/* ===== GLOBAL STYLES (Genel Stiller) ===== */
:root {
    --bg-white: #ffffff;
    --bg-light-grey: #f8f9fa; /* Çok açık gri tonu */
    --text-primary: #333333; /* Siyah yerine daha yumuşak bir ana metin rengi */
    --text-headings: #111111; /* Güçlü, siyah başlıklar */
    --border-color: #dddddd; /* İnce kenarlıklar */
    --corporate-black: #222222; /* CTA (Button) rengi */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif; /* Okunaklı, kurumsal font */
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

h1, h2, h3, .logo {
    font-family: 'Montserrat', sans-serif; /* Güçlü başlık fontu */
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-headings);
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--corporate-black); /* Bağlantılar mavi değil, siyah tonunda */
    font-weight: 700;
}

a:hover {
    text-decoration: underline;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 5rem 0;
}

.bg-light-grey {
    background-color: var(--bg-light-grey);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

/* ===== HEADER (Gezinme Çubuğu) ===== */
header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
}

.logo {
    font-size: 1.5rem;
    color: var(--text-headings);
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* ===== HERO (Ana Karşılama Alanı) ===== */
#hero {
    padding: 6rem 0;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.hero-text {
    flex: 1;
}

.hero-image-wrapper {
    flex: 0 0 450px; /* Sabit genişlik, esneme/büzülme yok */
}

.hero-image {
    width: 100%;
    height: auto;
    max-width: 450px;
    object-fit: cover;
    border-radius: 8px; /* Kurumsal için hafif yuvarlama */
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border: 1px solid var(--border-color);
}

.hero-text .subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.hero-text .hero-bio {
    font-size: 1.1rem;
    color: #555; /* Ana metinden biraz daha açık */
    margin-bottom: 2rem;
}

/* ===== ABOUT (Hakkında) ===== */
.about-content {
    max-width: 1000px;
}
.about-flex {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}
.about-image {
    flex: 1;
}
.about-image img {
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}
.about-text {
    flex: 1;
}

/* ===== CAREER (Kariyer Kartları) ===== */
.career-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.03);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.07);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-headings);
}

/* ===== WORKS (Eserler Listesi) ===== */
.works-list {
    list-style: none;
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-white);
}

.works-list li {
    font-size: 1.1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.works-list li:last-child {
    border-bottom: none;
}

.works-list li strong {
    color: var(--text-headings);
    margin-right: 0.5rem;
}

/* ===== CONTACT & CTA Buttons ===== */
#contact {
    text-align: center;
}

.cta-button, .cta-button-secondary {
    display: inline-block;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    padding: 1rem 2.5rem;
    border-radius: 5px;
    margin-top: 1rem;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

/* Ana CTA Düğmesi (Siyah) */
.cta-button {
    background: var(--corporate-black);
    color: var(--bg-white);
}
.cta-button:hover {
    background: #555;
    color: var(--bg-white);
}

/* İkincil CTA Düğmesi (Siyah Çerçeve) */
.cta-button-secondary {
    background: transparent;
    color: var(--corporate-black);
    border: 2px solid var(--corporate-black);
}
.cta-button-secondary:hover {
    background: var(--corporate-black);
    color: var(--bg-white);
}

/* ===== FOOTER ===== */
footer {
    background: var(--bg-light-grey);
    color: #777;
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

footer p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

/* ===== RESPONSIVE (Mobil Uyumluluk) ===== */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column-reverse; /* Resmi üste al */
        text-align: center;
    }
    .hero-image-wrapper {
        flex: 0 0 auto; /* Esnekliği sıfırla */
        width: 80%;
        max-width: 400px; /* Maksimum boyutu küçült */
    }
    .about-flex {
        flex-direction: column;
    }
    .career-grid {
        grid-template-columns: 1fr; /* Kartları alt alta diz */
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }

    header nav {
        flex-direction: column;
    }
    .nav-links {
        margin-top: 1rem;
    }
    .nav-links li {
        margin: 0.5rem 1rem;
    }
}