:root {
    --bg-dark: #0f172a; /* Çok koyu lacivert */
    --primary: #1e293b; /* Lacivert */
    --gold: #d4af37; /* Altın Rengi */
    --gold-hover: #b4942b;
    --text-main: #334155;
    --text-light: #94a3b8;
    --white: #ffffff;
    --light-gray: #f8fafc;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Manrope', sans-serif;
    color: var(--text-main);
    background-color: var(--white);
    line-height: 1.7;
}

h1, h2, h3 {
    font-family: 'Playfair Display', serif; /* Serif font ile premium hava */
    color: var(--primary);
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 25px; }

/* HEADER */
.site-header {
    padding: 25px 0;
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.header-container { display: flex; justify-content: space-between; align-items: center; }

.logo a {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -1px;
    color: var(--primary);
}
.logo span { color: var(--gold); }

.main-nav ul { display: flex; gap: 35px; }
.main-nav a { font-size: 15px; font-weight: 500; color: var(--primary); }
.main-nav a:hover { color: var(--gold); }

.btn-premium {
    background: var(--primary);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 4px; /* Keskin köşeler kurumsallık katar */
    font-size: 14px;
    letter-spacing: 0.5px;
}
.btn-premium:hover { background: var(--gold); color: var(--primary); }

/* HERO SECTION */
.hero {
    position: relative;
    padding: 140px 0;
    background: var(--bg-dark);
    color: var(--white);
    overflow: hidden;
}

.hero-content { position: relative; z-index: 2; text-align: center; }

.hero .subtitle {
    display: block;
    color: var(--gold);
    font-size: 14px;
    letter-spacing: 3px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero h1 {
    font-size: 56px;
    line-height: 1.2;
    color: var(--white);
    margin-bottom: 25px;
}

.hero h1 span { font-style: italic; color: var(--gold); }
.hero p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-buttons { display: flex; justify-content: center; gap: 20px; }

.btn {
    padding: 15px 35px;
    font-weight: 600;
    border-radius: 2px;
    display: inline-block;
}

.btn-gold { background: var(--gold); color: var(--primary); }
.btn-gold:hover { background: var(--white); }

.btn-outline-white { border: 1px solid rgba(255,255,255,0.3); color: var(--white); }
.btn-outline-white:hover { border-color: var(--gold); color: var(--gold); }

/* VISION SECTION */
.vision { padding: 100px 0; }
.vision-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.vision h2 { font-size: 42px; margin-bottom: 25px; line-height: 1.2; }
.vision p { margin-bottom: 20px; color: var(--text-main); }
.stats { display: flex; gap: 40px; margin-top: 30px; border-top: 1px solid #eee; padding-top: 30px; }
.stat-item { display: flex; flex-direction: column; }
.stat-item .number { font-size: 36px; font-weight: 700; color: var(--gold); font-family: 'Playfair Display'; }
.stat-item .label { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; }

.vision-image img { width: 100%; border-radius: 4px; box-shadow: 20px 20px 0px var(--light-gray); }

/* SERVICES */
.services { background: var(--light-gray); padding: 100px 0; }
.section-title { text-align: center; font-size: 38px; margin-bottom: 60px; }

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-top: 3px solid var(--gold); /* Üstte ince altın çizgi */
    transition: 0.3s;
}
.service-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.05); }
.service-card h3 { font-size: 22px; margin-bottom: 15px; font-family: 'Manrope'; font-weight: 700; }
.service-card p { font-size: 15px; color: var(--text-main); }

/* PORTFOLIO GRID */
.portfolio { padding: 100px 0; }
.section-desc { text-align: center; max-width: 600px; margin: -40px auto 60px; color: var(--text-main); }

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/5; /* Dikey dikdörtgen */
    background: #eee;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-item:hover img { transform: scale(1.05); }

/* CONTACT CTA */
.contact-cta { background: var(--bg-dark); color: var(--white); padding: 100px 0; text-align: center; }
.contact-box h2 { color: var(--white); font-size: 42px; margin-bottom: 20px; }
.contact-box p { color: var(--text-light); margin-bottom: 40px; }
.contact-buttons { display: flex; justify-content: center; gap: 20px; margin-bottom: 30px; }
.phone-display { font-size: 24px; font-family: 'Playfair Display'; color: var(--gold); }

/* FOOTER */
.site-footer { background: #0b1120; color: #64748b; padding: 60px 0 30px; font-size: 14px; }
.footer-top { display: flex; justify-content: space-between; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.footer-info strong { color: var(--white); display: block; margin-bottom: 15px; font-size: 18px; }
.copyright { text-align: center; padding-top: 30px; }

/* MOBILE */
.mobile-toggle { display: none; }
@media (max-width: 768px) {
    .main-nav, .header-cta { display: none; }
    .mobile-toggle { display: block; cursor: pointer; }
    .mobile-toggle span { display: block; width: 30px; height: 2px; background: var(--primary); margin: 6px 0; }
    
    .hero h1 { font-size: 36px; }
    .vision-grid { grid-template-columns: 1fr; }
    .stats { justify-content: center; }
    .contact-buttons { flex-direction: column; }
}