/* Style System for Mustafa Demirel One-Page Website */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --renk-ana: #0b0f19;          /* Koyu Arkaplan */
    --renk-kart: #151c2c;         /* Kart Arkaplanı */
    --renk-marka: #0a4c3e;        /* Logodaki Koyu Yeşil */
    --renk-marka-rgb: 10, 76, 62;
    --renk-turkuaz: #0fa383;      /* Vurgu Yeşili/Teal */
    --renk-metin: #94a3b8;        /* Gri Açıklama Metni */
    --renk-baslik: #ffffff;       /* Beyaz Başlıklar */
    --renk-yazisiz: #64748b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--renk-ana);
    color: var(--renk-metin);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Container */
.kapsayici {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigasyon */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.header-kapsayici {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 85px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: transform 0.3s;
}

.logo-link:hover {
    transform: scale(1.02);
}

.logo-gorsel {
    height: 50px;
    width: 38px;
    object-fit: cover;
    border-radius: 50%;
    background-color: #ffffff;
}

.logo-metin {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--renk-baslik);
    letter-spacing: 1px;
}

.logo-metin span {
    color: var(--renk-turkuaz);
}

nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-link {
    color: var(--renk-metin);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--renk-turkuaz);
}

.header-cta {
    background-color: var(--renk-turkuaz);
    color: #ffffff;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(15, 163, 131, 0.3);
    transition: all 0.3s;
}

.header-cta:hover {
    background-color: #0d8a6e;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 163, 131, 0.5);
}

.mobil-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--renk-baslik);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 180px 0 100px 0;
    background: radial-gradient(circle at top right, rgba(15, 163, 131, 0.12) 0%, transparent 60%);
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
}

.hero-sol h1 {
    color: var(--renk-baslik);
    font-size: 3.4rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-sol h1 span {
    color: var(--renk-turkuaz);
}

.hero-sol p {
    font-size: 1.15rem;
    color: var(--renk-metin);
    margin-bottom: 35px;
    max-width: 600px;
}

.hero-butonlar {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
}

.btn-turkuaz {
    background-color: var(--renk-turkuaz);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(15, 163, 131, 0.3);
}

.btn-turkuaz:hover {
    background-color: #0d8a6e;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 163, 131, 0.5);
}

.btn-gri {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--renk-baslik);
}

.btn-gri:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    transform: translateY(-2px);
}

.hero-sag {
    text-align: center;
    position: relative;
}

.hero-gorsel-kapsayici {
    position: relative;
    display: inline-block;
    padding: 20px;
}

.hero-gorsel-kapsayici::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 30px;
    border: 2px dashed rgba(15, 163, 131, 0.2);
    animation: rotasyon 20s infinite linear;
}

@keyframes rotasyon {
    to { transform: rotate(360deg); }
}

.hero-logo-gorsel {
    width: 220px;
    height: 310px;
    object-fit: cover;
    border-radius: 50%;
    background-color: #ffffff;
    filter: drop-shadow(0 15px 30px rgba(10, 76, 62, 0.3));
}

/* Bölüm Başlığı */
.bolum-basligi {
    text-align: center;
    margin-bottom: 60px;
}

.bolum-basligi h2 {
    color: var(--renk-baslik);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.bolum-basligi p {
    color: var(--renk-metin);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Hizmetler Section */
.hizmetler {
    padding: 100px 0;
    background-color: var(--renk-ana);
}

.hizmet-kartlari {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.hizmet-kart {
    background-color: var(--renk-kart);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 35px;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 280px;
}

.hizmet-kart:hover {
    transform: translateY(-8px);
    border-color: var(--renk-turkuaz);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.hizmet-kart i {
    font-size: 2.5rem;
    color: var(--renk-turkuaz);
    margin-bottom: 20px;
}

.hizmet-kart h3 {
    color: var(--renk-baslik);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.hizmet-kart p {
    font-size: 0.92rem;
    color: var(--renk-metin);
}

