/* Giriş Sayfası */
.giris-kapsayici {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
    padding: 20px;
}

.giris-kart {
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

.giris-logo {
    text-align: center;
    margin-bottom: 32px;
}

.giris-logo svg {
    color: #2563eb;
    margin-bottom: 12px;
}

.giris-logo h1 {
    font-size: 1.5rem;
    color: #0f172a;
    margin: 0 0 4px;
    font-weight: 700;
}

.giris-logo p {
    color: #64748b;
    font-size: 0.875rem;
    margin: 0;
}

.giris-hata {
    background: #fef2f2;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.875rem;
    border: 1px solid #fecaca;
}

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

.giris-form label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 6px;
}

.giris-form input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.giris-form input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.giris-btn {
    width: 100%;
    padding: 14px;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.giris-btn:hover {
    background: #1d4ed8;
}