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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    background: #fff;
}

/* ===== NAVİGASYON ===== */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 60px;
    z-index: 1000;
    transition: all 0.3s ease;
}

nav.scrolled {
    background-color: rgba(15, 15, 15, 0.97);
    padding: 14px 60px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.logo {
    color: #fff;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 2px;
}

.logo span {
    color: #f5a623;
}

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 35px;
}

nav ul a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: color 0.3s;
}

nav ul a:hover {
    color: #f5a623;
}

.nav-btn {
    background-color: #f5a623 !important;
    color: #fff !important;
    padding: 10px 22px;
    border-radius: 3px;
    font-weight: 600 !important;
}

.nav-btn:hover {
    background-color: #d4891a !important;
    color: #fff !important;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.45) 100%);
    z-index: 1;
}

.hero-icerik {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    padding: 20px;
}

.hero-etiket {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: #f5a623;
    margin-bottom: 18px;
}

.hero-icerik h1 {
    font-size: 68px;
    font-weight: 900;
    letter-spacing: 4px;
    margin-bottom: 22px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero-alt {
    font-size: 18px;
    opacity: 0.85;
    line-height: 1.7;
    margin-bottom: 40px;
}

.hero-butonlar {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-ana {
    background-color: #f5a623;
    color: #fff;
    padding: 16px 42px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    border-radius: 3px;
    letter-spacing: 1px;
    transition: background-color 0.3s, transform 0.2s;
}

.btn-ana:hover {
    background-color: #d4891a;
    transform: translateY(-2px);
}

.btn-ikincil {
    background-color: transparent;
    color: #fff;
    padding: 16px 42px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    border-radius: 3px;
    border: 2px solid rgba(255,255,255,0.7);
    transition: all 0.3s;
}

.btn-ikincil:hover {
    background-color: rgba(255,255,255,0.15);
    border-color: #fff;
}

.hero-asagi {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: rgba(255,255,255,0.6);
    font-size: 24px;
    animation: asagi 1.5s ease-in-out infinite;
}

@keyframes asagi {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== İSTATİSTİK ===== */
.istatistik {
    display: flex;
    background-color: #1a1a1a;
    justify-content: center;
    flex-wrap: wrap;
}

.ist-kart {
    flex: 1;
    min-width: 180px;
    text-align: center;
    padding: 45px 30px;
    border-right: 1px solid rgba(255,255,255,0.08);
}

.ist-kart:last-child {
    border-right: none;
}

.ist-kart h3 {
    font-size: 42px;
    font-weight: 800;
    color: #f5a623;
    margin-bottom: 8px;
}

.ist-kart p {
    color: rgba(255,255,255,0.6);
    font-size: 13px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ===== BÖLÜM BAŞLIK ===== */
.bolum-baslik {
    text-align: center;
    margin-bottom: 55px;
}

.etiket {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: #f5a623;
    margin-bottom: 12px;
}

.bolum-baslik h2 {
    font-size: 38px;
    font-weight: 800;
    color: #1a1a1a;
}

/* ===== HİZMETLER ===== */
.hizmetler {
    padding: 90px 60px;
    background-color: #f8f8f8;
}

.kartlar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto;
}

.kart {
    background: white;
    border-radius: 6px;
    padding: 40px 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 3px solid #f5a623;
}

.kart:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.12);
}

.kart-ikon {
    font-size: 32px;
    margin-bottom: 18px;
}

.kart h3 {
    font-size: 19px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.kart p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
}

/* ===== PROJELER GALERİ ===== */
.projeler {
    padding: 90px 60px;
    background: #fff;
}

.galeri {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 12px;
    max-width: 1100px;
    margin: 0 auto;
}

.galeri-item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.galeri-item.buyuk {
    grid-column: span 1;
    grid-row: span 2;
    aspect-ratio: auto;
}

.galeri-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.galeri-item:hover img {
    transform: scale(1.05);
}

.galeri-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 18px;
    opacity: 0;
    transition: opacity 0.3s;
}

.galeri-item:hover .galeri-overlay {
    opacity: 1;
}

.galeri-overlay span {
    color: white;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ===== HAKKIMIZDA ===== */
.hakkimizda {
    display: flex;
    align-items: center;
    gap: 70px;
    padding: 90px 60px;
    background-color: #f8f8f8;
    max-width: 100%;
}

.hakkimizda-gorsel {
    flex: 1;
    min-width: 300px;
}

.hakkimizda-gorsel img {
    width: 100%;
    border-radius: 6px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    display: block;
}

