/* ============ hikvision.net.tr ============
   Palet: #0C1117 grafit · #E60012 Hikvision kırmızı · #F5F6F8 açık zemin
   Tipografi: Barlow Condensed (başlık) + Inter (metin)
============================================= */
:root {
    --grafit: #0C1117;
    --grafit-2: #161D26;
    --kirmizi: #E60012;
    --kirmizi-koyu: #B8000E;
    --acik: #F5F6F8;
    --metin: #1A2330;
    --soluk: #66707D;
    --cizgi: #E3E6EA;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--metin); background: #fff; line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
h1, h2, h3, .display { font-family: 'Barlow Condensed', sans-serif; text-transform: uppercase; letter-spacing: .02em; line-height: 1.1; }
.konteyner { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---- Üst bar ---- */
.ust-bar { background: var(--grafit); color: #9AA5B1; font-size: 13px; }
.ust-bar-ic { display: flex; justify-content: space-between; align-items: center; padding: 7px 20px; }
.ust-bar a { color: #C9D2DC; }
.ust-bar a:hover { color: #fff; }
.ust-bar .ayirici { margin: 0 10px; opacity: .4; }
.ust-bar span:first-child { color: var(--kirmizi); font-weight: 600; }

/* ---- Header ---- */
.site-header { background: #fff; border-bottom: 3px solid var(--kirmizi); position: sticky; top: 0; z-index: 100; }
.header-ic { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; }
.logo { font-family: 'Barlow Condensed', sans-serif; font-size: 30px; font-weight: 700; letter-spacing: .01em; }
.logo-hik { color: var(--kirmizi); }
.logo-vision { color: var(--grafit); }
.logo-tr { font-size: 15px; color: var(--soluk); font-weight: 500; margin-left: 3px; }
.ana-menu { display: flex; align-items: center; gap: 26px; font-weight: 500; font-size: 15px; }
.ana-menu > a:hover, .dropdown-tetik:hover { color: var(--kirmizi); }
.menu-cta { background: var(--kirmizi); color: #fff !important; padding: 9px 22px; font-family: 'Barlow Condensed', sans-serif; text-transform: uppercase; font-size: 17px; font-weight: 600; letter-spacing: .04em; }
.menu-cta:hover { background: var(--kirmizi-koyu); }
.menu-btn { display: none; background: none; border: none; font-size: 26px; cursor: pointer; color: var(--grafit); }
.dropdown { position: relative; }
.dropdown-menu { display: none; position: absolute; top: 100%; left: -14px; background: #fff; border: 1px solid var(--cizgi); border-top: 3px solid var(--kirmizi); min-width: 230px; padding: 8px 0; box-shadow: 0 12px 30px rgba(12,17,23,.12); }
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a { display: block; padding: 9px 18px; font-size: 14px; }
.dropdown-menu a:hover { background: var(--acik); color: var(--kirmizi); }

/* ---- Hero: vizör imzası ---- */
.hero { background: var(--grafit); color: #fff; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 44px 44px; }
.hero-ic { position: relative; padding: 90px 20px 100px; max-width: 900px; margin: 0 auto; }
.vizor { position: relative; padding: 44px 48px; }
.vizor::before, .vizor::after, .vizor .kose::before, .vizor .kose::after { content: ""; position: absolute; width: 34px; height: 34px; border: 2px solid var(--kirmizi); }
.vizor::before { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.vizor::after { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.vizor .kose::before { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.vizor .kose::after { bottom: 0; right: 0; border-left: 0; border-top: 0; }
.rec { display: inline-flex; align-items: center; gap: 8px; font-family: 'Barlow Condensed', sans-serif; font-size: 15px; letter-spacing: .28em; color: #9AA5B1; margin-bottom: 18px; }
.rec i { width: 10px; height: 10px; border-radius: 50%; background: var(--kirmizi); animation: rec-yanip 1.4s infinite; }
@keyframes rec-yanip { 0%,100% { opacity: 1 } 50% { opacity: .15 } }
@media (prefers-reduced-motion: reduce) { .rec i { animation: none } }
.hero h1 { font-size: clamp(38px, 6vw, 66px); font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--kirmizi); }
.hero p { color: #B7C0CA; max-width: 560px; margin-top: 16px; font-size: 17px; }
.hero-btnlar { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 13px 30px; font-family: 'Barlow Condensed', sans-serif; text-transform: uppercase; font-size: 18px; font-weight: 600; letter-spacing: .05em; transition: background .15s; }
.btn-kirmizi { background: var(--kirmizi); color: #fff; }
.btn-kirmizi:hover { background: var(--kirmizi-koyu); }
.btn-cerceve { border: 1.5px solid rgba(255,255,255,.35); color: #fff; }
.btn-cerceve:hover { border-color: #fff; }
.btn-koyu { background: var(--grafit); color: #fff; }
.btn-koyu:hover { background: var(--grafit-2); }

