/* Genel ayarlar */
body {
    font-family: "Poppins", "Segoe UI", sans-serif;
    background: linear-gradient(120deg, #1e3c72, #2a5298); /* Mavi tonlarda gradient */
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Login kutusu */
.login-container {
    background: #ffffff;
    padding: 40px 50px;
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.25);
    width: 380px;
    text-align: center;
    animation: fadeIn 0.8s ease-in-out;
}

/* Başlık */
.login-container h2 {
    margin-bottom: 25px;
    color: #1e3c72;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 1px;
}

/* Etiketler */
.login-container label {
    display: block;
    text-align: left;
    margin: 12px 0 6px;
    font-weight: 500;
    color: #444;
}

/* Input alanları */
.login-container input[type="text"],
.login-container input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    outline: none;
    transition: all 0.3s ease;
    font-size: 14px;
}

.login-container input[type="text"]:focus,
.login-container input[type="password"]:focus {
    border-color: #2a5298;
    box-shadow: 0 0 6px rgba(42, 82, 152, 0.4);
}

/* Buton */
.login-container button {
    margin-top: 25px;
    width: 100%;
    padding: 14px;
    background: linear-gradient(120deg, #2a5298, #1e3c72);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.3s ease;
}

.login-container button:hover {
    transform: translateY(-2px);
    background: linear-gradient(120deg, #1e3c72, #0f1c3f);
}

/* Hata mesajı */
.error {
    color: #d32f2f;
    margin-bottom: 15px;
    font-weight: bold;
}

/* Animasyon */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}