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

body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle, rgba(6, 0, 87, 1) 0%, rgba(64, 64, 199, 1) 47%, rgba(0, 212, 255, 1) 92%);
    overflow: hidden;
}

.giris-kapsayici {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    padding: 20px;
}

.giris-karti {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    padding: 40px 30px;
    width: 100%;
    max-width: 360px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.giris-basligi {
    color: #ffffff;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 35px;
    letter-spacing: 1.5px;
}

.girdi-grubu {
    width: 100%;
    margin-bottom: 22px;
}

.form-girdisi {
    width: 100%;
    padding: 12px 16px 12px 40px;
    background: rgba(255, 255, 255, 0.07);
    border: none;
    border-bottom: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 8px 8px 0 0;
    color: #ffffff;
    font-size: 15px;
    outline: none;
    transition: all 0.3s ease;
    background-repeat: no-repeat;
    background-size: 18px;
    background-position: 12px center;
}

    .form-girdisi::placeholder {
        color: rgba(255, 255, 255, 0.55);
    }

    .form-girdisi:focus {
        border-bottom-color: #00E5FF;
        background: rgba(255, 255, 255, 0.15);
    }

.kullanici-ikonu {
    background-image: url("../IMAGES/usericon.png");
}

.sifre-ikonu {
    background-image: url("../IMAGES/password.png");
}

.form-secenekleri {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    font-size: 13.5px;
}

.beni-hatirla {
    display: flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
}

    .beni-hatirla input {
        margin-right: 8px;
        accent-color: #00E5FF;
        cursor: pointer;
    }

.sifremi-unuttum {
    color: #00E5FF;
    text-decoration: none;
    transition: color 0.3s ease;
}

    .sifremi-unuttum:hover {
        color: #ffffff;
        text-decoration: underline;
    }

.giris-butonu {
    width: 100%;
    padding: 13px;
    background: #00E5FF;
    border: 2px solid transparent;
    border-radius: 8px;
    color: #060057;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

    .giris-butonu:hover {
        background: transparent;
        border-color: #00E5FF;
        color: #00E5FF;
        box-shadow: 0 0 15px rgba(0, 229, 255, 0.5);
    }

.hata-mesaji {
    color: #FF5252;
    font-size: 13px;
    margin-top: 15px;
    text-align: center;
}