.hakkimizda-metin {
    flex: 1;
}

.hakkimizda-metin h2 {
    font-size: 38px;
    font-weight: 800;
    color: #1a1a1a;
    margin-bottom: 22px;
}

.hakkimizda-metin p {
    color: #555;
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.ozellikler {
    list-style: none;
    margin-top: 25px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ozellikler li {
    color: #333;
    font-size: 15px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ===== İLETİŞİM ===== */
.iletisim {
    padding: 90px 60px;
    background-color: #111;
}

.iletisim .bolum-baslik h2 {
    color: #fff;
}

.iletisim-icerik {
    display: flex;
    gap: 60px;
    max-width: 1100px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.iletisim-bilgi {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    justify-content: center;
}

.bilgi-kart {
    display: flex;
    align-items: center;
    gap: 18px;
}

.bilgi-ikon {
    font-size: 28px;
    width: 55px;
    height: 55px;
    background: rgba(245,166,35,0.15);
    border: 1px solid rgba(245,166,35,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.bilgi-baslik {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #f5a623;
    margin-bottom: 4px;
}

.bilgi-kart p:not(.bilgi-baslik) {
    color: rgba(255,255,255,0.85);
    font-size: 16px;
    font-weight: 500;
}

.bilgi-kart a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s;
}

.bilgi-kart a:hover {
    color: #f5a623;
}

.iletisim-form {
    flex: 1.5;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.form-satir {
    display: flex;
    gap: 14px;
}

.form-satir input {
    flex: 1;
}

.iletisim-form input,
.iletisim-form textarea {
    padding: 15px 18px;
    font-size: 14px;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 4px;
    outline: none;
    color: #fff;
    transition: border-color 0.3s;
    width: 100%;
}

.iletisim-form input::placeholder,
.iletisim-form textarea::placeholder {
    color: rgba(255,255,255,0.4);
}

.iletisim-form input:focus,
.iletisim-form textarea:focus {
    border-color: #f5a623;
}

.iletisim-form button {
    background-color: #f5a623;
    color: white;
    padding: 16px;
    font-size: 15px;
    font-weight: 700;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    letter-spacing: 1px;
    transition: background-color 0.3s, transform 0.2s;
}

.iletisim-form button:hover {
    background-color: #d4891a;
    transform: translateY(-2px);
}

/* ===== FOOTER ===== */
footer {
    background-color: #0a0a0a;
    padding: 40px 60px 20px;
}

.footer-icerik {
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding-bottom: 25px;
    margin-bottom: 20px;
}

.footer-logo {
    color: #fff;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.footer-logo span {
    color: #f5a623;
}

.footer-icerik p {
    color: rgba(255,255,255,0.4);
    font-size: 13px;
}

.footer-alt p {
    color: rgba(255,255,255,0.25);
    font-size: 12px;
    text-align: center;
}

/* ===== MOBİL (768px ve altı) ===== */
@media (max-width: 768px) {

    nav {
        padding: 15px 20px;
    }

    nav ul {
        display: none;
    }

    .hero-icerik h1 {
        font-size: 36px;
        letter-spacing: 2px;
    }

    .hero-etiket {
        font-size: 11px;
    }

    .hero-alt {
        font-size: 15px;
    }

    .btn-ana, .btn-ikincil {
        padding: 13px 28px;
        font-size: 14px;
    }

    .istatistik {
        flex-direction: column;
    }

    .ist-kart {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        padding: 30px 20px;
    }

    .ist-kart:last-child {
        border-bottom: none;
    }

    .hizmetler,
    .projeler,
    .iletisim {
        padding: 60px 20px;
    }

    .bolum-baslik h2 {
        font-size: 28px;
    }

    .galeri {
        grid-template-columns: 1fr 1fr;
    }

    .galeri-item.buyuk {
        grid-column: span 2;
        aspect-ratio: 16/9;
    }

    .hakkimizda {
        flex-direction: column;
        padding: 60px 20px;
        gap: 35px;
    }

    .hakkimizda-metin h2 {
        font-size: 28px;
    }

    .iletisim-icerik {
        flex-direction: column;
        gap: 35px;
    }

    .form-satir {
        flex-direction: column;
    }

    footer {
        padding: 30px 20px 15px;
    }
}

/* ===== ÇOK KÜÇÜK EKRAN (480px altı) ===== */
@media (max-width: 480px) {

    .hero-icerik h1 {
        font-size: 28px;
    }

    .galeri {
        grid-template-columns: 1fr;
    }

    .galeri-item.buyuk {
        grid-column: span 1;
        aspect-ratio: 4/3;
    }

    .ist-kart h3 {
        font-size: 32px;
    }
}