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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    padding-bottom: 60px;
    position: relative;
}

.giris-container {
    width: 100%;
    max-width: 400px;
}

.giris-kutusu {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    border: 2px solid #000000;
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.giris-kutusu h1 {
    text-align: center;
    color: #000000;
    margin-bottom: 30px;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

.form-grup label {
    display: block;
    margin-bottom: 8px;
    color: #000000;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.3px;
}

.form-grup input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #000000;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    outline: none;
    background: #ffffff;
    font-weight: 500;
}

.form-grup input:focus {
    border-color: #000000;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.hata-mesaji {
    background: #fee;
    color: #c33;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 15px;
    display: none;
    font-size: 14px;
    border-left: 4px solid #c33;
}

.hata-mesaji.goster {
    display: block;
}

.giris-butonu {
    width: 100%;
    padding: 14px;
    background: #000000;
    color: #ffffff;
    border: 2px solid #000000;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.giris-butonu:hover {
    background: #333333;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

.giris-butonu:active {
    transform: translateY(0);
}

.giris-butonu:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Footer */
.giris-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: #000000;
    color: #ffffff;
    padding: 15px 0;
    text-align: center;
}

.footer-icerik {
    max-width: 400px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-icerik p {
    margin: 0;
    font-size: 13px;
    font-weight: 500;
}

.footer-icerik a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.footer-icerik a:hover {
    border-bottom-color: #ffffff;
}