:root {
    --primary: #0b2c55;
    --accent: #d32f2f;
    --accent-hover: #b71c1c;
    --whatsapp: #25d366;
    --light-bg: #f4f6f9;
    --text-dark: #1a1a1a;
    --white: #fff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; color: var(--text-dark); line-height: 1.6; background: #fff; overflow-x: hidden; }
a { text-decoration: none; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.text-center { text-align: center; }
.section-padding { padding: 80px 0; }
.bg-light { background: var(--light-bg); }

/* --- 1. TOP BAR --- */
.top-bar {
    background: #05162b;
    color: #ddd;
    padding: 10px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.top-contact a { color: #ddd; margin-right: 15px; font-weight: 500; }
.location { margin-left: 10px; }

/* --- 2. NAVBAR --- */
.navbar {
    background: var(--white);
    height: 90px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.nav-wrapper { display: flex; justify-content: space-between; align-items: center; width: 100%; }

/* Logo */
.logo { display: flex; align-items: center; gap: 12px; color: var(--primary); }
.logo-img { height: 60px; width: auto; }
.logo-text span { display: block; font-weight: 900; font-size: 24px; line-height: 1; letter-spacing: -1px; }
.logo-text small { font-size: 11px; letter-spacing: 3px; color: var(--accent); font-weight: 700; }

/* Menü */
.nav-links { display: flex; gap: 40px; }
.nav-links a { 
    font-weight: 800; 
    color: var(--primary); 
    font-size: 16px;
    text-transform: uppercase; 
    padding: 10px 0;
    position: relative;
    letter-spacing: 0.5px;
}
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: 5px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }

/* Navbar Buton */
.nav-right { display: flex; align-items: center; gap: 15px; }
.btn-navbar {
    background: var(--primary);
    color: white;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 700;
    font-size: 14px;
    display: inline-block;
    border: 2px solid var(--primary);
    transition: all 0.3s ease;
    text-align: center;
}
.btn-navbar:hover { 
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}
.hamburger { display: none; font-size: 26px; cursor: pointer; color: var(--primary); }

/* --- 3. HERO --- */
.hero-section {
    position: relative;
    height: calc(100vh - 90px); 
    min-height: 600px;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}
.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11, 44, 85, 0.9) 0%, rgba(11, 44, 85, 0.6) 100%);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 850px;
}
.hero-badge {
    background: var(--accent);
    color: white;
    padding: 8px 25px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 25px;
    box-shadow: 0 5px 15px rgba(211, 47, 47, 0.4);
}
.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 25px;
    font-weight: 800;
}
.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 35px;
    opacity: 0.95;
    line-height: 1.6;
}
.highlight { color: #ff8a80; }
.hero-btns { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.btn {
    padding: 16px 35px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 15px;
    display: inline-block;
    cursor: pointer;
    text-align: center;
}
.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 10px 20px rgba(211, 47, 47, 0.3);
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-3px); }
.btn-whatsapp {
    background: var(--whatsapp);
    color: white;
}
.btn-whatsapp:hover { background: #1ebc57; transform: translateY(-3px); }

/* --- 4. HİZMETLER --- */
.stats-bar { background: var(--primary); padding: 40px 0; color: white; border-top: 4px solid var(--accent); }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; text-align: center; }
.stat-item i { font-size: 35px; color: var(--accent); margin-bottom: 15px; }
.stat-item div strong { display: block; font-size: 18px; margin-bottom: 5px; }

.section-header h2 { font-size: 2.5rem; color: var(--primary); margin-bottom: 15px; }
.section-header p { color: #666; max-width: 600px; margin: 0 auto; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-top: 50px; }
.service-card { 
    background: white; 
    padding: 40px 30px; 
    border-radius: 10px; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.05); 
    transition: 0.3s;
    border-bottom: 4px solid transparent;
    text-align: center;
}
.service-card:hover { transform: translateY(-10px); border-bottom-color: var(--accent); }
.service-card h3 { color: var(--primary); font-size: 1.3rem; margin: 15px 0; }
.service-card p { color: #666; font-size: 0.95rem; }
.icon-box { font-size: 45px; color: var(--accent); margin-bottom: 10px; }

.highlight-card { 
    border: 2px solid var(--accent); 
    background: #fffafa;
    position: relative;
}
.highlight-card::before {
    content: "Önerilen";
    position: absolute;
    top: 0;
    right: 0;
    background: var(--accent);
    color: white;
    font-size: 12px;
    padding: 4px 10px;
    border-bottom-left-radius: 10px;
    border-top-right-radius: 8px;
}

/* CTA */
.cta-section {
    background: var(--primary);
    color: white;
    padding: 60px 0;
    text-align: center;
}
.cta-content h2 { font-size: 2.2rem; margin-bottom: 10px; }
.phone-big { font-size: 2.5rem; font-weight: 800; color: white; display: inline-block; margin-top: 20px; }
.phone-big:hover { color: var(--accent); }

/* --- 5. FOOTER --- */
footer {
    background: #05162b;
    color: #b0b0b0;
    padding: 60px 0 20px;
    font-size: 14px;
}
footer .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}
footer h4 {
    color: white;
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}
footer h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: var(--accent);
}
footer ul li { margin-bottom: 10px; }
footer ul li a { color: #b0b0b0; }
footer ul li a:hover { color: var(--accent); padding-left: 5px; }
footer .social-links a {
    display: inline-block;
    width: 35px;
    height: 35px;
    background: rgba(255,255,255,0.1);
    color: white;
    text-align: center;
    line-height: 35px;
    border-radius: 50%;
    margin-right: 10px;
}
footer .social-links a:hover { background: var(--accent); }
.copyright {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* --- Responsive --- */
@media (max-width: 992px) {
    .navbar { height: 70px; }
    .logo-img { height: 45px; }
    .logo-text span { font-size: 20px; }
    
    .nav-links { 
        position: absolute; 
        top: 70px; 
        left: 0; 
        right: 0; 
        background: white; 
        flex-direction: column; 
        padding: 20px; 
        display: none; 
        box-shadow: 0 10px 20px rgba(0,0,0,0.1); 
        gap: 15px;
        text-align: center;
    }
    .nav-links.active { display: flex; }
    .hamburger { display: block; }
    .btn-navbar { display: none; }
    .hero-content h1 { font-size: 2rem; }
    .hero-content p { font-size: 1rem; }
    .stats-grid { grid-template-columns: 1fr; gap: 30px; }
    .phone-big { font-size: 1.8rem; }
}

/* --- MOBİL İÇİN SABİT BUTONLAR --- */
/* Varsayılan olarak GİZLE (Masaüstü için) */
.mobile-only {
    display: none;
}

/* Sadece Mobilde (992px altı) GÖSTER */
@media (max-width: 992px) {
    .mobile-only {
        display: flex; /* Görünür yap */
    }

    .float-btn {
        position: fixed;
        left: 20px;      /* Solda sabit */
        width: 60px;
        height: 60px;
        border-radius: 50%;
        align-items: center;
        justify-content: center;
        text-align: center;
        font-size: 28px;
        box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
        z-index: 9999;
        border: 2px solid white;
        color: white;
    }

    /* TELEFON BUTONU (En altta) */
    .float-btn.phone {
        bottom: 20px;
        background-color: var(--primary);
    }

    .float-btn:active {
        transform: scale(0.95);
    }
}