:root {
    --primary: #0f172a; /* Çok koyu, asil bir lacivert/siyah */
    --primary-light: #1e293b;
    --bg-color: #ffffff; /* Ana arka plan bembeyaz */
    --secondary-bg: #f8fafc; /* Bölümler arası geçiş için çok hafif gri */
    --accent-gold: #b8860b; /* Beyazda okunabilen tok bir altın sarısı */
    --accent-turq: #0ea5e9; /* Beyaza yakışan profesyonel bir mavi/turkuaz */
    --text-dark: #334155;
    --text-light: #64748b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- NAVBAR (ÜST MENÜ) - BEYAZ TEMA --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: all 0.4s ease;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.navbar.scrolled {
    padding: 15px 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.98);
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}
.logo img {
    height: 40px;
    width: auto;
    object-fit: contain;
}
.logo span {
    color: var(--accent-gold);
    font-weight: 400;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}
.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    transition: color 0.3s ease;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--accent-gold);
}

/* --- SCROLL ANİMASYONLARI --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- HERO BÖLÜMÜ (Buzlu Beyaz Cam Efekti) --- */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}
.hero-video {
    position: absolute;
    top: 50%; left: 50%; min-width: 100%; min-height: 100%; width: auto; height: auto;
    transform: translate(-50%, -50%); z-index: -2; object-fit: cover;
}
.hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(255, 255, 255, 0.85); /* Beyaz buzlu cam */
    backdrop-filter: blur(8px);
    z-index: -1;
}
.hero-content {
    z-index: 1;
    color: var(--primary);
    max-width: 900px;
    padding: 0 20px;
}
.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 25px;
    letter-spacing: -1px;
}
.hero p {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 400;
    margin-bottom: 40px;
    color: var(--text-dark);
    line-height: 1.7;
}

/* BUTONLAR */
.btn-group { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.btn {
    padding: 18px 40px; font-size: 1.1rem; font-weight: 600;
    border-radius: 30px; text-decoration: none; transition: all 0.3s ease; cursor: pointer;
}
.btn-primary { background-color: var(--primary); color: white; box-shadow: 0 10px 30px rgba(15, 23, 42, 0.2); }
.btn-primary:hover { background-color: var(--accent-gold); color: white; transform: translateY(-3px); box-shadow: 0 10px 30px rgba(184, 134, 11, 0.3); }
.btn-outline { background-color: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background-color: var(--primary); color: white; transform: translateY(-3px); }

/* --- GÜVEN ŞERİDİ --- */
.trust-bar {
    background: white; border-bottom: 1px solid rgba(0,0,0,0.05); padding: 25px 0; position: relative; z-index: 10;
}
.trust-container {
    max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; padding: 0 20px; gap: 20px;
}
.trust-item { display: flex; align-items: center; gap: 10px; font-size: 0.95rem; font-weight: 700; color: var(--primary); }
.trust-item i { color: var(--accent-gold); font-size: 1.3rem; }
.legal-notice { width: 100%; text-align: center; font-size: 0.85rem; color: #dc2626; font-weight: 600; padding-top: 15px; border-top: 1px solid #f1f5f9; margin-top: 10px; }

/* --- ALT SAYFA HEADER --- */
.page-header { background: var(--secondary-bg); padding: 160px 20px 80px; text-align: center; color: var(--primary); border-bottom: 1px solid rgba(0,0,0,0.05); }
.page-header h1 { font-size: 3.5rem; margin-bottom: 15px; font-weight: 900; letter-spacing: -1px; }
.page-header p { color: var(--text-light); font-size: 1.2rem; max-width: 700px; margin: 0 auto; line-height: 1.6; }

/* --- GENEL BÖLÜMLER --- */
.heavy-section { padding: 100px 20px; }
.bg-light { background-color: var(--secondary-bg); }
.container { max-width: 1200px; margin: 0 auto; }

.section-header-left { text-align: left; max-width: 800px; margin-bottom: 60px; }
.section-header-left h2 { font-size: 3rem; font-weight: 800; color: var(--primary); line-height: 1.2; margin-bottom: 20px; letter-spacing: -1px; }
.section-header-left p { font-size: 1.2rem; color: var(--text-light); line-height: 1.8; }

.feature-box { display: flex; gap: 20px; margin-bottom: 40px; }
.feature-box i { font-size: 2.5rem; color: var(--accent-gold); flex-shrink: 0; }
.feature-box h4 { font-size: 1.3rem; color: var(--primary); margin-bottom: 10px; font-weight: 800; }
.feature-box p { color: var(--text-light); line-height: 1.6; }

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; }
.card { background: white; padding: 50px 30px; border-radius: 20px; text-align: center; transition: all 0.4s ease; border: 1px solid rgba(0,0,0,0.03); box-shadow: 0 10px 30px rgba(0,0,0,0.02); }
.card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }
.card i { font-size: 3rem; color: var(--accent-turq); margin-bottom: 25px; }
.card h3 { font-size: 1.4rem; margin-bottom: 15px; color: var(--primary); font-weight: 800; }
.card p { color: var(--text-light); line-height: 1.6; font-size: 1.05rem; }

/* --- FORMLAR --- */
.form-box { background: white; padding: 50px; border-radius: 20px; margin-bottom: 30px; box-shadow: 0 10px 40px rgba(0,0,0,0.03); border: 1px solid rgba(0,0,0,0.05); }
.form-group { margin-bottom: 20px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 18px; border: 1px solid #cbd5e1; border-radius: 10px; font-size: 1rem; outline: none; transition: border-color 0.3s ease; background: #f8fafc; color: var(--primary); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary); background: white; }
.submit-btn { width: 100%; padding: 20px; background: var(--primary); color: white; border: none; border-radius: 10px; font-size: 1.1rem; font-weight: 700; cursor: pointer; transition: background 0.3s ease; }
.submit-btn:hover { background: var(--accent-gold); }

/* --- FOOTER (Açık Gri Tema) --- */
footer { background: var(--secondary-bg); color: var(--text-dark); padding: 80px 20px 40px; margin-top: 50px; border-top: 1px solid rgba(0,0,0,0.05); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 50px; max-width: 1200px; margin: 0 auto; margin-bottom: 50px; }
.footer-col h4 { font-size: 1.2rem; margin-bottom: 20px; color: var(--primary); font-weight: 800; }
.footer-col p, .footer-col a { color: var(--text-light); margin-bottom: 10px; display: block; text-decoration: none; line-height: 1.6; font-weight: 500; }
.footer-col a:hover { color: var(--accent-gold); }
.footer-legal { border-top: 1px solid rgba(0,0,0,0.05); padding-top: 30px; text-align: center; max-width: 1200px; margin: 0 auto; }
.footer-legal p { color: #94a3b8; font-weight: 500; font-size: 0.85rem; margin-bottom: 15px; }