* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial Black', 'Segoe UI', sans-serif;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #050b14;
}

/* Arka plandaki 3D görselin tam ekran konumlandırılması */
.scene-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    /* İlettiğiniz görseli 'samsun-construction-bg.jpg' ismiyle klasöre ekleyin */
    background: url('samsun-construction-bg.jpg') no-repeat center center / cover;
    z-index: 1;
}

/* Ön Katman ve Arayüz Düzeni */
.web-interface {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    pointer-events: none; /* Arka planın görünmesini engellemez */
}

.web-interface * {
    pointer-events: auto; /* İntetaktif elemanları aktif eder */
}

/* Sol Alt: Şeffaf Cam Tabela */
.glass-signboard {
    position: absolute;
    left: 8%;
    bottom: 8%;
    background: rgba(15, 25, 40, 0.4);
    backdrop-filter: blur(8px);
    border: 2px solid rgba(0, 212, 255, 0.5);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
    padding: 15px 30px;
    border-radius: 8px;
}

.glass-content {
    display: flex;
    flex-direction: column;
}

.logo-samsun {
    color: #00d4ff;
    font-size: 1.8rem;
    font-weight: 900;
    text-transform: uppercase;
}

.logo-web {
    color: #a3d133;
    font-size: 1.4rem;
    font-weight: bold;
}

/* Sağ Alt: Dev Siyah Dijital Pano */
.digital-billboard {
    position: absolute;
    right: 5%;
    bottom: 12%;
    width: 380px;
    background: #090f18;
    border: 3px solid #00d4ff;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
    border-radius: 12px;
    padding: 25px;
    color: #ffffff;
    text-align: center;
}

.digital-billboard h2 {
    color: #00d4ff;
    font-size: 1.3rem;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.digital-billboard p {
    color: #94a3b8;
    font-size: 0.75rem;
    font-family: sans-serif;
    margin-bottom: 20px;
}

/* Sayaç Alanı */
.billboard-timer {
    display: flex;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.5);
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.billboard-timer .unit {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.billboard-timer span {
    font-size: 1.4rem;
    color: #a3d133;
    font-weight: bold;
}

.billboard-timer label {
    font-size: 0.6rem;
    color: #64748b;
    font-family: sans-serif;
}

/* E-posta Formu */
.billboard-form {
    display: flex;
    gap: 5px;
}

.billboard-form input {
    flex: 1;
    background: #152232;
    border: 1px solid #23354d;
    padding: 10px;
    border-radius: 4px;
    color: #fff;
    font-family: sans-serif;
    font-size: 0.8rem;
}

.billboard-form button {
    background: #00d4ff;
    border: none;
    padding: 10px 15px;
    color: #000;
    font-weight: bold;
    font-size: 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: 0.3s;
}

.billboard-form button:hover {
    background: #a3d133;
}

/* Mobil Ekranlar İçin Düzenleme */
@media (max-width: 900px) {
    .glass-signboard {
        display: none;
    }
    .digital-billboard {
        right: 50%;
        transform: translateX(50%);
        bottom: 5%;
        width: 90%;
    }
}