/* ---- Bölümler ---- */
.bolum { padding: 70px 0; }
.bolum-acik { background: var(--acik); }
.bolum-koyu { background: var(--grafit); color: #fff; }
.bolum-baslik { margin-bottom: 38px; }
.bolum-baslik .etiket { font-family: 'Barlow Condensed', sans-serif; text-transform: uppercase; letter-spacing: .25em; font-size: 14px; color: var(--kirmizi); font-weight: 600; display: block; margin-bottom: 6px; }
.bolum-baslik h2 { font-size: clamp(28px, 4vw, 42px); }
.bolum-koyu .bolum-baslik h2 { color: #fff; }

/* ---- Kategori kartları ---- */
.izgara { display: grid; gap: 22px; }
.izgara-3 { grid-template-columns: repeat(3, 1fr); }
.izgara-4 { grid-template-columns: repeat(4, 1fr); }
.kat-kart { background: #fff; border: 1px solid var(--cizgi); padding: 26px; position: relative; transition: border-color .15s, transform .15s; }
.kat-kart:hover { border-color: var(--kirmizi); transform: translateY(-3px); }
.kat-kart h3 { font-size: 22px; margin-bottom: 8px; }
.kat-kart p { font-size: 14px; color: var(--soluk); margin-bottom: 12px; }
.kat-kart .sayi { font-size: 13px; color: var(--kirmizi); font-weight: 600; }
.kat-kart::before { content: ""; position: absolute; top: 0; left: 0; width: 26px; height: 26px; border-top: 2px solid var(--kirmizi); border-left: 2px solid var(--kirmizi); opacity: 0; transition: opacity .15s; }
.kat-kart:hover::before { opacity: 1; }

/* ---- Ürün kartları ---- */
.urun-kart { background: #fff; border: 1px solid var(--cizgi); display: flex; flex-direction: column; transition: border-color .15s, box-shadow .15s; }
.urun-kart:hover { border-color: var(--kirmizi); box-shadow: 0 10px 26px rgba(12,17,23,.08); }
.urun-resim { aspect-ratio: 4/3; background: var(--acik); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.urun-resim img { width: 100%; height: 100%; object-fit: contain; padding: 14px; }
.urun-resim .yok { font-family: 'Barlow Condensed', sans-serif; color: #B9C1CA; font-size: 15px; letter-spacing: .15em; text-transform: uppercase; }
.urun-icerik { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.urun-icerik .model { font-size: 12px; color: var(--kirmizi); font-weight: 600; letter-spacing: .08em; }
.urun-icerik h3 { font-size: 20px; margin: 4px 0 8px; }
.urun-icerik p { font-size: 14px; color: var(--soluk); flex: 1; }
.urun-icerik .link { margin-top: 14px; font-family: 'Barlow Condensed', sans-serif; text-transform: uppercase; letter-spacing: .06em; font-weight: 600; color: var(--grafit); font-size: 16px; }
.urun-kart:hover .link { color: var(--kirmizi); }

/* ---- Hizmet şeridi ---- */
.hizmet-izgara { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.1); }
.hizmet { background: var(--grafit); padding: 30px 24px; }
.hizmet .no { font-family: 'Barlow Condensed', sans-serif; color: var(--kirmizi); font-size: 15px; letter-spacing: .2em; }
.hizmet h3 { color: #fff; font-size: 21px; margin: 8px 0; }
.hizmet p { color: #9AA5B1; font-size: 14px; }

/* ---- Breadcrumb ---- */
.yolharitasi { background: var(--acik); border-bottom: 1px solid var(--cizgi); font-size: 13px; color: var(--soluk); }
.yolharitasi .konteyner { padding: 12px 20px; }
.yolharitasi a:hover { color: var(--kirmizi); }

/* ---- Ürün detay ---- */
.detay-izgara { display: grid; grid-template-columns: 1fr 1.1fr; gap: 44px; align-items: start; }
.detay-resim { border: 1px solid var(--cizgi); background: var(--acik); aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; }
.detay-resim img { max-height: 100%; object-fit: contain; padding: 24px; }
.detay-model { color: var(--kirmizi); font-weight: 600; letter-spacing: .1em; font-size: 14px; }
.detay-baslik { font-size: clamp(28px, 4vw, 40px); margin: 6px 0 14px; }
.ozellik-listesi { margin: 22px 0; border-top: 1px solid var(--cizgi); }
.ozellik-listesi li { list-style: none; padding: 10px 0 10px 24px; border-bottom: 1px solid var(--cizgi); font-size: 15px; position: relative; }
.ozellik-listesi li::before { content: "▸"; color: var(--kirmizi); position: absolute; left: 4px; }
.detay-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }

