:root { 
    --bg-main: #f4f7f6;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.4);
    --emerald-dark: #064e3b; 
    --emerald-light: #10b981;
    --navy-dark: #0f172a;
    --text-muted: #64748b;
    --shadow-soft: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    --shadow-hover: 0 12px 40px 0 rgba(16, 185, 129, 0.15);
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', system-ui, sans-serif; }
body { background-color: var(--bg-main); color: var(--navy-dark); line-height: 1.6; }
a { text-decoration: none; color: inherit; transition: var(--transition); }

/* Glass Header */
.ultra-header { background: var(--glass-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--glass-border); position: sticky; top: 0; z-index: 1000; padding: 15px 5%; display: flex; justify-content: space-between; align-items: center; box-shadow: var(--shadow-soft); }
.brand-logo { font-size: 26px; font-weight: 900; color: var(--navy-dark); letter-spacing: -1px; display: flex; flex-direction: column; line-height: 1.1; }
.brand-logo span { color: var(--emerald-light); font-size: 14px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; }
.glass-nav ul { list-style: none; display: flex; gap: 35px; }
.glass-nav a { font-weight: 600; font-size: 15px; text-transform: uppercase; letter-spacing: 0.5px; position: relative; padding-bottom: 5px; }
.glass-nav a::after { content: ''; position: absolute; width: 0; height: 2px; bottom: 0; left: 0; background-color: var(--emerald-light); transition: var(--transition); }
.glass-nav a:hover::after { width: 100%; }
.header-contact { background: var(--emerald-dark); color: #fff; padding: 12px 25px; border-radius: 30px; font-weight: 700; box-shadow: 0 4px 15px rgba(6, 78, 59, 0.3); }
.header-contact:hover { background: var(--navy-dark); transform: translateY(-2px); }

/* Hero Split Layout */
.hero-split { display: flex; min-height: 70vh; align-items: center; padding: 0 5%; gap: 50px; background: linear-gradient(135deg, #ffffff 0%, #e0f2fe 100%); position: relative; overflow: hidden; }
.hero-text { flex: 1; z-index: 2; }
.hero-text h1 { font-size: 4vw; font-weight: 900; line-height: 1.1; margin-bottom: 25px; color: var(--navy-dark); }
.hero-text h1 span { color: var(--emerald-light); }
.hero-text p { font-size: 18px; color: var(--text-muted); margin-bottom: 40px; max-width: 90%; }
.hero-visual { flex: 1; position: relative; height: 500px; background: url('hali-bg.jpg') center/cover; border-radius: 40px; box-shadow: var(--shadow-hover); }
.btn-action { display: inline-block; background: var(--emerald-light); color: #fff; padding: 18px 40px; border-radius: 50px; font-size: 18px; font-weight: 700; box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4); }
.btn-action:hover { transform: scale(1.05); background: var(--emerald-dark); }

/* Bento Grid (Modern 2026 Trendi) */
.bento-section { padding: 100px 5%; max-width: 1400px; margin: 0 auto; }
.section-head { margin-bottom: 60px; }
.section-head h2 { font-size: 36px; font-weight: 900; letter-spacing: -1px; }
.section-head p { color: var(--emerald-light); font-weight: 700; text-transform: uppercase; letter-spacing: 2px; font-size: 14px; }
.bento-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 250px; gap: 25px; }
.bento-item { background: var(--glass-bg); backdrop-filter: blur(10px); border: 1px solid var(--glass-border); border-radius: 24px; padding: 35px; box-shadow: var(--shadow-soft); transition: var(--transition); display: flex; flex-direction: column; justify-content: center; }
.bento-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--emerald-light); }
.bento-large { grid-column: span 2; grid-row: span 2; background: var(--navy-dark); color: #fff; justify-content: flex-end; position: relative; overflow: hidden; }
.bento-wide { grid-column: span 2; }
.bento-icon { font-size: 40px; margin-bottom: 20px; }
.bento-item h3 { font-size: 22px; margin-bottom: 10px; font-weight: 800; }
.bento-large h3 { font-size: 32px; color: var(--emerald-light); z-index: 2; }
.bento-large p { color: #cbd5e1; font-size: 18px; z-index: 2; }

/* Elit Footer */
.premium-footer { background: var(--navy-dark); color: #f8fafc; padding: 80px 5% 30px; border-top: 5px solid var(--emerald-light); border-radius: 40px 40px 0 0; }
.footer-wrap { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
.footer-brand h2 { font-size: 28px; font-weight: 900; margin-bottom: 20px; }
.footer-brand p { color: #94a3b8; max-width: 400px; }
.footer-links h4 { font-size: 18px; margin-bottom: 25px; color: var(--emerald-light); letter-spacing: 1px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 15px; }
.footer-links a { color: #cbd5e1; }
.footer-links a:hover { color: #fff; padding-left: 5px; }
.footer-base { text-align: center; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; color: #64748b; font-size: 14px; }

/* İç Sayfa ve Formlar */
.inner-hero { background: var(--navy-dark); padding: 100px 5% 60px; border-radius: 0 0 40px 40px; text-align: center; color: #fff; margin-bottom: 60px; }
.inner-hero h1 { font-size: 42px; font-weight: 900; color: var(--emerald-light); }
.pro-content { max-width: 1000px; margin: 0 auto 100px; font-size: 18px; color: #334155; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.glass-form { background: var(--white); padding: 50px; border-radius: 24px; box-shadow: var(--shadow-soft); border: 1px solid #e2e8f0; }
.glass-form input, .glass-form textarea { width: 100%; padding: 18px; margin-bottom: 20px; border: 1px solid #cbd5e1; border-radius: 12px; background: var(--bg-main); font-size: 16px; outline: none; transition: var(--transition); }
.glass-form input:focus, .glass-form textarea:focus { border-color: var(--emerald-light); box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1); background: #fff; }
.glass-form button { background: var(--navy-dark); color: #fff; width: 100%; padding: 20px; border: none; border-radius: 12px; font-size: 18px; font-weight: 800; cursor: pointer; transition: var(--transition); }
.glass-form button:hover { background: var(--emerald-light); }
.map-box { border-radius: 24px; overflow: hidden; height: 100%; min-height: 400px; box-shadow: var(--shadow-soft); }
.map-box iframe { width: 100%; height: 100%; border: none; }