/* style.css */
:root {
    --accent: #e21e26; --dark: #0f172a; --light-bg: #f8fafc;
    --white: #ffffff; --text-soft: #64748b; --transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Plus Jakarta Sans', sans-serif; background: var(--white); color: var(--dark); line-height: 1.6; overflow-x: hidden; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; transition: var(--transition); }
ul { list-style: none; }

/* Header & Navigation */
.header-main { position: fixed; top: 0; width: 100%; z-index: 1000; padding: 15px 0; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(15px); border-bottom: 1px solid rgba(0,0,0,0.05); }
.header-inner { max-width: 1400px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 0 40px; }
.logo img { height: 40px; width: auto; }
.nav-desktop ul { display: flex; gap: 30px; }
.nav-desktop a { color: var(--dark); font-weight: 700; font-size: 14px; letter-spacing: -0.2px; }
.nav-desktop a:hover, .nav-desktop a.active { color: var(--accent); }

/* Mobil Menü Butonu (Sadece Mobilde Çıkar) */
.menu-toggle { display: none; font-size: 28px; cursor: pointer; color: var(--dark); }

/* Butonlar & Tipografi */
.btn-main { background: var(--accent); color: var(--white) !important; padding: 14px 35px; border-radius: 10px; font-weight: 800; display: inline-block; box-shadow: 0 8px 15px rgba(226, 30, 38, 0.2); border: none; cursor: pointer; }
.btn-main:hover { transform: translateY(-3px); box-shadow: 0 12px 25px rgba(226, 30, 38, 0.3); }
.btn-outline { border: 2px solid var(--dark); color: var(--dark) !important; padding: 12px 30px; border-radius: 10px; font-weight: 800; display: inline-block; }
.btn-outline:hover { background: var(--dark); color: var(--white) !important; }
.eyebrow { color: var(--accent); font-weight: 800; font-size: 11px; letter-spacing: 2px; display: block; margin-bottom: 8px; text-transform: uppercase; }
.text-grad { background: linear-gradient(90deg, var(--accent), #ff5e62); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* Grid & Banner Sistemleri */
.page-banner { padding: 110px 0 50px; background: var(--light-bg); text-align: center; }
.page-banner h1 { font-size: 2.5rem; font-weight: 800; letter-spacing: -1px; margin-top: 5px; }
.section-padding { padding: 60px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* Görsel Kutuları */
.img-box { width: 100%; height: 420px; background: var(--white); border-radius: 20px; display: flex; align-items: center; justify-content: center; padding: 30px; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.03); }
.img-box img { max-width: 100%; max-height: 100%; object-fit: contain; }
.hero-img-box { height: 65vh; display: flex; justify-content: center; align-items: center; }
.hero-img-box img { max-height: 100%; width: auto; object-fit: contain; filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1)); }
.card-item { background: var(--light-bg); border-radius: 20px; padding: 30px; text-align: center; transition: var(--transition); }
.card-item:hover { transform: translateY(-10px); background: var(--white); box-shadow: 0 20px 40px rgba(0,0,0,0.05); }

/* Footer */
.footer-main { background: var(--dark); color: var(--white); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 25px; text-align: center; font-size: 13px; opacity: 0.5; }

/* MOBİL UYUMLULUK */
@media (max-width: 992px) {
    .menu-toggle { display: block; } /* Hamburger menüyü göster */
    .nav-desktop {
        display: none; position: absolute; top: 70px; left: 0; width: 100%;
        background: var(--white); padding: 20px; box-shadow: 0 10px 20px rgba(0,0,0,0.1); text-align: center;
    }
    .nav-desktop.active { display: block; } /* Aktif olduğunda göster */
    .nav-desktop ul { flex-direction: column; gap: 15px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr !important; gap: 30px; text-align: center; }
    .page-banner h1 { font-size: 2rem; }
    .hero-img-box { height: 40vh; margin-top: 30px; }
}