/* ---- Formlar ---- */
.form-izgara { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-alan { display: flex; flex-direction: column; gap: 6px; }
.form-alan.tam { grid-column: 1 / -1; }
.form-alan label { font-size: 13px; font-weight: 600; color: var(--metin); }
.form-alan input, .form-alan textarea, .form-alan select {
    padding: 11px 14px; border: 1px solid var(--cizgi); font: inherit; font-size: 15px; background: #fff; }
.form-alan input:focus, .form-alan textarea:focus, .form-alan select:focus { outline: 2px solid var(--kirmizi); outline-offset: -1px; border-color: var(--kirmizi); }
.uyari { padding: 14px 18px; margin-bottom: 20px; font-size: 14px; }
.uyari-ok { background: #E8F6EC; color: #146A2E; border: 1px solid #BFE6CC; }
.uyari-hata { background: #FCE9EA; color: #9B0F1B; border: 1px solid #F3C2C6; }

/* ---- İletişim ---- */
.iletisim-izgara { display: grid; grid-template-columns: 1.4fr 1fr; gap: 44px; }
.iletisim-kutu { background: var(--grafit); color: #fff; padding: 34px 30px; }
.iletisim-kutu h3 { color: #fff; font-size: 24px; margin-bottom: 18px; }
.iletisim-kutu p { color: #B7C0CA; font-size: 15px; margin-bottom: 12px; }
.iletisim-kutu strong { color: #fff; display: block; font-size: 13px; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 2px; }

/* ---- Footer ---- */
.site-footer { background: var(--grafit); color: #9AA5B1; margin-top: 80px; }
.footer-izgara { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 34px; padding: 56px 20px 40px; font-size: 14px; }
.footer-logo { font-size: 24px; margin-bottom: 12px; }
.footer-logo .logo-vision { color: #fff; }
.site-footer h4 { color: #fff; font-family: 'Barlow Condensed', sans-serif; text-transform: uppercase; letter-spacing: .08em; font-size: 17px; margin-bottom: 14px; }
.site-footer a { display: block; padding: 3px 0; }
.site-footer a:hover { color: #fff; }
.footer-alt { border-top: 1px solid rgba(255,255,255,.08); font-size: 12.5px; }
.footer-alt .konteyner { display: flex; justify-content: space-between; gap: 20px; padding: 16px 20px; flex-wrap: wrap; }
.footer-not { opacity: .6; }

/* ---- WhatsApp ---- */
.wa-btn { position: fixed; right: 22px; bottom: 22px; width: 54px; height: 54px; border-radius: 50%; background: #25D366; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 22px rgba(0,0,0,.25); z-index: 90; }
.wa-btn:hover { transform: scale(1.06); }

/* ---- Duyarlılık ---- */
@media (max-width: 960px) {
    .izgara-4 { grid-template-columns: repeat(2, 1fr); }
    .izgara-3 { grid-template-columns: repeat(2, 1fr); }
    .hizmet-izgara { grid-template-columns: repeat(2, 1fr); }
    .detay-izgara, .iletisim-izgara { grid-template-columns: 1fr; }
    .footer-izgara { grid-template-columns: 1fr 1fr; }
    .menu-btn { display: block; }
    .ana-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; gap: 0; border-bottom: 3px solid var(--kirmizi); box-shadow: 0 16px 30px rgba(12,17,23,.15); }
    body.menu-acik .ana-menu { display: flex; }
    .ana-menu > a, .dropdown-tetik { padding: 14px 22px; border-top: 1px solid var(--cizgi); display: block; }
    .dropdown-menu { display: block; position: static; border: none; box-shadow: none; padding: 0 0 8px; }
    .dropdown-menu a { padding: 9px 36px; color: var(--soluk); }
    .menu-cta { margin: 12px 22px 16px; text-align: center; }
    .ust-bar-ic { flex-direction: column; gap: 3px; text-align: center; }
}
@media (max-width: 560px) {
    .izgara-4, .izgara-3, .hizmet-izgara, .form-izgara, .footer-izgara { grid-template-columns: 1fr; }
    .form-alan.tam { grid-column: auto; }
    .hero-ic { padding: 56px 16px 64px; }
    .vizor { padding: 30px 22px; }
}