/* Hakkımızda Section */
.hakkimizda {
    padding: 100px 0;
    background-color: #0c1220;
    border-top: 1px solid rgba(255,255,255,0.03);
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.hakkimizda-icerik {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hakkimizda-metin h3 {
    color: var(--renk-baslik);
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hakkimizda-metin p {
    margin-bottom: 20px;
    font-size: 1rem;
}

.degerler-liste {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.deger-oge {
    background-color: var(--renk-kart);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.deger-oge i {
    color: var(--renk-turkuaz);
    font-size: 1.3rem;
}

.deger-oge span {
    color: var(--renk-baslik);
    font-weight: 500;
    font-size: 0.95rem;
}

/* Sektörler Section */
.sektorler {
    padding: 100px 0;
}

.sektor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}

.sektor-kart {
    background-color: var(--renk-kart);
    border: 1px solid rgba(255,255,255,0.03);
    border-radius: 16px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s;
}

.sektor-kart:hover {
    border-color: var(--renk-turkuaz);
    background-color: rgba(15, 163, 131, 0.05);
    transform: translateY(-5px);
}

.sektor-kart i {
    font-size: 2.2rem;
    color: var(--renk-turkuaz);
    margin-bottom: 15px;
    display: inline-block;
}

.sektor-kart h3 {
    color: var(--renk-baslik);
    font-size: 1.05rem;
    font-weight: 500;
}

/* İletişim Section */
.iletisim {
    padding: 100px 0;
    background-color: #0c1220;
}

.iletisim-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.iletisim-bilgileri {
    width: 100%;
}

.iletisim-liste {
    list-style: none;
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    margin: 0 auto 35px auto;
}

.iletisim-oge {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    align-items: flex-start;
    text-align: left;
}

.iletisim-oge i {
    color: var(--renk-turkuaz);
    font-size: 1.3rem;
    margin-top: 4px;
}

.iletisim-oge strong {
    display: block;
    color: var(--renk-baslik);
    font-size: 0.9rem;
    margin-bottom: 3px;
}

.iletisim-oge span {
    font-size: 0.98rem;
}

.form-grubu {
    margin-bottom: 20px;
}

.form-grubu label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--renk-baslik);
    margin-bottom: 8px;
}

.form-denetimi {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    outline: none;
    transition: all 0.3s ease;
}

.form-denetimi:focus {
    background-color: rgba(255, 255, 255, 0.06);
    border-color: var(--renk-turkuaz);
    box-shadow: 0 0 0 3px rgba(15, 163, 131, 0.15);
}

textarea.form-denetimi {
    min-height: 120px;
    resize: vertical;
}

.form-satir {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.iletisim-formu-kart {
    background-color: var(--renk-kart);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

/* Footer */
footer {
    padding: 50px 0 30px 0;
    background-color: var(--renk-ana);
    border-top: 1px solid rgba(255,255,255,0.03);
}

.footer-icerik {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.footer-sol {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-linkler {
    display: flex;
    gap: 20px;
}

.footer-linkler a {
    color: var(--renk-metin);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.footer-linkler a:hover {
    color: var(--renk-turkuaz);
}

.footer-alt {
    border-top: 1px solid rgba(255,255,255,0.03);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--renk-yazisiz);
}

.sosyal-medya a {
    color: var(--renk-yazisiz);
    font-size: 1.2rem;
    margin-left: 15px;
    transition: color 0.3s;
}

.sosyal-medya a:hover {
    color: var(--renk-turkuaz);
}

/* Mobil Uyum */
@media (max-width: 991px) {
    .hero-grid, .hakkimizda-icerik, .iletisim-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-sol h1 {
        font-size: 2.8rem;
    }
    
    .hero-butonlar {
        justify-content: center;
    }
    
    .hero-sag {
        margin-top: 30px;
    }
    
    .hakkimizda-icerik {
        flex-direction: column-reverse;
    }
    
    .mobil-menu-btn {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 85px;
        left: 0;
        right: 0;
        background-color: var(--renk-kart);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    
    .nav-menu.aktif {
        display: flex;
    }
    
    .header-cta {
        display: none;
    }
    
    .footer-icerik {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-alt {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}