/* UPNET INDUSTRIAL CORPORATE THEME */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* CİDDİ & OTURMUŞ RENK PALETİ */
    --primary: #0e7490;        /* Koyu Petrol Turkuazı (Ciddi) */
    --primary-hover: #155e75;  /* Daha koyu ton */
    --accent: #06b6d4;         /* Canlı Turkuaz (Sadece ikonlar için) */
    
    --text-dark: #111827;      /* Simsiyah değil, koyu antrasit */
    --text-gray: #4b5563;      /* Okunaklı gri */
    --bg-light: #f3f4f6;       /* Kurumsal gri zemin */
    --bg-white: #ffffff;
    --border: #e5e7eb;
}

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

body {
    font-family: 'Inter', sans-serif; /* Tek ve net font */
    color: var(--text-gray);
    background-color: var(--bg-white);
    line-height: 1.6;
}

h1, h2, h3, h4 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
a { text-decoration: none; transition: 0.2s; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* -- BUTONLAR -- */
.btn {
    display: inline-block; padding: 12px 28px; border-radius: 4px; /* Yuvarlak değil, hafif köşeli */
    font-weight: 600; font-size: 0.95rem; cursor: pointer; text-align: center;
}
.btn-primary { background-color: var(--primary); color: white; border: 1px solid var(--primary); }
.btn-primary:hover { background-color: var(--primary-hover); }

.btn-outline { background-color: white; color: var(--text-dark); border: 1px solid #d1d5db; }
.btn-outline:hover { background-color: var(--bg-light); border-color: var(--text-dark); }

/* -- HEADER -- */
header {
    background: white; border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 999;
}
.header-inner { height: 100px; display: flex; justify-content: space-between; align-items: center; }
.logo {     margin-top:-15px;
            display: flex;
            align-items: center;
            text-decoration: none;
        }

.nav-menu { display: flex; gap: 30px; }
.nav-menu a { color: var(--text-dark); font-weight: 500; font-size: 0.95rem; }
.nav-menu a:hover { color: var(--primary); }

/* -- HERO SECTION (Klasik) -- */
.hero {
    background-color: var(--bg-light);
    padding: 100px 0;
    border-bottom: 1px solid var(--border);
}
.hero-content { max-width: 800px; margin: 0 auto; text-align: center; }
.hero h1 { font-size: 3rem; max-width: 800px; margin-bottom: 20px; letter-spacing: -1px; }
.hero p { font-size: 1.2rem; margin-bottom: 30px; max-width: 800px; margin-left: auto; margin-right: auto; }
.hero-tag {
    font-size: 0.85rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 1px;
    margin-bottom: 15px; display: block;
}

/* -- STATS BAR -- */
.stats-bar { padding: 40px 0; border-bottom: 1px solid var(--border); background: white; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-item strong { display: block; font-size: 2rem; color: var(--primary); font-weight: 700; }
.stat-item span { font-size: 0.9rem; color: var(--text-gray); }

/* -- CONTENT BLOCKS (Resim/Metin Blokları) -- */
.section { padding: 80px 0; border-bottom: 1px solid var(--border); }
.block-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.block-text h2 { font-size: 2.25rem; margin-bottom: 20px; }
.block-text p { margin-bottom: 20px; font-size: 1.05rem; }
.block-list li { margin-bottom: 12px; display: flex; align-items: center; gap: 10px; color: var(--text-dark); font-weight: 500; }
.block-list i { color: var(--primary); }

.block-img {
    background: var(--bg-light); border: 1px solid var(--border); border-radius: 8px;
    display: flex; align-items: center; justify-content: center; color: #9ca3af;
}

/* -- SERVICES GRID -- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 50px; }
.service-card {
    background: white; border: 1px solid var(--border); padding: 35px; border-radius: 6px; transition: 0.2s;
}
.service-card:hover { border-color: var(--primary); transform: translateY(-3px); }
.icon-circle {
    width: 60px; height: 60px; background: #ecfeff; color: var(--primary);
    border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 20px;
}
.service-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.service-card p { font-size: 0.95rem; }

/* -- FOOTER -- */
footer { background: #111827; color: #d1d5db; padding: 80px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 60px; }
.footer-logo { color: white; font-size: 20px; font-weight: 800; display: block; margin-bottom: 20px; }
.footer-col h4 { color: white; margin-bottom: 20px; font-size: 1rem; }
.footer-col ul li { margin-bottom: 10px; font-size: 0.9rem; }
.footer-col a { color: #9ca3af; }
.footer-col a:hover { color: white; }
.copyright { border-top: 1px solid #374151; padding-top: 30px; text-align: center; font-size: 0.9rem; color: #6b7280; }

@media (max-width: 900px) {
    .block-grid, .services-grid, .stats-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.2rem; }
    .nav-menu { display: none; }
    .header-inner { justify-content: space-between; }
}