:root {
    --primary: #0B192C;     
    --accent: #1E3E62;      
    --text-dark: #000000;
    --text-main: #1C1C1C;
    --text-muted: #555555;
    --bg-light: #F9FAFB;
    --white: #FFFFFF;
    --border-color: #E5E7EB;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.6;
    letter-spacing: -0.011em;
}

header {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.7rem 2rem;
}

.logo-link {
    display: flex;
    align-items: center;
    line-height: 0;
}

.logo-img {
    height: 72px;
    width: auto;
    display: block;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.lang-selector {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.85rem;
    font-weight: 600;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 4px;
    transition: color 0.2s ease;
}

.lang-btn.active, .lang-btn:hover {
    color: var(--primary);
    font-weight: 700;
}

.lang-divider {
    color: #D1D5DB;
}

.hamburger-btn {
    background: none;
    border: none;
    cursor: pointer;
    width: 28px;
    height: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    z-index: 1001;
    padding: 0;
}

.hamburger-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger-btn.is-active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.hamburger-btn.is-active span:nth-child(2) {
    transform: translateY(-9px) rotate(-45deg);
}

.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--primary);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.overlay-menu {
    list-style: none;
    text-align: center;
}

.overlay-menu li {
    margin: 1.5rem 0;
}

.overlay-menu a {
    color: var(--white);
    text-decoration: none;
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    transition: opacity 0.2s;
}

.overlay-menu a:hover {
    opacity: 0.6;
}

.hero {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 7rem 2rem 6rem;
    text-align: center;
}

.hero-subtitle {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 1rem;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary);
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.2;
    letter-spacing: -0.03em;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

.section-block {
    margin-bottom: 5rem;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.content-box {
    background: var(--white);
    padding: 3rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.content-box p {
    font-size: 1.05rem;
    color: var(--text-main);
    margin-bottom: 1.2rem;
}

.content-box p:last-child {
    margin-bottom: 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.04);
}

.product-tag {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: #F0F4F8;
    padding: 4px 10px;
    display: inline-block;
    align-self: flex-start;
    margin-bottom: 1rem;
}

.product-card h3 {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.product-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--white);
    padding: 2.2rem 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    position: relative;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.service-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
}

.service-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    opacity: 0.3;
    display: block;
    margin-bottom: 0.5rem;
}

.service-card h3 {
    font-size: 1.15rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(340px, 100%), 1fr));
    gap: 2rem;
    margin-bottom: 5rem;
}

.grid-2 h3 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.value-card {
    background: var(--white);
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.value-card h4 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.value-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.map-wrapper {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 2rem;
    background: var(--white);
    overflow: hidden;
}

.map-wrapper iframe {
    display: block;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.contact-card {
    background: var(--white);
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.contact-card h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.contact-card p, .contact-card a {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
}

/* Footer */
footer {
    background-color: var(--primary);
    color: var(--white);
    padding: 4rem 2rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-logo {
    height: 48px;
    width: auto;
    background: var(--white);
    padding: 10px 16px;
    border-radius: 8px;
    display: block;
}

.footer-container p {
    color: #9CA3AF;
    font-size: 0.9rem;
    margin: 0;
}

.legal-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    gap: 0.8rem;
    margin-left: auto;
}

.legal-links a {
    color: #D1D5DB;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.legal-links a:hover {
    color: var(--white);
}

.copyright {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    font-size: 0.85rem;
    color: #9CA3AF;
}

/* Modal Stilleri */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-content {
    background-color: var(--white);
    padding: 3rem;
    border-radius: 8px;
    max-width: 700px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
}

.close-btn {
    position: absolute;
    right: 1.5rem;
    top: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal h2 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.modal-body h4 {
    margin-top: 1.2rem;
    margin-bottom: 0.4rem;
    color: var(--primary);
}

.modal-body p {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 1rem;
}

/* Responsive Düzenlemeler */
@media (max-width: 768px) {
    .nav-container {
        padding: 0.55rem 1.25rem;
    }
    .logo-img {
        height: 56px;
    }
    .hero {
        padding: 5rem 1.5rem 4rem;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .container {
        padding: 3rem 1.25rem;
    }
    .content-box {
        padding: 1.8rem;
    }
    .overlay-menu a {
        font-size: 1.6rem;
    }
    .products-grid,
    .services-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .footer-container {
        align-items: stretch;
    }
    .footer-brand {
        flex-wrap: wrap;
    }
    .legal-links {
        width: 100%;
    }
}