border-color:var(--kirmizi)}
  .menu-ortu{
    display:block;position:fixed;inset:0;z-index:65;background:rgba(6,10,26,.5);
    opacity:0;pointer-events:none;transition:opacity .22s ease;
  }
  body.menu-acik{overflow:hidden}
  body.menu-acik .menu{transform:none}
  body.menu-acik .menu-ortu{opacity:1;pointer-events:auto}
}
@media(max-width:620px){
  .ust-ic{gap:12px}
  .marka-yazi i{white-space:nowrap}
  .hero{padding:44px 0 54px}
  .hero::before,.hero::after{display:none}
  .urun-grid{grid-template-columns:1fr}
  .marka-yazi b{font-size:20px}
  .marka-yazi i{font-size:11px}
  .tel-btn span{display:none}
  .fk-fiyat{font-size:48px}
  .fb-sag{flex-wrap:wrap}
  .il-ic{flex-direction:column;align-items:flex-start}
}

/* ---------- TEMA DÜĞMESİ / KOYU TEMA ---------- */
.tema-btn{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;cursor:pointer;
  background:transparent;border:2px solid var(--lacivert);color:var(--lacivert);
  transition:.15s;
}
.tema-btn:hover{border-color:var(--kirmizi);color:var(--kirmizi)}
.tema-btn .ay{display:none}
[data-tema="koyu"] .tema-btn .gunes{display:none}
[data-tema="koyu"] .tema-btn .ay{display:block}

[data-tema="koyu"]{
  --lacivert:#8fa4e8;          /* koyu zeminde okunur mavi */
  --lacivert-koyu:#e6e9f5;     /* sadece marka yazısında kullanılıyor */
  --beyaz:#12172a;
  --gri:#1b2138;
  --metin:#e6e9f5;
  --soluk:#9aa3c0;
  color-scheme:dark;
}
[data-tema="koyu"] .ust-bar{box-shadow:0 2px 14px rgba(0,0,0,.5)}
[data-tema="koyu"] .avantaj{border-bottom-color:#232a45}
[data-tema="koyu"] .urun{background:var(--gri);border-color:#2a3150}
[data-tema="koyu"] .urun-gorsel{background:#fff}  /* mix-blend-mode:multiply beyaz zemin ister */
[data-tema="koyu"] .urun-fiyat{border-top-color:#394060}
[data-tema="koyu"] .fiyat-kart{background:var(--gri);color:var(--metin)}