/* CSS Sıfırlama ve Global Ayarlar */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

:root {
    --primary-color: #013a2c;     /* Kurumsal Koyu Yeşil */
    --secondary-color: #b5961e;   /* Kurumsal Altın */
    --text-dark: #111827;        /* Yüksek Okunurluk Sağlayan Koyu Karbon */
    --text-muted: #4b5563;       /* İkincil Metin Grisi */
    --light-bg: #f9fafb;         /* Açık Gri Bölüm Arka Planı */
    --white: #ffffff;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Sabit Üst Navigasyon Çubuğu */
.navbar {
    background-color: var(--white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 0;
}

.nav-logo {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--secondary-color);
    text-decoration: none;
    letter-spacing: 0.5px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease-in-out;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

/* İki Sütunlu Hero (Karşılama) Tasarımı */
.hero-section {
    background-color: var(--primary-color);
    padding: 11rem 0 7rem 0;
    color: var(--white);
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero-logo-side {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo-img {
    max-width: 100%;
    height: auto;
    max-height: 260px;
    object-fit: contain;
    mix-blend-mode: lighten;
}

.hero-text-side {
    flex: 1.3;
}

.hero-text-side h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 1.2rem;
    color: var(--white);
    letter-spacing: 0.5px;
}

.hero-text-side p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 300;
}

/* Seksiyon Yapıları */
.section {
    padding: 5.5rem 0;
}

.bg-white {
    background-color: var(--white);
}

.bg-light {
    background-color: var(--light-bg);
}

.section-title {
    text-align: center;
    font-size: 2.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4rem;
}

/* Altın Renkli Bölüm Başlığı */
.section-title.gold-title {
    color: var(--secondary-color);
    letter-spacing: 1px;
}

.section-text {
    max-width: 850px;
    margin: 0 auto;
    text-align: justify;
    font-size: 1.05rem;
    color: var(--text-muted);
}

.text-center {
    text-align: center;
}

/* Faaliyet Alanları Kart Izgarası (Grid Mimarisi) */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 2.5rem;
}

.card {
    background-color: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 6px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    border-left: 5px solid var(--secondary-color);
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease-in-out;
}

.card:hover {
    transform: translateY(-4px);
}

.card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 1.2rem;
}

.card address {
    font-style: normal;
    font-size: 0.95rem;
    color: var(--text-dark); /* Adres ve telefonlar için kesin kontrast */
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.address-text {
    margin-bottom: 0.4rem;
    color: var(--text-dark);
}

.contact-num a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.2s ease;
}

.contact-num a:hover {
    color: var(--secondary-color);
}

/* İletişim Metinleri */
.contact-info p {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.email-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.email-link a:hover {
    color: var(--secondary-color);
}

/* Footer Düzeni */
.footer {
    background-color: #021a15;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    padding: 2.5rem 0;
    font-size: 0.9rem;
}

/* Duyarlılık (Responsive) Kapsam Modifikasyonları */
@media (max-width: 968px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
        gap: 2.5rem;
    }

    .hero-text-side h1 {
        font-size: 2.4rem;
    }

    .hero-logo-img {
        max-height: 200px;
    }
}

@media (max-width: 640px) {
    .nav-container {
        flex-direction: column;
        gap: 0.8rem;
        padding: 1rem 0;
    }

    .nav-links {
        gap: 1.2rem;
    }

    .section {
        padding: 4rem 0;
    }

    .section-title {
        font-size: 1.75rem;
        margin-bottom: 2.5rem;
    }
}